5-day weather forecast Chennai 21-03-2026
Weather forecast Chennai Saturday 21 March 21.03.2026: sunny, temperature from 26 °C to 31 °C.
Precipitation probability 69%. Wind up to 8.11 m/s (gusts 9.81 m/s). Air humidity 63–84%, atmospheric pressure 755–759 mm Hg, UV index up to 11.3.
Sunrise 06:16
Sunset 18:20
Sunset 18:20
Chart
Table
Type of temperature:
°C
°F| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 27 °C | 0% | 21% | 80% | 758 mm Hg | S 173° 4.11 (6.03) m/s | 0 |
| 01:00 |  Thundery outbreaks possible | 27 °C | 0% | 30% | 81% | 757 mm Hg | S 180° 3.31 (4.92) m/s | 0 |
| 02:00 |  Partly cloudy | 27 °C | 0% | 47% | 83% | 757 mm Hg | S 189° 3.81 (5.69) m/s | 0 |
| 03:00 | Partly cloudy | 26 °C | 0% | 33% | 83% | 756 mm Hg | S 183° 4.11 (6.14) m/s | 0 |
| 04:00 | Partly cloudy | 26 °C | 0% | 35% | 84% | 757 mm Hg | S 189° 4.5 (6.83) m/s | 0 |
| 05:00 | Partly cloudy | 26 °C | 0% | 36% | 84% | 757 mm Hg | S 191° 5.19 (7.94) m/s | 0 |
| 06:00 |  Partly cloudy | 26 °C | 0% | 44% | 84% | 758 mm Hg | SSW 193° 4.81 (7.36) m/s | 0.1 |
| 07:00 |  Patchy rain possible | 27 °C | 69% (0.01 mm/hr) | 57% | 79% | 758 mm Hg | SSW 199° 4.89 (6.44) m/s | 0.8 |
| 08:00 | Patchy rain possible | 28 °C | 74% (0.03 mm/hr) | 72% | 74% | 759 mm Hg | SSW 196° 5 (6.22) m/s | 2.7 |
| 09:00 | Patchy rain possible | 29 °C | 81% (0.02 mm/hr) | 51% | 68% | 759 mm Hg | S 188° 5.11 (5.97) m/s | 5.5 |
| 10:00 |  Sunny | 30 °C | 0% | 13% | 64% | 758 mm Hg | S 173° 5.69 (6.56) m/s | 8.6 |
| 11:00 | Sunny | 31 °C | 0% | 8% | 63% | 758 mm Hg | SSE 158° 6.5 (7.47) m/s | 10.8 |
| 12:00 | Sunny | 31 °C | 0% | 10% | 63% | 758 mm Hg | SE 146° 7.39 (8.5) m/s | 11.3 |
| 13:00 | Sunny | 30 °C | 0% | 8% | 65% | 757 mm Hg | SE 144° 8.11 (9.33) m/s | 9.6 |
| 14:00 | Sunny | 30 °C | 0% | 6% | 66% | 756 mm Hg | SE 146° 7.89 (9.08) m/s | 6.6 |
| 15:00 | Sunny | 30 °C | 0% | 4% | 67% | 755 mm Hg | SE 143° 7.89 (9.08) m/s | 3.5 |
| 16:00 | Sunny | 29 °C | 0% | 4% | 69% | 756 mm Hg | SSE 149° 7.11 (8.61) m/s | 1.1 |
| 17:00 | Sunny | 29 °C | 0% | 3% | 73% | 756 mm Hg | SSE 149° 7.11 (9.22) m/s | 0.1 |
| 18:00 | Clear | 28 °C | 0% | 2% | 78% | 756 mm Hg | SE 137° 7.19 (9.81) m/s | 0 |
| 19:00 | Clear | 28 °C | 0% | 5% | 79% | 757 mm Hg | SE 139° 6.81 (9.42) m/s | 0 |
| 20:00 | Clear | 28 °C | 0% | 10% | 79% | 758 mm Hg | SE 137° 5.69 (7.97) m/s | 0 |
| 21:00 | Clear | 28 °C | 0% | 14% | 80% | 758 mm Hg | SE 135° 4.81 (6.92) m/s | 0 |
| 22:00 | Clear | 27 °C | 0% | 15% | 81% | 758 mm Hg | SE 141° 4 (5.83) m/s | 0 |
| 23:00 | Thundery outbreaks possible | 27 °C | 0% | 34% | 81% | 758 mm Hg | SSE 148° 3 (4.5) m/s | 0 |
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.