Climate & Weather in San Juan, 🇵🇷 Puerto Rico - Monthly Averages, Forecast & Air Quality
🇵🇷 San Juan,
Puerto Rico
#1246
Nomad Score
6.5
Coords
18.4028210, -66.0581700
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CURRENT CONDITIONS
Temperature
31.6°C
/
25.8°C
Feels Like
36.9°C / 30.7°C
Weather
⛈️ Thunderstorm
Humidity
%
Wind
16.5 km/h
(gusts 40.7)
UV Index
8.8
Sunrise / Sunset
06:11
/
18:28
Daylight
12.3 hrs
7-DAY FORECAST
| Date | Weather | High | Low | Rain % |
|---|---|---|---|---|
| Sun 13 Sep | ⛈️ Thunderstorm | 31.6° | 25.8° | 92% |
| Mon 14 Sep | 🌧️ Light drizzle | 31.8° | 25.0° | 87% |
| Tue 15 Sep | 🌧️ Moderate drizzle | 32.4° | 25.1° | 84% |
| Wed 16 Sep | ⛈️ Thunderstorm | 32.1° | 23.6° | 55% |
| Thu 17 Sep | ⛈️ Thunderstorm | 31.9° | 24.9° | 92% |
| Fri 18 Sep | 🌧️ Light drizzle | 33.0° | 24.5° | 53% |
| Sat 19 Sep | ⛈️ Thunderstorm | 31.8° | 25.7° | 80% |
BEST MONTHS TO VISIT
| Month | Rating | Avg High | Avg Low | Rain Days |
|---|---|---|---|---|
| January | Good | 29.2°C | 21.1°C | 10.8 |
| December | Good | 29.5°C | 22.0°C | 12.4 |
| March | Good | 30.0°C | 21.1°C | 13.7 |
| November | Good | 30.5°C | 23.1°C | 14.0 |
| February | Fair | 28.8°C | 20.9°C | 16.2 |
| April | Fair | 30.2°C | 21.7°C | 17.4 |
| June | Fair | 32.3°C | 24.1°C | 14.4 |
| May | Fair | 31.5°C | 23.0°C | 17.0 |
| July | Fair | 32.1°C | 24.5°C | 16.1 |
| October | Fair | 32.1°C | 23.9°C | 17.0 |
| August | Fair | 32.5°C | 24.7°C | 17.8 |
| September | Fair | 32.5°C | 24.3°C | 20.6 |
TEMPERATURE BY MONTH
PRECIPITATION & RAIN DAYS
SUNSHINE, UV & HUMIDITY
AIR QUALITY
117
🟠 Unhealthy for Sensitive Groups
US Air Quality Index
European AQI: 74
PM2.5
53.1 µg/m³
PM10
171.4 µg/m³
Ozone
39.0 µg/m³
NO₂
0.3 µg/m³
SO₂
0.4 µg/m³
CO
94.0 µg/m³
UV Index
0.5
Dust
208.0 µg/m³
MONTHLY CLIMATE DATA
| Month | High | Low | Mean | Feels Hi | Feels Lo | Precip | Rain Days | Snow | Sun | Daylight | UV | Humidity | Wind | Clouds |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 29.2° | 21.1° | 24.7° | 31.0° | 23.5° | 41.3 mm | 10.8 | 0.0 cm | 334.8 hrs | 11.2 hrs | - | 75.2% | 17.7 km/h | 36.4% |
| Feb | 28.8° | 20.9° | 24.3° | 30.5° | 23.2° | 74.7 mm | 16.2 | 0.0 cm | 299.6 hrs | 11.6 hrs | - | 75.4% | 19.1 km/h | 35.2% |
| Mar | 30.0° | 21.1° | 25.0° | 32.2° | 23.6° | 54.6 mm | 13.7 | 0.0 cm | 347.2 hrs | 12.1 hrs | - | 72.7% | 18.3 km/h | 34.3% |
| Apr | 30.2° | 21.7° | 25.5° | 33.1° | 24.6° | 89.3 mm | 17.4 | 0.0 cm | 348.0 hrs | 12.6 hrs | - | 73.7% | 17.5 km/h | 48.9% |
| May | 31.5° | 23.0° | 26.7° | 35.4° | 26.9° | 100.1 mm | 17.0 | 0.0 cm | 362.7 hrs | 13.0 hrs | - | 76.5% | 16.7 km/h | 57.0% |
| Jun | 32.3° | 24.1° | 27.7° | 35.9° | 28.2° | 69.9 mm | 14.4 | 0.0 cm | 357.0 hrs | 13.2 hrs | - | 73.7% | 18.7 km/h | 67.1% |
| Jul | 32.1° | 24.5° | 27.9° | 35.7° | 28.8° | 79.0 mm | 16.1 | 0.0 cm | 368.9 hrs | 13.1 hrs | - | 74.7% | 20.0 km/h | 58.0% |
| Aug | 32.5° | 24.7° | 28.1° | 36.8° | 29.1° | 97.5 mm | 17.8 | 0.0 cm | 350.3 hrs | 12.7 hrs | - | 75.6% | 18.6 km/h | 55.4% |
| Sep | 32.5° | 24.3° | 27.8° | 37.3° | 28.8° | 132.4 mm | 20.6 | 0.0 cm | 324.0 hrs | 12.2 hrs | - | 77.7% | 15.9 km/h | 61.5% |
| Oct | 32.1° | 23.9° | 27.4° | 36.6° | 28.3° | 124.2 mm | 17.0 | 0.0 cm | 319.3 hrs | 11.7 hrs | - | 77.8% | 14.8 km/h | 59.8% |
| Nov | 30.5° | 23.1° | 26.3° | 34.0° | 26.8° | 94.4 mm | 14.0 | 0.0 cm | 297.0 hrs | 11.3 hrs | - | 78.1% | 16.1 km/h | 51.0% |
| Dec | 29.5° | 22.0° | 25.3° | 31.7° | 24.9° | 51.2 mm | 12.4 | 0.0 cm | 325.5 hrs | 11.0 hrs | - | 75.2% | 17.1 km/h | 36.2% |