Situated on the Brahmaputra River, Guwahati is a port city in Assam, and hence, it experiences either a dry or wet climate throughout the year, with temperatures ranging from 11 ͦC to 36 ͦC.
Best time to visit Guwahati
October-April is the best time to visit Guwahati.
Temperature of Guwahati during different seasons
(1) Guwahati in Summer
April and May are the summer months. During the daytime,
temperatures touch nearly 36⁰C. However, the nights are a bit bearable.
This is not such a great time to take a trip but in April you can witness the
celebration of Rongali or Bohag Bihu, a harvest festival where you can partake
in the community feasts.
Places to see at this
time
Summers is the off-season in Guwahati, so if you hate crowds
(or want to save some money) then this would be an ideal time to hit some
famous sightseeing points at leisure such as Kamakhya Mandir, Umananda Temple, and Dighli Pukri.
Kamakhya Mandir

Things to do
Angling: The Jia Bhorili River provides ample opportunities
to fish. The best time for angling is between November and April.
Kayaking: Kayak
on the stretch of the Lohit River or take an adventurous ride from Charan Beel to Lohit River.
Ziplining: Zipline
across Barnadi River in Bogamati. The stretch is not quite long but is
thrilling.
Food to try to beat the heat
Masor Tenga
A light dish perfect for summer, the dish is made of fish and slices of dried mangosteen.
Poita bhat
Cooked rice is soaked in water and fermented overnight. It is then served the next day (as breakfast) along with onion, mashed potato, mustard oil, chilli, and curd. This dish is cooling to the stomach.
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(2) Guwahati in Monsoon
The monsoons last from June to September. It receives moderate to heavy rainfall during these months and is not an ideal time to visit. However, Guwahati enjoys a moderate climate during this season.
Places to see at this time
Guwahati has many places where you can spend considerable time indoors, such as museums, a planetarium, and a science center.