Temperature
Hot by day, warm at night.
Not the best time: Humid air is the main limitation.

Hot by day, warm at night.
It rains on most days, with a mix of brief and longer spells. About 26 wet days, more than in most months.
Cloudier spells limit sunshine.
Very humid air is a major factor this month.
In September, afternoons feel about 97° and nights feel near 87°.
Overcast skies this month.
Calm winds are typical in September.
September late afternoons are around 85°F, easing to about 82°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 73 | 53 | 0.5 | 3 | 9.7 | 79 |
| Feb | 79 | 58 | 0.9 | 4 | 10.2 | 72 |
| Mar | 86 | 65 | 2.4 | 8 | 11.0 | 65 |
| Apr | 86 | 70 | 6.5 | 19 | 9.9 | 75 |
| May | 86 | 74 | 12.5 | 27 | 8.8 | 82 |
| Jun | 87 | 77 | 21.0 | 29 | 7.5 | 86 |
| Jul | 88 | 78 | 26.3 | 30 | 6.8 | 87 |
| Aug | 89 | 78 | 24.1 | 30 | 7.5 | 86 |
| Sep | 87 | 77 | 15.3 | 26 | 8.3 | 86 |
| Oct | 86 | 72 | 5.2 | 14 | 9.7 | 84 |
| Nov | 81 | 64 | 0.7 | 2 | 10.1 | 80 |
| Dec | 76 | 56 | 0.4 | 2 | 9.7 | 80 |
Similar climates
Want a side-by-side climate view? Compare Guwahati with Mumbai.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology