Year-round weather and climate in Sơn La, Vietnam
Average temperatures in Sơn La run from an average low of 12°C54°F in January up to an average high of 33°C91°F in April. November is the driest month at 4 rainy days; July the wettest at 29 rainy days. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 106K
- Currency
- VND
- Language
- Vietnamese
- Time zone
- Bangkok
Best time to visit
The most pleasant weather falls in October, November, and December, offering a perfect balance of comfortable temperatures and clear skies.
Rain character
Tropical Downpours: Expect intense bursts of rain during wetter months. Pack quick-drying footwear and a compact umbrella.
Day-to-night swing
The Daypack Trap: Beware the "noon illusion". In months like April, crisp sunny days drop off a cliff by <span class="val-c">12°C</span><span class="val-f">22°F</span> at sunset. Always carry an evening layer.
Seasonality Profile
Humid Subtropical: Sweltering, wet summers accompanied by mild, drier winters.
Evening vibe
Seasonal Terraces: During the more temperate months, the city opens up with lively outdoor terraces. For the rest of the year, expect to dine indoors.
Sightseeing stamina
Summer Heat Fatigue: Midday heat in April and May is intense. Pack high-SPF sunscreen and a wide-brimmed hat.
Average temperatures, sunshine, and rainfall
Average monthly weather in Sơn La, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. Nov is typically driest at 4 rainy days (26mm); Jul the wettest at 29 rainy days (388mm).
| Month | Average high | Average low | Daily sunshine | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 22°C / 71°F | 12°C / 54°F | 8h | 6 | 17mm |
| Feb | 26°C / 79°F | 15°C / 59°F | 9h | 5 | 23mm |
| Mar | 29°C / 83°F | 17°C / 63°F | 9h | 7 | 39mm |
| Apr | 33°C / 91°F | 21°C / 70°F | 10h | 12 | 98mm |
| May | 31°C / 88°F | 22°C / 72°F | 10h | 21 | 204mm |
| Jun | 30°C / 85°F | 23°C / 73°F | 8h | 27 | 392mm |
| Jul | 30°C / 85°F | 23°C / 73°F | 10h | 29 | 388mm |
| Aug | 29°C / 84°F | 22°C / 72°F | 8h | 28 | 397mm |
| Sep | 29°C / 83°F | 22°C / 71°F | 9h | 21 | 234mm |
| Oct | 28°C / 82°F | 20°C / 67°F | 10h | 9 | 73mm |
| Nov | 25°C / 77°F | 16°C / 62°F | 9h | 4 | 26mm |
| Dec | 23°C / 73°F | 14°C / 57°F | 8h | 5 | 16mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Sơn La?
October is the sunniest month in Sơn La, averaging 10 hours of sunshine a day. Pack sunglasses and high-SPF sunscreen.
What clothes should I pack for Sơn La?
Your packing list depends entirely on when you travel. Temperatures in Sơn La swing from an average low of 12°C54°F in January up to 33°C91°F in April. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Sơn La?
Sơn La gets rain on about 174 days a year, with July being the wettest. If you're traveling then, pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Sơn La with Packola.
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