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

Isabela, Puerto Rico Weather

First trades stir the ceiba canopy. Day 77 of spring. Read this microseason across nine climate regions →

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

Isabela, PR
Thursday, June 4 at 11:37 PM
76
°
Overcast
Feels like
85°
Humidity
91%
Wind
3 mph
Sunrise
5:50 AM
Sunset
7:02 PM
Isabela, PR
Hour by hour · 24h
24-Hour ForecastIsabela, PR: 24-hour forecast. Temperatures range from 72 to 86 degrees Fahrenheit with a 100% chance of precipitation at 11 AM.
L 72°H 86°
Isabela, PR
7-day forecast
  1. Today
    Jun 4
    Light Showers
    100%
    0.15″
    86°72°
  2. Friday
    Jun 5
    Light Showers
    100%
    0.06″
    86°72°
  3. Saturday
    Jun 6
    Thunderstorm
    100%
    0.10″
    86°74°
  4. Sunday
    Jun 7
    Thunderstorm
    100%
    0.06″
    85°73°-1°
  5. Monday
    Jun 8
    Thunderstorm
    42%
    0.01″
    86°74°+1°
  6. Tuesday
    Jun 9
    Light Drizzle
    29%
    0.02″
    84°74°-2°
  7. Wednesday
    Jun 10
    Overcast
    84°74°
Isabela, PR
Anemometer · 24h winds · from true
NESW
From · True
SE
144° · veering 10°
Direction
SE
144°
Sustained
3
mph
Gust
8
mph
Peak 24h
22
avg 5
Beaufort · 1 · LIGHT AIR
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 · pk 22 @ 1:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 214SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 10° from the se.
Isabela, PR
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1008.2
+1.7 mb in 3h · rising · 29.77 inHg
Now
1008.2
mb
3h
+1.7
mb
12h
+1.5
mb
24h
+0.7
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10081010
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1010.21007.51010.2
−24h−18h−12h−6hnow
Pressure climbing through the change line — drier air pushing in.
Isabela, PR
Air quality
29
AQI
Good
+6 in 6h

PM2.5 at 5.8 µg/m³, PM10 at 9.7 µg/m³ — typical background levels with no transport signature. AQI up 6 over the last 6 hours (gradual rise).

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

PM 2.5DRIVERGood
5.8μg/m³
PM 10Good
10μg/m³
NO₂Good
0μg/m³
OzoneGood
52μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5 at 5.8 µg/m³, PM10 at 9.7 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.60
Wind
calm
Recent rain
0h in last 6h
Pattern
background
Isabela, PR
Sky cover · visibility · 24h
Cloud cover
95%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
34.9mi
UNLIMITED
71 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
23:37 UTC ·Isabela, PR · NOAA NESDIS / STAR · 21696x21696 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
23:37 UTC ·Isabela, PR · NOAA NESDIS / STAR · 5-min cadence · 10000x6000 px
Isabela, PR
Satellite · infrared · animated
Isabela, PR
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Isabela, PR
Almanac · Thursday, June 4
A summer fog for fair, a winter fog for rain.
Civil dawn
9:28 AM
Sunrise
5:50 AM
Daylight
13h 12m
Sunset
7:02 PM
Civil dusk
11:27 PM
Planting note
Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Isabela, PR
The moon
Waning Gibbous
81% illuminated
Moonrise
1:59 AM
Moonset
1:17 PM
In sign
♒︎ Aquarius
Isabela, PR
Microseason
Jun 1–5

First trades stir the ceiba canopy

fish
Jan 142% of the yearDec 31

Read this microseason across nine climate regions →

Isabela at a glance

  • Today vs. normal: 21°F below the seasonal normal for this latitude
  • Last frost: December 8 (climatological average for this latitude)
  • Microseason: Jun 1–5
  • Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.

Right now in the garden

Peak growing season

As of June 4, 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.

ZIP codes in Isabela

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.