Common information
- Country
- Laos
- Population
- 37 507
Weather, climate, temperature by months in Phonsavan
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 27 | 35 | 37 | 32 | 30 | 32 | 36 | 33 | 32 | 30 | 28 | 28 | 37 |
| Average high, °C | 26 | 25 | 23 | 21 | 24 | 26 | 26 | 29 | 28 | 27 | 25 | 26 | 26 |
| Average temperature, °C | 23 | 22 | 19 | 16 | 16 | 18 | 21 | 23 | 24 | 24 | 24 | 23 | 21 |
| Average low, °C | 18 | 16 | 13 | 8 | 7 | 10 | 13 | 16 | 19 | 20 | 19 | 20 | 15 |
| Record low, °C | 12 | 7 | 3 | -2 | -2 | 0 | 5 | 12 | 16 | 15 | 10 | 16 | -2 |
| Rain, days | 9 | 4 | 2 | 0 | 0 | 0 | 2 | 5 | 5 | 11 | 16 | 15 | 69 |
| Average precipitation, mm. | 246 | 117 | 40 | 13 | 18 | 27 | 49 | 120 | 217 | 305 | 302 | 380 | 1833 |
| Relative humidity, % | 84 | 80 | 76 | 75 | 74 | 72 | 70 | 73 | 80 | 84 | 85 | 87 | 78 |
| Wind speed, km/h | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 5 | 6 |
| Day Length, часов | 13 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 13 | 12 |
| Dew point, °C | 20 | 18 | 15 | 12 | 12 | 13 | 15 | 18 | 20 | 21 | 21 | 21 | 204 |
| Growing degree-day, °C | 387 | 357 | 267 | 192 | 192 | 223 | 326 | 387 | 428 | 414 | 422 | 409 | 4003 |
| Solar radiation, global, Mj/m2 | 17 | 16 | 16 | 15 | 16 | 18 | 20 | 20 | 18 | 16 | 15 | 15 | 17 |