Assam has a warm subtropical climate with warm summers and mild winters.
Assam has an average annual temperature of 24.6°C across all 23 cities, with approximately 1925 mm of annual precipitation and average humidity of 73%. Temperatures peak in May and drop to their lowest in January, while rainfall is highest during summer months.
The warmest city is Tinsukia with average July highs of 39.6°C, while Kamrup is the coldest with average January lows of 5.9°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 | ☀️ | 25.4°C | 7.7°C | 16.6°C | 69% | 11 | 0.9 | 3.70 |
| February | ☀️ | 28.9°C | 9.3°C | 19.1°C | 62% | 27 | 1.0 | 4.20 |
| March | 😎 | 34.0°C | 12.5°C | 23.3°C | 56% | 58 | 1.1 | 4.80 |
| April | 🌧️ | 36.0°C | 17.1°C | 26.5°C | 62% | 172 | 1.2 | 5.00 |
| May | 🌧️ | 36.7°C | 20.3°C | 28.5°C | 70% | 255 | 1.1 | 4.90 |
| June | 🌧️ | 36.3°C | 23.3°C | 29.8°C | 79% | 346 | 1.1 | 4.50 |
| July | 🌧️ | 35.5°C | 23.9°C | 29.7°C | 83% | 365 | 1.1 | 4.40 |
| August | 🌧️ | 35.6°C | 23.7°C | 29.6°C | 83% | 302 | 1.0 | 4.50 |
| September | 🌧️ | 34.5°C | 22.1°C | 28.3°C | 83% | 245 | 0.9 | 4.30 |
| October | ⛅ | 32.4°C | 17.4°C | 24.9°C | 81% | 119 | 0.9 | 4.30 |
| November | ☀️ | 28.9°C | 13.0°C | 21.0°C | 77% | 15 | 0.9 | 4.20 |
| December | ☀️ | 25.8°C | 9.3°C | 17.6°C | 74% | 11 | 0.9 | 3.70 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 23 cities in Assam
🧥 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 23 cities · 1981–2025 · °C
Temperatures rise steadily from spring, peak in May, 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
Monthly averages · 1981–2025
💧 Humidity peaks at 83% in September · annual avg 73%
The warmest year on record was 2023 (avg: 25.5°C), while the coldest year was 2004 (avg: 23.7°C).
Averaged across all 23 cities in Assam · Last 10 years · °C
Averaged across all 23 cities in Assam · Last 10 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 23 cities in Assam for each year.
| Year | Min Temp | Avg Temp | Max Temp | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|
2025 | 17.6°C | 24.9°C | 32.1°C | 2190 | 77% | 1.0 m/s |
2024 | 17.2°C | 25.0°C | 32.8°C | 2377 | 74% | 1.0 m/s |
2023 🔥 | 17.5°C | 25.5°C | 33.5°C | 1947 | 74% | 1.0 m/s |
2022 | 16.8°C | 24.4°C | 31.9°C | 2505 | 78% | 1.1 m/s |
2021 | 17.2°C | 24.9°C | 32.6°C | 1848 | 76% | 1.0 m/s |
2020 🌧️ | 17.2°C | 24.5°C | 31.9°C | 2729 | 79% | 1.0 m/s |
2019 | 17.1°C | 24.7°C | 32.3°C | 2489 | 77% | 1.0 m/s |
2018 | 17.4°C | 24.6°C | 31.8°C | 2049 | 78% | 1.0 m/s |
2017 | 17.6°C | 24.9°C | 32.2°C | 2714 | 78% | 1.1 m/s |
2016 | 18.2°C | 25.4°C | 32.5°C | 2296 | 78% | 1.0 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.
