Weather in Guwahati in August

The month to avoid. August is the month most people should skip in Guwahati. You should expect rain on 26 days of the month, which is more days wet than dry.

August ranks 12 of 12 — near the bottom of Guwahati's year. January is the month that works, and the swing between the two is 69 points, which is a different holiday rather than a slightly better one.

Rain on 26 of the month's 31 days, 9 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Natural fibres and a second shirt for the day. At 84% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: 12 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest August day reached 39.5 °C and the coldest night fell to 24 °C, and the wettest single day dropped 90 mm — roughly 31% of the month's rain in one day.

August is moderately variable: 123 mm in the driest year against 780 mm in the wettest, around an average of 286 mm. Roughly two Augusts in three land near that average, and the third does something else entirely.

Wind is light at 1.7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 84%, high enough to notice on the warm days without dominating them.

How August sits in the year

Temperatures hold steady either side: 34.5 °C in July, 34.3 here, 33.1 in September. Nothing about the timing within the month matters much.

Daylight in August

13.1 hours of daylight, losing 0.7 hours across the month. That is between Guwahati's extremes of 13.8 and 10.5 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 23.4 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Guwahati versus nearby

If Guwahati is one option among several, the nearby comparison is worth making. Dārjiling is a better bet in August — 14.2 °C cooler, 3 days more rain. Kolkata is a better bet in August — 3.3 °C cooler, 2 days more rain.

So: August is a compromise. January is 69 points better and is what Guwahati is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Guwahati

See all twelve months in Guwahati, or where else to go in August.