Weather in Phonsavan - 14-day forecast

Detailed weather forecast for Phonsavan, Laos: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Phonsavan

today🌧️ 24°💧 19.9 mm

Sun🌧️ 25°💧 20.3 mm

Mon🌧️ 24°💧 20.8 mm

Tue🌧️ 25°💧 22 mm

Wed🌧️ 24°💧 44.8 mm

Thu🌧️ 26°💧 2.1 mm

Fri☁️ 25°💧 1.9 mm

Sat🌤️ 26°💧 0.3 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Monday 7 Sept in Phonsavan, the forecast high is 24°C. Typical daytime temperatures at this time of year range from 25°C to 28°C, so it will be exceptionally cool. It is cooler than 95% of similar days.

Saturday 5 Sept

24°Cexceptionally cool

usually 25°C–28°C

cooler than 93% of similar days

night: cooler than usual rain: exceptionally wet wind: exceptionally light

Sunday 6 Sept

25°Ccooler than usual

usually 25°C–28°C

cooler than 88% of similar days

night: near normal rain: exceptionally wet wind: typical

Monday 7 Sept

24°Cexceptionally cool

usually 25°C–28°C

cooler than 95% of similar days

night: near normal rain: exceptionally wet wind: exceptionally light

Tuesday 8 Sept

25°Ccooler than usual

usually 25°C–28°C

cooler than 89% of similar days

night: warmer than usual rain: exceptionally wet wind: exceptionally light

Wednesday 9 Sept

24°Cexceptionally cool

usually 25°C–28°C

cooler than 92% of similar days

night: near normal rain: exceptionally wet wind: typical

Thursday 10 Sept

26°Cnear normal

usually 25°C–28°C

night: cooler than usual rain: typical rainfall wind: exceptionally strong

Friday 11 Sept

25°Ccooler than usual

usually 25°C–28°C

cooler than 78% of similar days

night: exceptionally cool rain: typical rainfall wind: exceptionally strong

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 27°C by day. The coolest year was 1986 (24°C) and the warmest was 2009 (33°C). The current forecast averages 25°C - lower than in 96% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Phonsavan

Phonsavan - 14-day weather forecast infographic

Day-by-day forecast for Phonsavan

Saturday5 September 2026

🌧️24°moderate rain

sunrise 05:53 · sunset 18:19 · night 18° · evening 21° · rain 19.94 mm · humidity 84% · wind 1 m/s · clouds 62%

Sunday6 September 2026

🌧️25°moderate rain

sunrise 05:53 · sunset 18:18 · night 19° · evening 21° · rain 20.34 mm · humidity 81% · wind 1 m/s · clouds 85%

Monday7 September 2026

🌧️24°moderate rain

sunrise 05:53 · sunset 18:17 · night 19° · evening 21° · rain 20.8 mm · humidity 89% · wind 1 m/s · clouds 100%

Tuesday8 September 2026

🌧️25°moderate rain

sunrise 05:53 · sunset 18:17 · night 20° · evening 20° · rain 21.98 mm · humidity 90% · wind 1 m/s · clouds 83%

Wednesday9 September 2026

🌧️24°heavy rain

sunrise 05:53 · sunset 18:16 · night 19° · evening 20° · rain 44.82 mm · humidity 92% · wind 1 m/s · clouds 100%

Thursday10 September 2026

🌧️26°light rain

sunrise 05:54 · sunset 18:15 · night 18° · evening 20° · rain 2.07 mm · humidity 66% · wind 3 m/s · clouds 72%

Friday11 September 2026

☁️25°broken clouds

sunrise 05:54 · sunset 18:14 · night 16° · evening 18° · rain 1.89 mm · humidity 52% · wind 3 m/s · clouds 61%

Saturday12 September 2026

🌤️26°scattered clouds

sunrise 05:54 · sunset 18:13 · night 15° · evening 17° · rain 0.33 mm · humidity 42% · wind 3 m/s · clouds 50%

Sunday13 September 2026

☁️27°broken clouds

sunrise 05:54 · sunset 18:12 · night 18° · evening 19° · rain 0.12 mm · humidity 41% · wind 2 m/s · clouds 72%

Monday14 September 2026

☀️27°clear sky

sunrise 05:54 · sunset 18:11 · night 16° · evening 19° · rain 0.42 mm · humidity 40% · wind 2 m/s · clouds 81%

Tuesday15 September 2026

☁️26°overcast clouds

sunrise 05:54 · sunset 18:10 · night 17° · evening 19° · rain 0.45 mm · humidity 52% · wind 2 m/s · clouds 90%

Wednesday16 September 2026

🌧️23°light rain

sunrise 05:55 · sunset 18:09 · night 18° · evening 19° · rain 2.52 mm · humidity 82% · wind 2 m/s · clouds 95%

Thursday17 September 2026

☁️26°overcast clouds

sunrise 05:55 · sunset 18:09 · night 16° · evening 19° · rain 8.4 mm · humidity 53% · wind 2 m/s · clouds 100%

Friday18 September 2026

🌧️26°light rain

sunrise 05:55 · sunset 18:08 · night 18° · evening 19° · rain 0.3 mm · humidity 59% · wind 3 m/s · clouds 94%

Saturday19 September 2026

☁️27°overcast clouds

sunrise 05:55 · sunset 18:07 · night 18° · evening 20° · rain 11.43 mm · humidity 51% · wind 2 m/s · clouds 98%

Sunday20 September 2026

🌧️20°light rain

sunrise 05:55 · sunset 18:06 · night 19° · evening 19° · rain 2.31 mm · humidity 98% · wind 1 m/s · clouds 98%

UV index in Phonsavan - is it safe to sunbathe?

Today the UV index in Phonsavan is 9 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Nearby and related places

Vang ViengLuang PrabangPakxanXam NeuaVientianeMuang XayPakxé

FAQ - Phonsavan weather

What is the weather like in Phonsavan today?

Today it is about 24° during the day and 18° at night, moderate rain.

How far ahead can I check the forecast for Phonsavan?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.