Last 7 days
Today
28° / 20° High / Low (°C)
99% Humidity
100% Rain probability
Thunderstorm Condition
~19h Rain duration
What this means
In Kathmandu on 21 Jun 2026, rain is expected: 100% chance, up to 16.9 mm forecast (source: Open-Meteo).
A thunderstorm is expected today for around 19 hours — 100% probability, up to 16.9mm forecast. An umbrella is the right call.
Rain season
Kathmandu's monsoon runs June–September, delivering roughly 80% of the valley's annual rainfall. The Himalayas trap moisture from the Bay of Bengal, producing heavy afternoon downpours that clear by evening. Pre-monsoon thunderstorms in April–May are common. Winters are dry and often hazy; spring and autumn are the clearest and most pleasant seasons.
Elsewhere in Nepal