The hottest month in Kathmandu is typically June, with daytime highs averaging around 26.6°C (80°F), based on 10 years of historical weather data. Overnight lows during this period average near 19.1°C (66°F).

What is the coldest month in Kathmandu?

The coldest month in Kathmandu is typically January, with overnight lows averaging around 5.2°C (41°F) and daytime highs near 16.7°C (62°F), based on 10 years of historical weather data.

When does the rainy season start in Kathmandu?

Kathmandu has a clearly defined rainy season running roughly from June to August, based on 10 years of historical rainfall data. July is typically the wettest month, averaging about 896 mm of rain. Outside this window, rainfall is much lighter for the rest of the year.

What's the best time of year to visit Kathmandu?

The best time to visit Kathmandu is typically March to April, when daytime highs average a comfortable 23.9°C (75°F). Rainfall during this window averages around 66 mm, well below the 896 mm seen in July, the wettest month. This is based on 10 years of historical weather data.

Atmospheric Details

Wind

4 km/h

SSE · Light Breeze · Max 6 km/h

Humidity

98 %

High · feels muggy

UV Index

Very High

Visibility

5 km

Moderate

Pressure

874 hPa

Low · change likely

Dew Point

20°C

Very humid

Today vs Normal

28°C+3° above normal

The long-term average high for today is 25°C.

2 of the last 19 days with published data ran above normal.

That's a break from the pattern - today's forecast runs above normal even though the recent stretch mostly ran below.

Red = above normal, blue = at or below · last 12 days

Air Quality

Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Health & Activity Advice

⚠ Limit Outdoor Time

UV index is 8 today — very high. Limit sun exposure around midday, apply SPF 30+ every two hours, and seek shade when possible.

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.