5-day weather forecast Chennai Sep 25, 2026
34°Weather forecast Chennai tomorrow Sep 25, 2026: patchy rain possible, temperature from 28 °C to 34 °C.
Precipitation probability 39%. Wind up to 9.69 m/s (gusts 15.22 m/s). Air humidity 45–67%, atmospheric pressure 752–756 mm Hg, UV index up to 8.3.
5 days at a glance — tap a day to open it
Sunrise 05:58
Sunset 18:03
Sunset 18:03
Full Moon100% illuminated
Moonrise 17:13 · Moonset 04:44
Moonrise 17:13 · Moonset 04:44
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 29 °C | 15% | 100% | 63% | 754 mm Hg | WSW 239° 7.5 (13.61) m/s | 0 |
| 01:00 |  Patchy rain possible | 28 °C | 16% (0.01 mm/hr) | 100% | 65% | 753 mm Hg | WSW 241° 8.11 (14.22) m/s | 0 |
| 02:00 | Patchy rain possible | 28 °C | 16% (0.01 mm/hr) | 100% | 65% | 753 mm Hg | WSW 243° 8.61 (15.22) m/s | 0 |
| 03:00 | Patchy rain possible | 28 °C | 19% (0.04 mm/hr) | 100% | 66% | 753 mm Hg | WSW 243° 8 (14.89) m/s | 0 |
| 04:00 | Overcast | 28 °C | 16% | 100% | 66% | 753 mm Hg | WSW 245° 7 (14.11) m/s | 0 |
| 05:00 | Patchy rain possible | 28 °C | 16% (0.01 mm/hr) | 100% | 65% | 754 mm Hg | WSW 255° 7 (14.03) m/s | 0 |
| 06:00 | Patchy rain possible | 28 °C | 17% (0.02 mm/hr) | 100% | 66% | 755 mm Hg | WSW 257° 7.61 (13.72) m/s | 0 |
| 07:00 |  Overcast | 29 °C | 15% | 100% | 64% | 755 mm Hg | WSW 252° 7.81 (13.72) m/s | 0.6 |
| 08:00 | Patchy rain possible | 30 °C | 15% (0.01 mm/hr) | 100% | 61% | 755 mm Hg | WSW 254° 8.11 (12.81) m/s | 1.9 |
| 09:00 | Overcast | 30 °C | 13% | 100% | 58% | 756 mm Hg | WSW 258° 8.69 (11.5) m/s | 4.6 |
| 10:00 | Overcast | 32 °C | 12% | 100% | 52% | 755 mm Hg | W 261° 8.39 (10.92) m/s | 7.2 |
| 11:00 | Overcast | 33 °C | 11% | 100% | 48% | 755 mm Hg | WSW 257° 7.81 (10.19) m/s | 8 |
| 12:00 | Overcast | 34 °C | 11% | 100% | 45% | 754 mm Hg | WSW 258° 7.5 (9.64) m/s | 8.3 |
| 13:00 | Overcast | 34 °C | 11% | 100% | 45% | 753 mm Hg | WSW 246° 8.61 (9.83) m/s | 6.8 |
| 14:00 | Overcast | 34 °C | 11% | 100% | 45% | 752 mm Hg | WSW 241° 8.31 (9.83) m/s | 3.5 |
| 15:00 | Patchy rain possible | 34 °C | 12% (0.03 mm/hr) | 100% | 46% | 752 mm Hg | WSW 244° 7.5 (9.33) m/s | 1.4 |
| 16:00 | Patchy rain possible | 32 °C | 13% (0.02 mm/hr) | 100% | 52% | 753 mm Hg | SW 229° 9.69 (12.39) m/s | 0.3 |
| 17:00 | Patchy rain possible | 30 °C | 17% (0.03 mm/hr) | 100% | 60% | 753 mm Hg | SSW 198° 5.39 (8.83) m/s | 0 |
| 18:00 |  Light rain shower | 31 °C | 23% (0.18 mm/hr) | 100% | 53% | 754 mm Hg | WSW 242° 6.39 (11.72) m/s | 0 |
| 19:00 | Light rain shower | 31 °C | 39% (0.56 mm/hr) | 98% | 52% | 755 mm Hg | W 259° 7.5 (12.89) m/s | 0 |
| 20:00 | Light rain shower | 29 °C | 39% (0.46 mm/hr) | 99% | 60% | 755 mm Hg | WSW 255° 6.89 (13.67) m/s | 0 |
| 21:00 | Light rain shower | 28 °C | 38% (0.38 mm/hr) | 99% | 67% | 755 mm Hg | W 260° 6 (13.14) m/s | 0 |
| 22:00 | Patchy rain possible | 29 °C | 20% (0.07 mm/hr) | 100% | 62% | 755 mm Hg | WSW 258° 6.31 (12.53) m/s | 0 |
| 23:00 | Light rain shower | 29 °C | 30% (0.28 mm/hr) | 100% | 61% | 755 mm Hg | WSW 251° 6.5 (13.14) m/s | 0 |
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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.