San Juan weather — 10-day forecast
Temperature, rain, wind and feels-like in San Juan, hour by hour and over 10 days, with the seasonal normal for context.
Now
Reading from 21:00 · NOAA HRRR model
31 °C
Clear sky
Next 12 h
- 2131°
- 2230°
- 2329°
- 0028°
- 0128°
- 0227°
- 0327°
- 0426°
- 0526°
- 0626°
- 0725°
- 07:02Sunrise
- 0826°11 %
- 0928°89 %
↑ 31°21:00↓ 25°07:00
- Humidity
- 55 %
- Dew point
- 21 °C
- Gusts
- 36.2 km/h
- Clouds
- 0 %
- Pressure
- 1,016 hPa ↑
- Storm
- likely
Grid point 1.0 km away · 3.0 km grid · elevation 35 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by Ozone
- Ozone
- 49.6µg/m³
- PM2.5
- 3.0µg/m³
- PM10
- 4.2µg/m³
- Nitrogen dioxide
- 1.8µg/m³
- Sulphur dioxide
- 0.4µg/m³
- Carbon monoxide
- 96.0µg/m³
- Dust (AOD)
- 0.01
Generated using Copernicus Atmosphere Monitoring Service information
Hour by hour
Step-by-step detail: temperature, wind, cloud cover and ultraviolet.
10 days
Each day's extremes and the chance of rain, out to the end of the run.
Rain probability (> 1 mm): 50 ECMWF ensemble members.
Today
Mainly clear64 %
37°
29°
Sat
Thunderstorm66 %
37°
25°
Sun
Thunderstorm66 %
35°
25°
Mon
Mainly clear64 %
39°
26°
Tue
Mainly clear
38°
27°
Wed
Mainly clear
37°
27°
Thu
Mainly clear
37°
27°
Fri
Mainly clear
37°
27°
Sat
Thunderstorm1 mm
35°
27°
Sun
Thunderstorm3 mm
35°
25°
Gusts · Mon 50.4 km/h · Tue 54.1 km/h · Wed 59.3 km/h · Thu 60.2 km/h · Fri 57.7 km/h · Sat 62.3 km/h
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 07:02
- Daylight
- 13 h 14
- Sunset
- 20:16
Radiation · 13.6 MJ/m²
Today in San Juan the mean temperature will be 34.0 °C — +3.8 °C against the normal for 7 August, measured from 1940 to 2026. (1,290 obs.)