Weather in Kathmandu in January
Nepal · 20-year averages, January
Prime time. January is about as good as Kathmandu gets. Highs average 17.4 °C, lows 6.7 °C, and rain falls on 2 days — nothing in the month is working against you.
January ranks 5 of 12 in Kathmandu: past the worst of the year but short of November, which is the month to book if the dates are open.
Rain falls on only 2 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 17.4 °C days and 6.7 °C nights; the spread matters more here than any single number.
What the averages hide
The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest January day reached 23.6 °C and the coldest night fell to -0.4 °C, and the wettest single day dropped 29 mm — roughly 290% of the month's rain in one day.
This is the volatile part. January rainfall has ranged from 0 mm to 49 mm across the twenty years measured — a 49 mm spread around an average of 10 mm. The average is real but almost no individual January looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 4.7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 46%.
How January sits in the year
Temperatures hold steady either side: 18 °C in December, 17.4 here, 20.4 in February. Nothing about the timing within the month matters much.
Daylight in January
January sits at the dark end of Kathmandu's year — 10.6 hours of daylight against 13.9 at midsummer, gaining 0.4 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
An inland climate
Despite being inland, the year stays fairly even: 23.1 °C between the year's warmest afternoons and coldest nights. At 1317 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.
How busy it gets
Busy. Popular without being frantic; book the things you care about, improvise the rest.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
January in Kathmandu versus nearby
If Kathmandu is one option among several, the nearby comparison is worth making. Bharatpur is a better bet in January — 6.2 °C warmer, the same number of rain days. Pokhara is close enough to be a coin toss — 2.6 °C warmer, 1 day more rain.
So: January works, with November the better month by 12 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Kathmandu
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 17.4 | 6.7 | 2 | 10 | 46 | 10.6 | 88 |
| February | 20.4 | 8.8 | 2 | 17 | 43 | 11.2 | 97 |
| March | 24.8 | 12.4 | 4 | 21 | 37 | 12 | 94 |
| April | 28.8 | 16.1 | 7 | 36 | 37 | 12.8 | 79 |
| May | 29.8 | 18.5 | 15 | 89 | 49 | 13.5 | 59 |
| June | 29.1 | 20.4 | 22 | 170 | 66 | 13.9 | 56 |
| July | 26.4 | 20.2 | 27 | 280 | 85 | 13.7 | 61 |
| August | 25.7 | 19.9 | 26 | 238 | 87 | 13.2 | 65 |
| September | 24.6 | 18.7 | 21 | 169 | 86 | 12.4 | 65 |
| October | 23.1 | 15.5 | 7 | 45 | 74 | 11.5 | 87 |
| November | 20.4 | 11.8 | 0 | 3 | 62 | 10.8 | 100 |
| December | 18 | 8.4 | 1 | 5 | 52 | 10.4 | 92 |
See all twelve months in Kathmandu, or where else to go in January.
Planning the rest of the trip
- Flight time to Kathmandu how long you are actually in the air
- Kathmandu time zone and the difference from home
- Days until your trip count down to the departure date