Karnaphuli, Bangladesh experiences average highs of 30°C (86°F) and lows of 22°C (72°F) throughout the year. Rainfall is frequent, averaging about 13 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Karnaphuli, Bangladesh Weather & Climate 2026
Monthly climate averages for Karnaphuli, Bangladesh. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.9/10
Best: January, February, March, November, December
UV Index
7
High
Temperature 30°C / 22°C
Feels Like 34°C / 25°C
Rainy Days 13
Rainfall 139 mm
Sunshine 9 h
Humidity 80%
Wind Speed 10 km/h
Dew Point 22°C
Hottest Month
34°C
April
Avg Low24°C
Rain7days
Coldest Month
14°C
January
Avg High25°C
Rain1days
Driest Month
1days
January
Avg High25°C
Avg Low14°C
Windiest Month
13 km/h
April (Gusts 34)
Worst Time to Visit
Consider avoiding May, June, July, September due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 05:07
Daylight 13.5h
Sunset 18:38
Live conditions—
Karnaphuli on the map · live conditions
Karnaphuli, Bangladesh
- Continent
- Asia
- Country
- Bangladesh
- City
- Karnaphuli
- Population
- 203.7K
- Coordinates
- 22.69°, 92.23°
Seasonal Breakdown
Spring
Mar–May
Avg High 33°C
Avg Low 23°C
Rain 8 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 30°C
Avg Low 25°C
Rain 27 days/mo
Autumn
Sep–Nov
Avg High 30°C
Avg Low 23°C
Rain 15 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 26°C
Avg Low 16°C
Rain 1 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 25°C / 14°C . Feb: 28°C / 16°C . Mar: 32°C / 20°C . Apr: 34°C / 24°C . May: 33°C / 25°C . Jun: 31°C / 25°C . Jul: 30°C / 25°C . Aug: 30°C / 25°C . Sep: 31°C / 25°C . Oct: 30°C / 24°C . Nov: 28°C / 20°C . Dec: 26°C / 17°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 6 mm. Feb: 8 mm. Mar: 25 mm. Apr: 48 mm. May: 170 mm. Jun: 359 mm. Jul: 309 mm. Aug: 301 mm. Sep: 224 mm. Oct: 168 mm. Nov: 33 mm. Dec: 15 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 75%. Feb: 68%. Mar: 66%. Apr: 72%. May: 78%. Jun: 87%. Jul: 87%. Aug: 88%. Sep: 87%. Oct: 87%. Nov: 82%. Dec: 80%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 8 km/h . Feb: 9 km/h . Mar: 11 km/h . Apr: 13 km/h . May: 12 km/h . Jun: 12 km/h . Jul: 13 km/h . Aug: 11 km/h . Sep: 9 km/h . Oct: 7 km/h . Nov: 7 km/h . Dec: 7 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 10h. Mar: 11h. Apr: 11h. May: 10h. Jun: 8h. Jul: 7h. Aug: 7h. Sep: 8h. Oct: 9h. Nov: 9h. Dec: 9h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 6. Feb: UV 7. Mar: UV 8. Apr: UV 9. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 7. Sep: UV 7. Oct: UV 7. Nov: UV 6. Dec: UV 5.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 19 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Apr 2025 · 34°C | Apr · 34°C |
| Coldest month | Jan 2025 · 15°C | Jan · 14°C |
| Wettest month | Jun 2025 · 490 mm | Jun · 359 mm |
| Windiest month | Jul 2025 · 14 km/h | Apr · 13 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Excellent April
Poor May
Poor June
Wet July
Wet August
Wet September
Wet October
Poor November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 25°C / 14°C | 26°C / 15°C | 1days (6 mm) Excellent | 9.7h Good | 75% Muggy | 5.8 High | Excellent | View Details |
| February best | 28°C / 16°C | 29°C / 17°C | 1days (8 mm) Excellent | 10h Excellent | 68% Muggy | 6.8 High | Excellent | View Details |
| March best | 32°C / 20°C | 34°C / 23°C | 3days (25 mm) Excellent | 10.7h Excellent | 66% Muggy | 7.9 Very High | Excellent | View Details |
| April | 34°C / 24°C | 38°C / 28°C | 7days (48 mm) Good | 11.1h Excellent | 72% Muggy | 8.6 Very High | Poor | View Details |
| May | 33°C / 25°C | 38°C / 30°C | 15days (170 mm) Wet | 10.3h Excellent | 78% Humid | 7.8 Very High | Poor | View Details |
| June | 31°C / 25°C | 36°C / 30°C | 26days (359 mm) Wet | 7.5h Good | 87% Very Muggy | 8.3 Very High | Wet | View Details |
| July | 30°C / 25°C | 36°C / 30°C | 27days (309 mm) Wet | 7h Good | 87% Very Muggy | 7.6 Very High | Wet | View Details |
| August | 30°C / 25°C | 36°C / 30°C | 27days (301 mm) Wet | 7.3h Good | 88% Very Muggy | 6.9 High | Wet | View Details |
| September | 31°C / 25°C | 37°C / 31°C | 25days (224 mm) Wet | 8.4h Good | 87% Very Muggy | 7.3 Very High | Wet | View Details |
| October | 30°C / 24°C | 36°C / 29°C | 16days (168 mm) Wet | 8.8h Good | 87% Very Muggy | 6.9 High | Poor | View Details |
| November best | 28°C / 20°C | 32°C / 23°C | 3days (33 mm) Excellent | 9.3h Good | 82% Humid | 5.9 High | Excellent | View Details |
| December best | 26°C / 17°C | 28°C / 18°C | 2days (15 mm) Excellent | 9.1h Good | 80% Humid | 5.3 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Karnaphuli are January, February, March, November, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Karnaphuli, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Karnaphuli is April, with average daytime highs of 34°C (93°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Karnaphuli is January, with average overnight lows of 14°C (58°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Karnaphuli is June, averaging 359mm of precipitation across 26 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Karnaphuli runs through July, August, June, September, with the heaviest rainfall in July. Based on 10-year averages for Karnaphuli.
Karnaphuli receives approximately 109 sunshine hours per year. The sunniest month is April with around 11 hours. Based on climate data for Karnaphuli.
The least favorable months to visit Karnaphuli are May, June, July, September, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider January, February, March, November, December instead.
The annual average UV index in Karnaphuli is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Karnaphuli is 80%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Average wind speeds in Karnaphuli are 10 km/h (6 mph). The windiest month is April with peak winds reaching 13 km/h (8 mph) (gusts up to 34 km/h / 21 mph).
Karnaphuli averages 7 clear-sky days per month with overall cloud cover around 54%. The clearest skies occur in February.
The annual average dew point in Karnaphuli is 22°C (72°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Karnaphuli has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Karnaphuli ranges from 25°C (77°F) to 34°C (93°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Karnaphuli, with a climate score of 1.4/10. Consider visiting during January, February, March, November, December instead for better conditions.
For June in Karnaphuli, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 31°C (87°F) and 26 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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