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SÆ¡n La Climate by Month

The weather in Sơn La sees moderate temperature fluctuations over the course of a year. Temperatures can be very warm at the high end to roughly warm at the low end. It is also known for its large amounts of rainfall. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

In Sơn La, seasonal changes bring about a moderate variation in temperatures. Typically, daytime temperatures range from a very warm 31°C in May to a comfortable 22°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to 12°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

SÆ¡n La experiences significant rainfall throughout the year, averaging 1663 mm of precipitation annually. The climate in SÆ¡n La shows significant variation throughout the year. Expect heavy rainfall in July, with an average of 349 mm of precipitation over 22 rainy days. In contrast, February offers drier and sunnier days, with around 29 mm of rainfall over 8 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

SÆ¡n La offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between May (6.8 hours daily) and February (4.7 hours daily) provides a bit of variety for visitors and residents.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit SÆ¡n La in Vietnam

During the months of January, February, November and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is the rainy season in SÆ¡n La?
    Rainy season in SÆ¡n La occurs in the months of May, June, July, August and September.
  • Which is the warmest month in SÆ¡n La?
    May has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in SÆ¡n La?
    The coldest month is January with an average maximum temperature of 22°C.
  • Which is the wettest month in SÆ¡n La?
    July tops the wettest month list with 349 mm of rainfall.
  • Which is the driest month in SÆ¡n La?
    February is the driest month with 29 mm of precipitation.
  • Which is the sunniest month in SÆ¡n La?
    May is the sunniest month with an average of 205 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for SÆ¡n La

    Tue   Dec 03
    24°C | 13°C
    SE 7 km/h
    broken clouds and no rain

    broken clouds and no rain

    Wed   Dec 04
    23°C | 15°C
    SE 4 km/h
    1.3 mm
    broken clouds and rain

    broken clouds and rain

    Thu   Dec 05
    21°C | 16°C
    SE 7 km/h
    6.4 mm
    broken clouds and rain

    broken clouds and rain