The bar chart below shows the average monthly peak daytime temperatures at Vientiane
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 29.1 | 31.4 | 34.1 | 35.5 | 33.5 | 32.5 | 32 | 31.4 | 31.5 | 31.1 | 29.9 | 28.3 |
°F | 84.3 | 88.5 | 93.4 | 95.8 | 92.3 | 90.4 | 89.6 | 88.6 | 88.6 | 88.1 | 85.9 | 83 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | 7 | 12 | 31 | 90 | 236 | 271 | 245 | 332 | 278 | 81 | 12 | 4 |
inches | 0.3 | 0.5 | 1.2 | 3.5 | 9.3 | 10.7 | 9.6 | 13.1 | 10.9 | 3.2 | 0.5 | 0.1 |
Rainy days | 3 | 3 | 6 | 10 | 18 | 21 | 21 | 24 | 20 | 10 | 3 | 2 |
Average annual rainfall in Vientiane: 1719.2mm (676.9 inches)
The bar chart below shows the average daily sunshine hours in Vientiane
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 8.9 | 8.5 | 7.9 | 8.2 | 7.1 | 5.5 | 5.3 | 4.9 | 5.4 | 8.1 | 8.4 | 8.9 |
The graph below shows the daily range of temperatures for each month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min °C | 16 | 18.3 | 21.2 | 23.7 | 24.3 | 24.8 | 24.6 | 24.4 | 24 | 22.7 | 19.4 | 15.8 |
Max °C | 29.4 | 31.7 | 34.5 | 35.8 | 33.8 | 32.7 | 32.2 | 31.6 | 31.7 | 31.4 | 30.2 | 28.7 |
Min °F | 60.8 | 64.9 | 70.1 | 74.6 | 75.7 | 76.6 | 76.3 | 75.9 | 75.1 | 72.8 | 66.9 | 60.4 |
Max °F | 72.9 | 77 | 82 | 85.5 | 84.2 | 83.7 | 83.1 | 82.4 | 82 | 80.6 | 76.6 | 72 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 24.3 | 24.1 | 24.9 | 26.5 | 28.5 | 29.5 | 29.4 | 29.3 | 29.1 | 28.6 | 27.4 | 25.5 |
°F | 75.7 | 75.3 | 76.8 | 79.7 | 83.3 | 85 | 84.8 | 84.7 | 84.3 | 83.4 | 81.4 | 77.9 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 5 | 4 |
mph | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
69% | 67% | 65% | 68% | 78% | 82% | 82% | 84% | 83% | 78% | 72% | 70% |
Hottest month: | April | 35.5°C 95.9°F |
---|---|---|
Driest month: | December | 4mm 0.2ins |
Sunniest month: | December | 8.9hrs |
Coldest month: | December | 28.3°C 82.9°F |
Wettest month: | August | 332mm 13.1ins |
Warmest sea: | June | 29.5°C 85.1°F |