Best year time to visit San Juan

General weather information about San Juan

Average annual temperature is 14.9 °C

Absolute maximum temperature: 31.6 °C

Absolute minimum temperature: 0.2 °C

Number of sunny days: 133 days

Number of rainy days: 232 days

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* Weather data for San Juan Spain is based on climate observations for 2026 year

San Juan air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.017.223.921.424.728.531.030.728.731.622.620.8
Average daytime temperature (°C)12.212.216.416.817.821.922.623.323.922.216.514.1
Average temperature (°C)9.28.112.413.215.019.019.620.319.718.013.710.6
Average night temperature (°C)6.24.78.59.912.116.016.617.416.014.511.27.3
Absolute minimum temperature (°C)0.21.21.04.68.913.313.013.012.49.76.71.4

San Juan monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.715.415.113.912.511.09.79.0
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)5.27.78.69.910.910.210.89.59.96.65.44.9
Precipitation (mm)2756256728098397274146189103
Sunny days101713141011781510711
Rainy days211118162119242315212320
Snow days000000000000

San Juan - weather forecast by months

San Juan weather in januarySan Juan weather in februarySan Juan weather in marchSan Juan weather in aprilSan Juan weather in maySan Juan weather in juneSan Juan weather in julySan Juan weather in augustSan Juan weather in septemberSan Juan weather in octoberSan Juan weather in novemberSan Juan weather in december

Best time to visit San Juan:

The best time to visit San Juan during the most sunny months:

  • May — 10.9(h)
  • July — 10.8(h)

Months with the longest average daylight duration in San Juan:

  • June — 15.4(h)

The largest precipitation sum in San Juan is at

  • January — 275(mm)
  • October — 146(mm)
  • November — 189(mm)

    • Weather forecast in the closest to San Juan admin centers

    Weather forecast in the closest towns to San Juan

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    Frequently asked questions

    When is the best time to visit San Juan?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit San Juan.
    What is the weather like in San Juan?
    See average temperature, rainfall and daylight hours for San Juan by month in the table above.
    How many sunny days does San Juan have?
    The monthly weather statistics above show sunshine and rainfall patterns for San Juan throughout the year.