Sơn La Temperature by Month
The average annual maximum temperature in Sơn La, Sơn La province, Vietnam is 28°C (82°F), with daytime highs ranging from 22°C (72°F) in January to 31°C (88°F) in May. This page covers monthly averages, day-night differences, and how Sơn La compares to cities worldwide.
Sơn La Monthly Temperatures
Seasonal changes in Sơn La bring a little variety without extreme temperature swings. Nighttime lows range from 22°C (72°F) in May to 12°C (54°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Sơn La by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. May, the warmest month of the year, receives 205 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Sơn La vs Vietnam
The map below shows the annual temperature across Vietnam. You can also select individual months if you want to compare a specific time of year.
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Sơn La vs World: Temperature Compared
Sơn La's average annual maximum temperature is 28°C (82°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Sơn La?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Sơn La, January is the coolest month, with average highs of 22°C (72°F) and humidity around 77% — considered high. In May, the warmest month, temperatures average 31°C (88°F) with 77% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Sơn La's weather — including monthly rainfall, sunshine hours, and humidity — visit our Sơn La climate page.
