Last 7 days
Today
25° / 23° High / Low (°C)
94% Humidity
100% Rain probability
Thunderstorm Condition
~24h Rain duration
What this means
In Biratnagar on 24 Sep 2026, rain is expected: 100% chance, up to 97.5 mm forecast (source: Open-Meteo).
A thunderstorm is expected today for around 24 hours — 100% probability, up to 97.5mm forecast. An umbrella is the right call.
Rain season
Biratnagar sits in the Terai lowlands near the Indian border, making it hotter and more humid than the hills. The southwest monsoon arrives in June and lasts through September, bringing intense heat-and-rain cycles. Winters are dry and cooler; summers before the monsoon are among the hottest in Nepal, regularly exceeding 38°C.
Elsewhere in Nepal