Weather StoryAlmanac, microseasons, and the day's weather story.

St. Petersburg, Florida Weather

Dusk arrives one minute earlier each night. Day 43 of summer. Read this microseason across nine climate regions →

St. Petersburg weather forecast — hour by hour, 7-day outlook, NOAA radar

St. Petersburg, FL
Sunday, August 2 at 11:00 AM
80
°
Overcast
Feels like
88°
Humidity
90%
Wind
8 mph
Sunrise
2:54 AM
Sunset
4:19 PM
St. Petersburg, FL
Hour by hour · 24h
24-Hour ForecastSt. Petersburg, FL: 24-hour forecast. Temperatures range from 78 to 84 degrees Fahrenheit with a 62% chance of precipitation at 12 PM.
L 78°H 84°
St. Petersburg, FL
7-day forecast
  1. Today
    Aug 2
    Heavy Rain
    66%
    1.6″
    84°75°—
  2. Monday
    Aug 3
    Heavy Rain
    34%
    1.2″
    83°74°-1°
  3. Tuesday
    Aug 4
    Thunderstorm
    43%
    0.07″
    88°76°+5°
  4. Wednesday
    Aug 5
    Thunderstorm
    57%
    —
    92°80°+4°
  5. Thursday
    Aug 6
    Thunderstorm
    79%
    —
    94°80°+2°
  6. Friday
    Aug 7
    Overcast
    74%
    —
    94°80°0°
  7. Saturday
    Aug 8
    Overcast
    73%
    —
    93°80°-1°
St. Petersburg, FL
Next 24 hours · Mild now
75°81°86°12p6p12a6anow 80°high 84°low 78°PRECIP %
St. Petersburg, FL
Anemometer · 24h winds · from true
NESW
From · True
S
173° · backing 98°
Direction
S
173°
Sustained
8
mph
Gust
17
mph
Peak 24h
17
avg 5 mph
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 5 mph · pk 17 mph @ 11:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2112SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 98° from the s.
St. Petersburg, FL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1012.7
+0.4 mb in 3h · steady · 29.91 inHg
Now
1012.7
mb
3h
+0.4
mb
12h
+0.5
mb
24h
-0.8
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1011–1014
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1013.51011.01012.7
Air sits at the threshold — small shifts decide the day.
St. Petersburg, FL
Air quality
32
AQI
Good
↓-5 in 6h

AQI 32 (Good), driven by Ozone. AQI down 5 over the last 6 hours (gradual decline).

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5Good
4.7μg/m³
PM 10Good
7μg/m³
NO₂Good
1μg/m³
OzoneDRIVERModerate
62μg/m³
UV IndexLow
2.0

What's driving it

PM × Wind × Precip

PM scrubbed by 3 hours of recent rain — PM2.5 down to 4.7 µg/m³, PM10 to 7.4 µg/m³.

PM2.5/PM10
0.64
Wind
light
Recent rain
3h in last 6h
Pattern
washed out

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
St. Petersburg, FL
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
29.2mi
UNLIMITED
56 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
15:00 UTC · St. Petersburg, FL · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
15:00 UTC · St. Petersburg, FL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
St. Petersburg, FL
Satellite · infrared · animated
St. Petersburg, FL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
St. Petersburg, FL
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
6:30 AM
Sunrise
2:54 AM
Daylight
13h 25m
Sunset
4:19 PM
Civil dusk
8:46 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
St. Petersburg, FL
The moon
Waning Gibbous
84% illuminated
Moonrise
10:11 PM
Moonset
10:33 AM
In sign
♓︎ Pisces
St. Petersburg, FL
Microseason
Aug 1–5

Dusk arrives one minute earlier each night

celestial
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

St. Petersburg at a glance

  • Today vs. normal: 5°F above the seasonal normal for this latitude
  • Last frost: February 2 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

16-Day Forecast — St. Petersburg

  1. Sun84°75°66%
  2. Mon83°74°34%
  3. Tue88°76°43%
  4. Wed92°80°57%
  5. Thu94°80°79%
  6. Fri94°80°74%
  7. Sat93°80°73%
  8. Sun91°80°45%
  9. Mon92°82°34%
  10. Tue91°82°18%
  11. Wed94°81°17%
  12. Thu91°80°40%
  13. Fri91°81°35%
  14. Sat91°81°26%
  15. Sun92°81°25%
  16. Mon94°76°24%

Forecast data from Open-Meteo (CC BY 4.0).

Live wind & temperature near St. Petersburg

Right now in the garden

Peak growing season

As of August 2, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — St. Petersburg

SPC includes St. Petersburg in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

Sun & seasons in St. Petersburg

St. Petersburg sits in Pinellas County, where the year’s longest day runs 13h 54m of daylight and its shortest just 10h 23m — a swing of +3h 31m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Miami, the state’s largest city, lies about 205 miles to the SE. The nearest town St. Petersburg tracks is Tampa, roughly 19 miles to the NE.

Air quality in St. Petersburg’s county has held roughly steady since 2020; its cleanest year on record was 2025 (median AQI 44). See the full air-quality history for St. Petersburg.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its Return.December 26–31: The Year Turns in Silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · August 1–5

Dusk arrives one minute earlier each night

Sunset slides back toward 8 PM; darkness creeps in, signaling summer's decline though heat persists.

Day 214 of 365 · Wedge 43 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
Februarylettuce, peas, spinach, radishes—
Marchlettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Apriltomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
June—lettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

St. Petersburg peaks at about 82°F in August and bottoms near 61°F in January; August brings the heaviest rain (5.8 inches) and November the least (1.5 inches).

MonthMean tempPrecipRainy days
January61°2.8″15
February62°2.7″13
March66°2.8″13
April71°2.2″11
May77°1.8″14
June81°4.7″23
July82°5.4″28
August82°5.8″29
September80°4.8″25
October76°2.2″15
November68°1.5″13
December64°2.3″14

Regional context

St. Petersburg swings from 61°F in January to 82°F in July (21°F) per NOAA NCEI 1991-2020 normals; precipitation in St. Petersburg runs about 39 inches on roughly 212 measurable days.

Precipitation in St. Petersburg runs summer-dominant: August averages 5.8 inches across 28.8 days of warm-season storms, while November drops to 1.5 inches over 13.1 rainy days of drier cool air. That summer-storm rhythm groups St. Petersburg with places like Lealman, FL, Kenneth City, FL and Gulfport, FL.

Hard freezes are rare in St. Petersburg: the coldest month averages 61°F, so St. Petersburg's growing window runs most of the year. August is the hottest stretch near 82°F, pushing cool-season crops to the milder shoulder months. Across St. Petersburg, elevation and tree cover drive a 4-7°F spread in St. Petersburg's overnight lows.

Similar climates: Lealman, FL, Kenneth City, FL, Gulfport, FL, Bear Creek, FL, West Lealman, FL.

Naturalist notes

Late May brings the arrival of ruby-throated hummingbirds returning from their winter grounds farther south.

Bougainvillea reaches peak flowering during May's warming temperatures, painting fences and walls in brilliant magenta and purple.

Frequently asked

When does it freeze in St. Petersburg?
St. Petersburg's last spring frost lands near mid-February, and in St. Petersburg the first fall frost follows around mid-December.
What is the rainy season in St. Petersburg?
August is the wettest month in St. Petersburg, about 5.8 inches on average; the year totals roughly 39 inches.
What is the warmest month in St. Petersburg?
The warmest stretch in St. Petersburg comes in August, around 82°F on average.
What is the coldest month in St. Petersburg?
On average January is the chilliest month in St. Petersburg, about 61°F.
When can I start a vegetable garden in St. Petersburg?
Frost-hardy sowings begin at mid-February in St. Petersburg; warm-season starts follow two weeks on.
How many rainy days does St. Petersburg get?
St. Petersburg averages about 212 days with measurable rain or snow each year.
What hardiness zone is St. Petersburg?
St. Petersburg sits in the USDA zone set by January lows near 61°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for St. Petersburg?
St. Petersburg's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in St. Petersburg?
See this week's day-by-day rain chances for St. Petersburg in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in St. Petersburg?
Current conditions for St. Petersburg and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the St. Petersburg forecast updated?
The St. Petersburg forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in St. Petersburg?
Today's sunrise and sunset times for St. Petersburg are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for St. Petersburg?
The next few days in St. Petersburg's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

St. Petersburg, Florida has a humid subtropical climate: January averages roughly 61°F, July about 82°F, 21°F between them.

Yearly precipitation in St. Petersburg totals around 39 inches, spread over about 212 days of rain or snow.

At 27.8°N, St. Petersburg's 21°F summer-to-winter swing sets when St. Petersburg's gardens wake and when frost returns.

All cities in Florida →

Tampa, FL weather →

ZIP codes in St. Petersburg

  • 33707
  • 33702
  • 33762
  • 33713
  • 33712
  • 33711
  • 33710
  • 33716
  • 33715
  • 33714
  • 33705
  • 33703
  • 33704
  • 33701
  • 33729
  • 33731
  • 33732
  • 33733
  • 33734
  • 33742
  • 33743
  • 33747

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.