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San Germán, Puerto Rico Weather

First trades stir the ceiba canopy. Day 78 of spring. Read this microseason across nine climate regions →

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

San Germán, PR
Friday, June 5 at 2:42 AM
75
°
Overcast
Feels like
79°
Humidity
79%
Wind
8 mph
Sunrise
5:51 AM
Sunset
7:01 PM
San Germán, PR
Hour by hour · 24h
24-Hour ForecastSan Germán, PR: 24-hour forecast. Temperatures range from 72 to 89 degrees Fahrenheit with a 48% chance of precipitation at 11 AM.
L 72°H 89°
San Germán, PR
7-day forecast
  1. Today
    Jun 4
    Drizzle
    100%
    0.02″
    88°73°
  2. Friday
    Jun 5
    Overcast
    48%
    89°72°+1°
  3. Saturday
    Jun 6
    Showers
    92%
    0.16″
    88°72°-1°
  4. Sunday
    Jun 7
    Drizzle
    88%
    0.04″
    87°71°-1°
  5. Monday
    Jun 8
    Light Drizzle
    33%
    89°72°+2°
  6. Tuesday
    Jun 9
    Light Drizzle
    32%
    0.04″
    89°70°
  7. Wednesday
    Jun 10
    Light Drizzle
    88°73°-1°
San Germán, PR
Anemometer · 24h winds · from true
NESW
From · True
ESE
114° · veering 10°
Direction
ESE
114°
Sustained
8
mph
Gust
16
mph
Peak 24h
28
avg 8
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 8 · pk 28 @ 2:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 262SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 10° from the ese.
San Germán, PR
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1007.5
-1.8 mb in 3h · falling · 29.75 inHg
Now
1007.5
mb
3h
-1.8
mb
12h
0.0
mb
24h
0.0
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10051008
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1007.51005.11005.7
−24h−18h−12h−6hnow
Pressure giving way — clouds thicken and rain edges closer.
San Germán, PR
Air quality
32
AQI
Good
+4 in 6hPeak ~40 @ 9 AM

AQI 32 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5/PM10 ratio 0.48 with 8 mph wind — characteristic of long-range haze transport rather than a local source.

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

PM 2.5DRIVERGood
10.5μg/m³
PM 10Good
22μg/m³
NO₂Good
0μg/m³
OzoneGood
43μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5/PM10 ratio 0.48 with 8 mph wind — characteristic of long-range haze transport rather than a local source.

PM2.5/PM10
0.48
Wind
light
Recent rain
0h in last 6h
Pattern
transport
San Germán, PR
Sky cover · visibility · 24h
Cloud cover
96%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
56.9mi
UNLIMITED
100 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
02:42 UTC ·San Germán, 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
02:42 UTC ·San Germán, PR · NOAA NESDIS / STAR · 5-min cadence · 10000x6000 px
San Germán, PR
Satellite · infrared · animated
San Germán, PR
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
San Germán, PR
Almanac · Friday, June 5
The higher the clouds, the finer the weather.
Civil dawn
9:29 AM
Sunrise
5:51 AM
Daylight
13h 10m
Sunset
7:01 PM
Civil dusk
11:26 PM
Planting note
Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
San Germán, PR
The moon
Waning Gibbous
80% illuminated
Moonrise
2:42 AM
Moonset
2:12 PM
In sign
♒︎ Aquarius
San Germán, PR
Microseason
Jun 1–5

First trades stir the ceiba canopy

weather
Jan 142% of the yearDec 31

Read this microseason across nine climate regions →

San Germán at a glance

  • Today vs. normal: 22°F below the seasonal normal for this latitude
  • Last frost: December 5 (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 5, 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 San Germán

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.