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 18:00 · DWD ICON global model

29 °C

Overcast

Feels like 35 °C

4.1 km/hforce 1

Next 12 h

  • 1829°
  • 1928°74 %
  • 2027°83 %
  • 2127°48 %
  • 2227°11 %
  • 2326°12 %
  • 0026°13 %
  • 0126°13 %
  • 0226°12 %
  • 0326°92 %
  • 0426°93 %
  • 0525°93 %
  • 05:32Sunrise
  • 0625°90 %

↑ 29°18:00↓ 25°06:00

Humidity
82 %
Dew point
25 °C
Gusts
7.8 km/h
Clouds
100 %
Pressure
1,008 hPa ↑
Storm
possible

Grid point 4.5 km away · 13.0 km grid · elevation 88 m

Air quality

The European air-quality index for the city, and the pollutants that set it.

Reading from 19:00
16
Good

Index set by PM2.5

PM2.5
8.1µg/m³
PM10
8.2µg/m³
Ozone
18.4µg/m³
Nitrogen dioxide
0.9µg/m³
Sulphur dioxide
0.2µg/m³
Carbon monoxide
214.0µg/m³
Dust (AOD)
0.00

Generated using Copernicus Atmosphere Monitoring Service information

Hour by hour

Step-by-step detail: temperature, wind, cloud cover and ultraviolet.

Estimated from a deterministic model, not an ensemble probability.
°C

10 days

Each day's extremes and the chance of rain, out to the end of the run.

25° → 36°

Rain probability (> 1 mm): 50 ECMWF ensemble members.

  • Today

    Thunderstorm78 %

    32°

    26°

  • Tue

    Thunderstorm86 %

    30°

    25°

  • Wed

    Thunderstorm100 %

    29°

    26°

  • Thu

    Thunderstorm100 %

    31°

    26°

  • Fri

    Thunderstorm100 %

    32°

    26°

  • Sat

    Thunderstorm90 %

    34°

    25°

  • Sun

    Mainly clear

    36°

    27°

  • Mon

    Thunderstorm1 mm

    35°

    28°

  • Tue

    Thunderstorm3 mm

    33°

    26°

  • Wed

    Thunderstorm7 mm

    31°

    25°

Sun and UV

Sunrise, sunset, day length and ultraviolet intensity.

Max UV10very high
Sunrise
05:32
Daylight
12 h 13
Sunset
17:45

Radiation · 17.8 MJ/m²

Today in San Juan the mean temperature will be 28.8 °C — +3.0 °C against the normal for 19 October, measured from 1940 to 2026. (1,291 obs.)

San Juan climate — normals and trends →

Nearby cities

The climate around San Juan