Weather radar Vientiane
Real-time precipitation radar · Vientiane · Laos
Vientiane climate table – average temperature, precipitation & sunshine hours
The climate table for Vientiane shows long-term monthly averages (2000–2023): average high and average low temperature in °C, monthly precipitation (mm), rainy days and sunshine hours per month. Data source: ERA5 reanalysis (ECMWF) via the WDTEC Climate Archive.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 29.6° | 32.1° | 34.9° | 36.8° | 34.9° | 33.6° | 32.6° | 32.5° | 32° | 32.4° | 31.6° | 29.7° |
| Avg low (°C) | 16.5° | 19.2° | 22.8° | 25.4° | 26.2° | 26.2° | 26.1° | 25.8° | 25.5° | 24.5° | 21.7° | 18.2° |
| Precipitation (mm) | 7 | 31 | 22 | 52 | 165 | 273 | 348 | 343 | 388 | 99 | 19 | 4 |
| Rainy days | 1 | 3 | 5 | 8 | 19 | 24 | 26 | 25 | 25 | 11 | 4 | 1 |
| Sunshine hours | 312 | 288 | 329 | 333 | 308 | 270 | 244 | 248 | 230 | 299 | 284 | 305 |
| Humidity | 68% | 68% | 67% | 66% | 75% | 82% | 84% | 85% | 86% | 79% | 73% | 70% |
Best time to visit Vientiane
The best time to visit Vientiane is typically January. In this month the average high is 29.6°C, precipitation is 7 mm and sunshine duration is 312 hours. The annual average high is 32.7°C, total annual precipitation is 1751 mm (152 rainy days/year) and annual sunshine is 3450 hours.
Frequently asked questions about the weather in Vientiane
How up to date is the weather radar for Vientiane?
The weather radar for Vientiane is updated every 5 minutes with new radar data from the OPERA composite radar. A 2-hour forecast animation is also available. Rainfall probability, wind gusts and UV index are available up to 14 days in advance.
What weather data is available for Vientiane?
Besides the rain radar, RadarWeather provides for Vientiane: rainfall probability, thunderstorm warning (CAPE index), wind gusts, UV index, air pressure, humidity, dew point, sunshine hours, snow line and a 14-day forecast based on ICON-D2, ECMWF IFS and GFS.
When are thunderstorms expected in Vientiane?
The thunderstorm potential for Vientiane is calculated from the CAPE index and lightning potential. Active storm cells and severe weather warnings are visible on the radar map in real time. Thunderstorm warnings are issued automatically as soon as storm cells are detected near Vientiane.
What is the climate like in Vientiane?
Vientiane has an annual average high of 32.7°C. The warmest month is April (avg high 36.8°C), the coldest January (avg low 16.5°C). The wettest month is September with 388 mm, the driest December with 4 mm. Total annual precipitation is 1751 mm (152 rainy days). Annual sunshine is 3450 hours.
Weather radar near Vientiane
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