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30-year normals (1991-2020)
Kathmandu has a subtropical highland climate, classified as Cwa in the Köppen system. The warmest month is May with an average high of 26°C, while the coldest month is January with lows dropping to 7°C. The annual temperature range of 19°C reflects moderate seasonal variation.
The driest month is December with only 3 rain days and 19mm of precipitation. For travellers, December through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 70% to 70% throughout the year.
Based on temperature and rainfall data, the best months to visit Kathmandu are December, January, February. These months offer the most comfortable temperatures with relatively low rainfall, ideal for sightseeing and outdoor activities.
Full Best Time to Visit GuideWarmest Month
26°C
May
Coldest Month
7°C
January
Driest Month
3 days
December
Annual Range
19°C
7° to 26°
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 16°C | 7°C | 6 | 10h | View |
| February | 18°C | 8°C | 8 | 10h | View |
| March | 22°C | 11°C | 10 | 11h | View |
| April | 25°C | 14°C | 13 | 12h | View |
| May | 26°C | 17°C | 22 | 12h | View |
| June | 26°C | 19°C | 27 | 9h | View |
| July | 25°C | 20°C | 31 | 6h | View |
| August | 25°C | 20°C | 31 | 7h | View |
| September | 25°C | 19°C | 28 | 8h | View |
| October | 23°C | 15°C | 15 | 10h | View |
| November | 20°C | 12°C | 6 | 10h | View |
| December | 17°C | 8°C | 3 | 10h | View |
January
6 rain days, 10h sun
February
8 rain days, 10h sun
March
10 rain days, 11h sun
April
13 rain days, 12h sun
May
22 rain days, 12h sun
June
27 rain days, 9h sun
July
31 rain days, 6h sun
August
31 rain days, 7h sun
September
28 rain days, 8h sun
October
15 rain days, 10h sun
November
6 rain days, 10h sun
December
3 rain days, 10h sun
Kathmandu in May
Data Sources for Kathmandu
Climate normals represent 30-year averages (1991-2020). Individual years may vary.