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

Galveston, Texas Weather

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

Galveston weather forecast — hour by hour, 7-day outlook, NOAA radar

Galveston, TX
Sunday, August 2 at 9:58 AM
85
°
Overcast
Feels like
94°
Humidity
77%
Wind
8 mph
Sunrise
1:40 AM
Sunset
3:10 PM
Galveston, TX
Hour by hour · 24h
24-Hour ForecastGalveston, TX: 24-hour forecast. Temperatures range from 81 to 94 degrees Fahrenheit.
L 81°H 94°
Galveston, TX
7-day forecast
  1. Today
    Aug 2
    Overcast
    13%
    —
    94°81°—
  2. Monday
    Aug 3
    Overcast
    —
    —
    90°81°-4°
  3. Tuesday
    Aug 4
    Mostly Clear
    —
    —
    92°78°+2°
  4. Wednesday
    Aug 5
    Clear
    —
    —
    91°78°-1°
  5. Thursday
    Aug 6
    Drizzle
    —
    —
    91°81°0°
  6. Friday
    Aug 7
    Light Drizzle
    —
    —
    92°80°+1°
  7. Saturday
    Aug 8
    Light Drizzle
    13%
    —
    90°80°-2°
Galveston, TX
Next 24 hours · Warm now
HOT 90°78°88°98°12p6p12a6anow 83°high 94°low 81°PRECIP %
Galveston, TX
Anemometer · 24h winds · from true
NESW
From · True
WNW
289° · veering 62°
Direction
WNW
289°
Sustained
8
mph
Gust
15
mph
Peak 24h
26
avg 13 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 13 mph · pk 26 mph @ 5:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 198SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 62° from the wnw.
Galveston, TX
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1011.9
+1.0 mb in 3h · rising · 29.88 inHg
Now
1011.9
mb
3h
+1.0
mb
12h
+1.7
mb
24h
-2.9
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1009–1014
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1014.11008.71011.1
Pressure climbing through the change line — drier air pushing in.
Galveston, TX
Air quality
41
AQI
Good
→0 in 6h▲Peak ~68 @ 9 PM

AQI 41 (Good), driven by PM2.5. AQI projected to climb to 68 over the next 6 hours. PM2.5 at 5.4 µg/m³, PM10 at 7.4 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.

PM 2.5DRIVERGood
5.4μg/m³
PM 10Good
7μg/m³
NO₂Good
4μg/m³
OzoneGood
46μg/m³
UV IndexLow
1.6

What's driving it

PM × Wind × Precip

PM2.5 at 5.4 µg/m³, PM10 at 7.4 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.73
Wind
light
Recent rain
0h in last 6h
Pattern
background

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
Galveston, TX
Sky cover · visibility · 24h
Cloud cover
99%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
40.0mi
UNLIMITED
45 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
14:58 UTC · Galveston, TX · 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
14:58 UTC · Galveston, TX · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Galveston, TX
Satellite · infrared · animated
Galveston, TX
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Galveston, TX
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
6:16 AM
Sunrise
1:40 AM
Daylight
13h 30m
Sunset
3:10 PM
Civil dusk
8:38 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Galveston, TX
The moon
Waning Gibbous
84% illuminated
Moonrise
10:01 PM
Moonset
10:23 AM
In sign
♓︎ Pisces
Galveston, TX
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 →

Galveston at a glance

  • Today vs. normal: 12°F above the seasonal normal for this latitude
  • Last frost: February 10 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 77550, 77551, 77554, 77555

16-Day Forecast — Galveston

  1. Sun94°81°13%
  2. Mon90°81°5%
  3. Tue92°78°1%
  4. Wed91°78°3%
  5. Thu91°81°7%
  6. Fri92°80°5%
  7. Sat90°80°13%
  8. Sun91°79°27%
  9. Mon91°79°23%
  10. Tue91°79°21%
  11. Wed91°80°8%
  12. Thu91°79°3%
  13. Fri92°81°13%
  14. Sat92°80°3%
  15. Sun92°80°6%
  16. Mon92°79°13%

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

Live wind & temperature near Galveston

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 — Galveston

SPC includes Galveston 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 Galveston

Galveston sits in Galveston County, where the year’s longest day runs 14h 1m of daylight and its shortest just 10h 16m — a swing of +3h 45m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Houston, the state’s largest city, lies about 48 miles to the NW. The nearest town Galveston tracks is Pasadena, roughly 32 miles to the NNW.

Air quality in Galveston’s county has trended dirtier since 2020; its cleanest year on record was 2021 (median AQI 43). See the full air-quality history for Galveston.

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

August is Galveston's warmest stretch (~86°F) and January its coldest (~56°F); precipitation crests in September at 6.7 inches and ebbs in April to 2.1 inches.

MonthMean tempPrecipRainy days
January56°4.3″5
February59°2.1″3
March65°3.0″4
April72°2.1″3
May78°3.0″3
June84°4.2″6
July86°3.4″6
August86°4.7″5
September82°6.7″7
October75°5.2″5
November66°4.3″5
December59°4.2″5

Regional context

Drawing on NOAA NCEI 1991-2020 normals, Galveston's January averages 56°F and July 86°F — 30°F apart — while precipitation totals roughly 47.2 inches over some 56 days.

Galveston's precipitation spreads evenly: September peaks at 6.7 inches on 6.9 wet days, while April holds 2.1 inches over 3.2 — no month dominates Galveston's rain calendar. That even rhythm groups Galveston with places like Tiki Island, TX, Bayou Vista, TX and Jamaica Beach, TX.

Galveston rarely sees a hard freeze — its coldest month sits near 56°F — so planting spans most of the calendar. Heat peaks in August around 86°F, which confines cool-season crops to the shoulders of summer. Galveston's coastal lots stay 4-7°F milder overnight than Galveston's inland parcels.

Similar climates: Tiki Island, TX, Bayou Vista, TX, Jamaica Beach, TX, Hitchcock, TX, La Marque, TX.

Naturalist notes

Ruby-throated Hummingbird migration peaks in late April as these tiny travelers return from Central American wintering grounds.

Southern Magnolia trees begin their flowering cycle in May, producing large white blooms that perfume the coastal air.

Frequently asked

When does it freeze in Galveston?
In Galveston, expect the last spring frost near mid-February; Galveston's first autumn frost comes around mid-December.
What is the rainy season in Galveston?
Galveston sees its heaviest rain in September (around 6.7 inches), part of roughly 47 inches a year.
What is the warmest month in Galveston?
Galveston peaks in August, when the mean runs near 86°F.
What is the coldest month in Galveston?
January is Galveston's coldest month, averaging about 56°F.
When can I start a vegetable garden in Galveston?
Around mid-February, start frost-hardy crops in Galveston; tomatoes and basil belong a fortnight later.
How many rainy days does Galveston get?
Expect roughly 56 wet days a year in Galveston.
What hardiness zone is Galveston?
Because Galveston bottoms near 56°F in January, that winter low sets Galveston's USDA zone — verify by ZIP.
What is the 10-day forecast for Galveston?
Galveston'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 Galveston?
See this week's day-by-day rain chances for Galveston in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Galveston?
Current conditions for Galveston and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Galveston forecast updated?
The Galveston forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Galveston?
Today's sunrise and sunset times for Galveston 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 Galveston?
The next few days in Galveston's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

In Galveston, Texas, the humid subtropical climate runs from about 56°F in January to 86°F in July, a 30°F seasonal range.

Rain and snow bring Galveston roughly 47 inches a year across approximately 56 measurable-precipitation days.

From 29.2°N, Galveston sees a 30°F seasonal swing that governs Galveston's planting and frost windows.

All cities in Texas →

Houston, TX weather →

ZIP codes in Galveston

  • 77551
  • 77550
  • 77555
  • 77554
  • 77552
  • 77553

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.