Photo: Stefan Fussan · CC BY-SA 4.0 · Wikimedia Commons
PhōnsavanReport this photo · linked, not stored
PhōnsavanReport this photo · linked, not stored
Climate guideThirty-year normals for Phōnsavan
Phōnsavan climate by month
Monsoon-influenced humid subtropical · CwaBest Jan–Feb · Dec
Annual mean20°day and night
Seasonal swing8°warmest vs coolest
Precipitation1,422 mm142 wet days a year
19.45° N, 103.19° EElevation 1,106 mUTC+7 · Indochina Time
When to goPhōnsavan · weather score
Best timeJan–Feb · Dec
October: high / low24° / 16°
iSummary
What the weather is like
Phōnsavan has a monsoon-influenced humid subtropical climate (Köppen Cwa): a dry winter and a wetter summer.
The warmest month is April, when afternoons average 27° and nights 17°. December is the coolest month, with highs of 21° and lows of 9°. The difference between the warmest and the coolest month is about 8°, a small seasonal swing typical of places tempered by the sea.
About 1,422 mm of precipitation falls in an average year. August is the wettest month (282 mm, 23 wet days) and February the driest (14 mm, 2 wet days). Cloud cover ranges from 20% in February to 77% in June.
Compared with Vientiane, the capital, Phōnsavan is 6.7° cooler on a April afternoon and receives less precipitation over the year.
Year in figures
- Hottest afternoons
- 27° · April
- Coldest nights
- 9° · December
- Wettest month
- August
- Driest month
- February
- Clearest skies
- February · 20% cloud
- Longest day
- 13 h 18 min
- Shortest day
- 10 h 58 min
iiCharts
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columnsTemperature curve
Average high, lowDaylight
Hours between sunrise and sunset on the 15th of each monthiiiData table
Climate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 22° | 24° | 26° | 27° | 27° | 26° | 26° | 26° | 25° | 24° | 23° | 21° |
| Average low | 10° | 12° | 14° | 17° | 19° | 20° | 19° | 19° | 18° | 16° | 12° | 9° |
| Precipitation | 9 mm | 14 mm | 49 mm | 124 mm | 179 mm | 210 mm | 303 mm | 282 mm | 156 mm | 74 mm | 16 mm | 6 mm |
| Wet days (≥1 mm) | 2.5 | 1.7 | 6.2 | 10.9 | 18.2 | 18.5 | 21.4 | 23 | 19.8 | 12.2 | 5.2 | 2.4 |
| Cloud cover | 22% | 20% | 22% | 32% | 57% | 77% | 76% | 73% | 56% | 40% | 28% | 23% |
| Daylight | 11h 05 | 11h 30 | 12h 01 | 12h 35 | 13h 03 | 13h 18 | 13h 12 | 12h 48 | 12h 16 | 11h 43 | 11h 14 | 10h 58 |
| Month score | 94 | 96 | 80 | 65 | 49 | 42 | 44 | 47 | 55 | 67 | 88 | 94 |
ivMonth by month
Phōnsavan in every month
January94
22° / 10°
9 mm · 2.5 wet days
February96
24° / 12°
14 mm · 1.7 wet days
March80
26° / 14°
49 mm · 6.2 wet days
April65
27° / 17°
124 mm · 10.9 wet days
May49
27° / 19°
179 mm · 18.2 wet days
June42
26° / 20°
210 mm · 18.5 wet days
July44
26° / 19°
303 mm · 21.4 wet days
August47
26° / 19°
282 mm · 23 wet days
September55
25° / 18°
156 mm · 19.8 wet days
October67
24° / 16°
74 mm · 12.2 wet days
November88
23° / 12°
16 mm · 5.2 wet days
December94
21° / 9°
6 mm · 2.4 wet days