Since 1 June 2026
690 mm
Same period 2025
635 mm
Rainy days (≥ 2.5 mm)
64 vs 48
Month by month
- Jun103 mm173 mm last year · 11 rainy days
- Jul253 mm207 mm last year · 25 rainy days
- Aug275 mm241 mm last year · 22 rainy days
- Sep59 mm14 mm last year · 6 rainy days
Teal = 2026, grey = 2025.
Last 30 days
8 Aug6 Sept
Quick answers
People often ask about Siwan monsoon
How much rain has Siwan district received this monsoon?
690 mm from 1 June to 6 Sept 2026 at the district centre, over 64 days with 2.5 mm or more. Last year the same period brought 635 mm.
Which was the wettest day of monsoon 2026 in Siwan?
5 Aug 2026, with about 40 mm at the district centre.
Answers are auto-built from the village's verified record. If something is wrong, residents can correct it after claiming the village.