Best year time to visit San Juan

General weather information about San Juan

Average annual temperature is 18.0 °C

Absolute maximum temperature: 38.7 °C

Absolute minimum temperature: 0.3 °C

Number of sunny days: 206 days

Number of rainy days: 159 days

Look at detailed online map of San Juan

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

San Juan air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)36.538.737.928.724.624.725.627.525.628.232.531.8
Average daytime temperature (°C)32.230.630.522.619.716.515.917.617.822.025.626.7
Average temperature (°C)26.124.525.417.515.212.111.712.613.416.419.821.7
Average night temperature (°C)20.219.120.913.411.68.48.48.59.711.414.717.2
Absolute minimum temperature (°C)15.310.112.57.93.70.70.32.03.44.68.111.9

San Juan monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)14.013.012.011.010.010.010.011.012.013.014.014.0
Daylight mean duration (h)14.113.312.311.210.49.910.110.911.912.913.914.4
Daylight minimum duration (h)13.012.011.010.010.09.09.010.011.012.013.014.0
Sunshine mean duration (h)11.910.410.28.87.26.56.68.67.09.911.210.2
Precipitation (mm)344013054138974691196080151
Sunny days221613162018202015181711
Rainy days91218141112111115131320
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:

  • January — 11.9(h)

The largest precipitation sum in San Juan is at

  • March — 130(mm)
  • May — 138(mm)
  • September — 119(mm)
  • December — 151(mm)

    • Weather forecast in the closest to San Juan admin centers

    Weather forecast in the closest towns to San Juan

    Explore San Juan

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    MapTrains schedule
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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.