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

Arecibo, Puerto Rico Weather

August opens — storms become routine. Day 43 of summer. Read this microseason across nine climate regions →

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

Arecibo, PR
Sunday, August 2 at 10:59 AM
87
°
Overcast
Feels like
95°
Humidity
66%
Wind
9 mph
Sunrise
2:05 AM
Sunset
3:01 PM
Arecibo, PR
Hour by hour · 24h
24-Hour ForecastArecibo, PR: 24-hour forecast. Temperatures range from 77 to 88 degrees Fahrenheit with a 56% chance of precipitation at 4 PM.
L 77°H 88°
Arecibo, PR
7-day forecast
  1. Today
    Aug 2
    Thunderstorm
    56%
    0.04″
    88°77°
  2. Monday
    Aug 3
    Light Drizzle
    14%
    89°77°+1°
  3. Tuesday
    Aug 4
    Thunderstorm
    78%
    0.04″
    87°74°-2°
  4. Wednesday
    Aug 5
    Thunderstorm
    94%
    0.05″
    86°74°-1°
  5. Thursday
    Aug 6
    Thunderstorm
    99%
    0.09″
    88°74°+2°
  6. Friday
    Aug 7
    Thunderstorm
    47%
    0.02″
    87°76°-1°
  7. Saturday
    Aug 8
    Light Drizzle
    27%
    0.05″
    87°77°
Arecibo, PR
Anemometer · 24h winds · from true
NESW
From · True
ENE
076° · veering 7°
Direction
ENE
076°
Sustained
9
mph
Gust
21
mph
Peak 24h
25
avg 7 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 7 mph · pk 25 mph @ 12:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 278SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 7° from the ene.
Arecibo, PR
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1007.8
+0.7 mb in 3h · rising · 29.76 inHg
Now
1007.8
mb
3h
+0.7
mb
12h
+1.0
mb
24h
+0.4
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10061008
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1008.01005.51007.9
Damp, unsettled regime — wet weather lingers nearby.
Arecibo, PR
Air quality
19
AQI
Good
-5 in 6h

AQI 19 (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
2.7μg/m³
PM 10Good
4μg/m³
NO₂Good
0μg/m³
OzoneDRIVERGood
38μg/m³
UV IndexHigh
5.8
Arecibo, PR
Sky cover · visibility · 24h
Cloud cover
91%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
31.6mi
UNLIMITED
85 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
14:59 UTC · Arecibo, PR · 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
14:59 UTC · Arecibo, PR · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Arecibo, PR
Satellite · infrared · animated
Arecibo, PR
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Arecibo, PR
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
5:43 AM
Sunrise
2:05 AM
Daylight
12h 56m
Sunset
3:01 PM
Civil dusk
7:25 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Arecibo, PR
The moon
Waning Gibbous
84% illuminated
Moonrise
9:04 PM
Moonset
9:25 AM
In sign
♓︎ Pisces
Arecibo, PR
Microseason
Aug 1–5

August opens — storms become routine

plant
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

Arecibo at a glance

  • Today vs. normal: 3°F above the seasonal normal for this latitude
  • Last frost: December 8 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP code: 00612

16-Day Forecast — Arecibo

  1. Sun88°77°56%
  2. Mon89°77°14%
  3. Tue87°74°78%
  4. Wed86°74°94%
  5. Thu88°74°99%
  6. Fri87°76°47%
  7. Sat87°77°27%
  8. Sun88°77°38%
  9. Mon85°78°62%
  10. Tue87°77°42%
  11. Wed89°77°48%
  12. Thu86°77°47%
  13. Fri88°78°35%
  14. Sat89°78°28%
  15. Sun87°76°34%
  16. Mon89°72°30%

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

Live wind & temperature near Arecibo

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.

Sun & seasons in Arecibo

Arecibo sits in Arecibo County, where the year’s longest day runs 13h 14m of daylight and its shortest just 11h 1m — a swing of +2h 13m between the June and December solstices.

San Juan, the state’s largest city, lies about 45 miles to the E. The nearest town Arecibo tracks is Aguadilla, roughly 27 miles to the W.

ZIP codes in Arecibo

  • 00612
  • 00613
  • 00614

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.