The best time to visit Northeast India & Himalayas is Nov–Mar. Month by month, the verdicts rate Oct–Apr as comfortable on both daytime heat and rainfall — 7 months in all.
Among the wettest places on earth Jun–Sep
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 17.8 | 64 | 4% | Go |
| February | 20.6 | 69 | 7% | Go |
| March | 24.9 | 77 | 16% | Go |
| April | 27.6 | 82 | 39% | Go |
| May | 28.1 | 83 | 59% | Too wet |
| June | 27.8 | 82 | 81% | Too wet |
| July | 25.7 | 78 | 95% | Too wet |
| August | 25.5 | 78 | 92% | Too wet |
| September | 24.5 | 76 | 75% | Too wet |
| October | 23.2 | 74 | 24% | Go |
| November | 20.8 | 69 | 3% | Go |
| December | 18.5 | 65 | 2% | Go |
Verdict combines mean daytime high with rainy-day frequency. “Rainy days” is the share of days in the month with at least 1 mm of rain.
December is the driest month, with rain on 2% of days and daytime highs near 18.5°C (65°F). July is the wettest, at 95%. The warmest month is May at 28.1°C (83°F); the coolest is January at 17.8°C (64°F). The record rules out too wet in May–Sep.