Kathmandu is at its most pleasant from February to mid April, and again from late October to December. For sun, aim for early and mid October; for walking, go from mid November to mid March.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
The sun season here falls in early and mid October. It peaks in early October, at 55. The weakest stretch is from late December to early February, when it drops to 1, mostly because it is too cool. The clearest skies come in November, when the sky is typically 28% covered at midday (mostly clear).
For being outside, go from February to mid April, with a second spell from late October to December. It peaks in early December, at 80. Avoid mid July to early September for this: it falls to 16, mostly because it is too hot.
The walking season here runs from mid November to mid March. It peaks in mid January, at 85. The weakest stretch is from June to mid September, when it drops to 3, mostly because it is too warm.
The year, measured
The average temperature in Kathmandu over the whole year is 20°C. June is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 7°C. The rainy (wet) season in Kathmandu runs from May to September, peaking in July with a 47% chance of rain on a given day. The dry season is October to April; November is the driest month, at 6%. Winds in Kathmandu are highest in April, averaging 2.1 m/s (8 km/h), and lightest in January, at 1.3 m/s (5 km/h). The prevailing wind is from the SW. The clearest skies in Kathmandu come in November, when the sky is typically 32% covered; July is the cloudiest month, at 82%.
Month by month Kathmandu climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 16°C | 7°C | 15°C | 7% | 42% | 1.3 m/s | 49 | 2 | 84 |
| February | 19°C | 9°C | 18°C | 24% | 40% | 1.6 m/s | 72 | 10 | 74 |
| March | 24°C | 13°C | 22°C | 19% | 40% | 2.0 m/s | 72 | 26 | 55 |
| April | 27°C | 17°C | 26°C | 25% | 44% | 2.1 m/s | 60 | 43 | 28 |
| May | 27°C | 19°C | 28°C | 27% | 57% | 2.1 m/s | 51 | 48 | 20 |
| June | 28°C | 22°C | 31°C | 41% | 70% | 1.9 m/s | 24 | 52 | 4 |
| July | 28°C | 23°C | 31°C | 47% | 82% | 1.8 m/s | 21 | 48 | 4 |
| August | 28°C | 22°C | 32°C | 42% | 78% | 1.7 m/s | 18 | 50 | 3 |
| September | 27°C | 21°C | 30°C | 36% | 76% | 1.6 m/s | 28 | 52 | 8 |
| October | 26°C | 18°C | 27°C | 20% | 50% | 1.4 m/s | 53 | 49 | 21 |
| November | 22°C | 13°C | 22°C | 6% | 32% | 1.3 m/s | 74 | 22 | 59 |
| December | 18°C | 8°C | 17°C | 13% | 34% | 1.3 m/s | 67 | 8 | 77 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Kathmandu weather by season
Year round, Kathmandu has days of about 16°C at their warmest in January, its coolest month, and 28°C in June, its warmest; the coolest hours of the day run from 7°C to 23°C through the year, and the average temperature over the year is 20°C around the clock. Rain is most likely around July and least likely around November. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Kathmandu weather in winterDecember to February
Winter in Kathmandu has typical daily highs of about 18°C and lows of about 8°C, with a 15% chance of rain on a given day.
Kathmandu weather in springMarch to May
Spring in Kathmandu has typical daily highs of about 26°C and lows of about 17°C, with a 23% chance of rain on a given day.
Kathmandu weather in summerJune to August
Summer in Kathmandu has typical daily highs of about 28°C and lows of about 22°C, with a 43% chance of rain on a given day.
Kathmandu weather in autumnSeptember to November
Autumn in Kathmandu has typical daily highs of about 25°C and lows of about 17°C, with a 20% chance of rain on a given day.
When is the rainy season in Kathmandu?
The rainy (wet) season in Kathmandu runs from May to September, peaking in July with a 47% chance of rain on a given day. The dry season is October to April; November is the driest month, at 6%.
What time of year is Kathmandu windiest?
Winds in Kathmandu are highest in April, averaging 2.1 m/s (8 km/h), and lightest in January, at 1.3 m/s (5 km/h). The prevailing wind is from the SW.
What is the average temperature in Kathmandu year round?
The average temperature in Kathmandu over the whole year is 20°C. June is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 7°C.
Where to go instead in mid August, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.