Assam GK Section
Weather, Rainfall & Temperature
Compiled on 2026-01-18
Assam experiences a humid tropical monsoon climate with four clear seasons, intense rainfall gradients and six agro-climatic zones.
Agro-climatic zones
North Bank Plains Zone
- Udalguri
- Darrang
- Sonitpur
- Biswanath
- Lakhimpur
- Dhemaji
Upper Brahmaputra Valley Zone
- Biswanath
- Jorhat
- Dibrugarh
- Dhemaji
- Golaghat
- Charaideo
- Lakhimpur
- Majuli
- Sivasagar
- Tinsukia
Central Brahmaputra Valley Zone
- Morigaon
- Nagaon
Lower Brahmaputra Valley Zone
- Kamrup
- Bongaigaon
- Nalbari
- Barpeta
- Kokrajhar
- Chirang
- Baksa
- Dhubri
- Goalpara
Barak Valley Zone
- Cachar
- Karimganj
- Hailakandi
Hills Zone
- Karbi Anglong
- North Cachar Hills
Seasons
Summer
Hot and humid with temperatures around 35–38°C and frequent showers
Monsoon
South-west monsoon arrives by the third week of June; afternoons often see Bordoicila thunderstorms
Autumn
Pleasant transition season popular with travelers
Winter
Cool (6–8°C) with foggy mornings and scant rainfall
Spring
Moderate temperatures aided by Nor'westers that keep the mercury low
Temperature profile
- Average January temperature20°C
- Average May temperature30°C
- Max plains temperature32°C
- Minimum plains temperature8°C
- Average temperature in Guwahati25°C
Rainfall notes
- Average annual rainfall ranges from about 70 inches (west) to 120 inches (east), with nearly 180 cm falling during the June–September monsoon (80% of the total).
- The remaining rainfall arrives via January westerlies and March–April nor'westers.
- Rain-shadow zones south of the Meghalaya Plateau—such as southeast Kamrup, southern Nagaon and the Diphu-Nambor stretch—receive near 100 cm annually.
- Heaviest rainfall (>200 cm) is recorded in Tinsukia, Dibrugarh, Dhemaji, Lakhimpur and the Himalayan foothills, while the western Karbi Anglong, North Cachar Hills and Barak plains also cross 200 cm.