Climate Insights for Chhātak

Sunamganj, Sylhet Division, Bangladesh

Hottest
September
32°C peak
Coldest
January
12°C low
Wettest
July
851mm rain
Best to Visit
January, February, November
Mild temps & low rain

Climate Overview

The climate in Chhātak is warm and mild. The average annual temperature is 25°C and approximately 4424mm of precipitation falls per year. July is the wettest month, receiving around 851mm of rainfall. Chhātak is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, August, July. The coldest months are January, December, February, when temperatures can drop to 12°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 24° Average: 17° Min: 12° Feb Max: 26° Average: 20° Min: 14° Mar Max: 29° Average: 23° Min: 18° Apr Max: 30° Average: 26° Min: 22° May Max: 31° Average: 27° Min: 24° Jun Max: 31° Average: 28° Min: 26° Jul Max: 32° Average: 28° Min: 26° Aug Max: 32° Average: 29° Min: 26° Sep Max: 32° Average: 29° Min: 26° Oct Max: 31° Average: 27° Min: 24° Nov Max: 29° Average: 23° Min: 18° Dec Max: 25° Average: 19° Min: 14°
Max
Average
Min

Chhātak sees moderate temperature variation throughout the year, ranging from 12°C to 32°C. The warmest month is September, when average highs reach 32°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 12°C and an average of 17°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 4°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm 550mm 600mm 650mm 700mm 750mm 800mm 850mm 900mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 11mm Feb Precipitation: 30mm Mar Precipitation: 122mm Apr Precipitation: 477mm May Precipitation: 588mm Jun Precipitation: 839mm Jul Precipitation: 851mm Aug Precipitation: 723mm Sep Precipitation: 470mm Oct Precipitation: 267mm Nov Precipitation: 22mm Dec Precipitation: 23mm
Precipitation

Chhātak is a very wet location, receiving approximately 4424mm of precipitation annually, which averages out to around 369mm per month. The wettest month is July, averaging 851mm of rainfall. June and August also tend to see above-average precipitation. The driest month is January, with just 11mm. That's 841mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 7km/h Feb Wind Speed: 7km/h Mar Wind Speed: 9km/h Apr Wind Speed: 9km/h May Wind Speed: 9km/h Jun Wind Speed: 9km/h Jul Wind Speed: 9km/h Aug Wind Speed: 9km/h Sep Wind Speed: 8km/h Oct Wind Speed: 7km/h Nov Wind Speed: 6km/h Dec Wind Speed: 6km/h
Wind Speed

Chhātak is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Chhātak, which began on March 20, 2026. Chhātak is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in September at around 32°C, while the coldest stretch bottoms out in January near 12°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 18 to 31°C. Rainfall is heavy, totalling around 1188mm across the season with a monthly average of 396mm. Winds are generally light, averaging 9km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 26 to 32°C. Rainfall is heavy, totalling around 2413mm across the season with a monthly average of 804mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 18 to 32°C. Rainfall is heavy, totalling around 759mm across the season with a monthly average of 253mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 12 to 26°C. Rainfall is relatively light, with around 64mm over the season and a monthly average of 21mm. Winds are generally light, averaging 7km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 17°
Feb 20°
Mar 23°
Apr 26°
May 27°
Jun 28°
Jul 28°
Aug 29°
Sep 29°
Oct 27°
Nov 23°
Dec 19°

The best time to visit Chhātak is during January, February, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 21mm per month. By contrast, September can be uncomfortably hot with temperatures reaching 32°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Chhātak based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
12 °C
24 °C
7 km/h
11 mm
0 cm
Feb
14 °C
26 °C
7 km/h
30 mm
0 cm
Mar Current
18 °C
29 °C
9 km/h
122 mm
0 cm
Apr
22 °C
30 °C
9 km/h
477 mm
0 cm
May
24 °C
31 °C
9 km/h
588 mm
0 cm
Jun
26 °C
31 °C
9 km/h
839 mm
0 cm
Jul
26 °C
32 °C
9 km/h
851 mm
0 cm
Aug
26 °C
32 °C
9 km/h
723 mm
0 cm
Sep
26 °C
32 °C
8 km/h
470 mm
0 cm
Oct
24 °C
31 °C
7 km/h
267 mm
0 cm
Nov
18 °C
29 °C
6 km/h
22 mm
0 cm
Dec
14 °C
25 °C
6 km/h
23 mm
0 cm
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Metric (°C, km/h)