West Bengal has a warm subtropical climate with warm summers and mild winters.
West Bengal has an average annual temperature of 25.8°C across all 19 cities, with approximately 1398 mm of annual precipitation and average humidity of 67%. Temperatures peak in April and drop to their lowest in January, while rainfall is highest during summer months.
The warmest city is Malda with average July highs of 36.1°C, while Darjeeling is the coldest with average January lows of 3.8°C. Humidity remains moderate throughout the year, especially in autumn, creating warm and humid conditions. These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.
| Month | 🌤️ | High | Low | Avg | Humid % | Rain (mm) | Wind (m/s) | Solar (kWh/m²) |
|---|---|---|---|---|---|---|---|---|
| January | ☀️ | 28.3°C | 6.6°C | 17.4°C | 56% | 9 | 1.5 | 3.70 |
| February | ☀️ | 33.3°C | 9.2°C | 21.3°C | 48% | 16 | 1.6 | 4.60 |
| March | 😎 | 39.0°C | 13.9°C | 26.5°C | 43% | 27 | 1.9 | 5.50 |
| April | 🥵 | 42.2°C | 19.7°C | 30.9°C | 47% | 52 | 2.3 | 5.90 |
| May | ⛅ | 42.0°C | 23.2°C | 32.6°C | 60% | 135 | 2.5 | 5.70 |
| June | 🌧️ | 39.6°C | 25.0°C | 32.3°C | 74% | 223 | 2.7 | 4.80 |
| July | 🌧️ | 34.4°C | 24.7°C | 29.5°C | 85% | 305 | 2.6 | 4.30 |
| August | 🌧️ | 33.3°C | 24.3°C | 28.8°C | 87% | 271 | 2.2 | 4.30 |
| September | 🌧️ | 32.7°C | 22.8°C | 27.7°C | 87% | 231 | 1.8 | 4.30 |
| October | ⛅ | 31.9°C | 17.0°C | 24.4°C | 80% | 107 | 1.3 | 4.50 |
| November | ☀️ | 29.9°C | 11.9°C | 20.9°C | 72% | 14 | 1.3 | 4.20 |
| December | ☀️ | 27.2°C | 7.6°C | 17.4°C | 65% | 9 | 1.4 | 3.70 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 19 cities in West Bengal
🧥 Light layers are sufficient — this Mild Winter stays cool without prolonged hard freezes.
🌤️ Limit midday outdoor exposure and stay hydrated — this is an intense Hot Summer.
☔ Heavy Rainfall expected — carry rain gear and plan outdoor activities around these months.
Region-wide monthly averages across 19 cities · 1981–2025 · °C
Temperatures rise steadily from spring, peak in April, and gradually decline through autumn into winter.
These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.
Region-wide monthly rainfall · 1981–2025 · mm/month
💧 Humidity peaks at 87% in September · annual avg 67%
Monthly averages · 1981–2025
Across 45 years, West Bengal's temperature has remained relatively stable over the past decade. 1988 was the warmest year overall and 2020 the coolest.
The warmest year on record was 1988 (avg: 26.7°C), while the coldest year was 2020 (avg: 24.8°C).
Averaged across all 19 cities in West Bengal · Last 30 years · °C
Averaged across all 19 cities in West Bengal · Last 30 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 19 cities in West Bengal for each year.
| Year | Min Temp | Avg Temp | Max Temp | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|
2025 | 17.4°C | 25.5°C | 33.5°C | 1801 | 75% | 1.8 m/s |
2024 | 17.8°C | 26.1°C | 34.4°C | 1933 | 72% | 1.9 m/s |
2023 | 18.0°C | 26.5°C | 34.9°C | 1621 | 68% | 1.8 m/s |
2022 | 17.5°C | 25.4°C | 33.2°C | 1515 | 75% | 2.0 m/s |
2021 🌧️ | 17.3°C | 25.5°C | 33.7°C | 2099 | 72% | 1.8 m/s |
2020 | 16.9°C | 24.8°C | 32.6°C | 2030 | 76% | 1.7 m/s |
2019 | 17.1°C | 25.8°C | 34.4°C | 1709 | 71% | 1.9 m/s |
2018 | 17.2°C | 25.3°C | 33.4°C | 1484 | 71% | 1.8 m/s |
2017 | 17.4°C | 25.8°C | 34.1°C | 2001 | 72% | 1.9 m/s |
2016 | 18.3°C | 26.6°C | 34.8°C | 1721 | 69% | 1.8 m/s |
Showing 1 to 10 of 45 years
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.
