Weather forecast Helsinki 21-09-2025
Weather Sunday 21 September temperature from 9 °C to 15 °C, cloud cover up to 85%, precipitation is expected with a 87% chance, wind up to 5.31 m/s (gusts up to 7.86 m/s), air humidity from 75% to 85%, atmospheric pressure from 755 to 758 mm Hg, UV Index to 4 during the day. Forecast for the next days on the table.
Sunrise 06:51
Sunset 19:37
Sunset 19:37
Chart
Table
Type of temperature:
°C
°F| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 10 °C | 0% | 6% | 82% | 757 mm Hg | W 3.39 m/s | 0 |
| 01:00 | Clear | 9 °C | 0% | 6% | 82% | 757 mm Hg | W 3 m/s | 0 |
| 02:00 | Clear | 9 °C | 0% | 6% | 81% | 757 mm Hg | W 2.69 m/s | 0 |
| 03:00 | Clear | 9 °C | 0% | 11% | 80% | 757 mm Hg | W 2.19 m/s | 0 |
| 04:00 | Clear | 9 °C | 0% | 15% | 77% | 756 mm Hg | WNW 1.39 m/s | 0 |
| 05:00 |  Partly cloudy | 10 °C | 0% | 36% | 75% | 756 mm Hg | WSW 1.31 m/s | 0 |
| 06:00 |  Cloudy | 10 °C | 0% | 83% | 75% | 756 mm Hg | SSW 1.89 m/s | 0 |
| 07:00 | Partly cloudy | 11 °C | 0% | 44% | 75% | 756 mm Hg | S 2.39 m/s | 0 |
| 08:00 |  Partly cloudy | 12 °C | 0% | 44% | 78% | 756 mm Hg | S 2.89 m/s | 0 |
| 09:00 |  Patchy rain possible | 14 °C | 87% (0.03 mm/hr) | 73% | 81% | 755 mm Hg | S 3.89 m/s | 0.2 |
| 10:00 |  Patchy light drizzle | 14 °C | 100% (0.55 mm/hr) | 59% | 81% | 755 mm Hg | SSW 4.69 m/s | 0.4 |
| 11:00 | Patchy rain possible | 15 °C | 100% (0.38 mm/hr) | 73% | 81% | 755 mm Hg | SW 5.31 m/s | 0.2 |
| 12:00 | Patchy rain possible | 15 °C | 100% (0.19 mm/hr) | 80% | 78% | 755 mm Hg | SW 5 m/s | 0.4 |
| 13:00 |  Light rain shower | 15 °C | 100% (0.23 mm/hr) | 55% | 78% | 755 mm Hg | WSW 5.31 m/s | 0.7 |
| 14:00 |  Light drizzle | 15 °C | 100% (0.17 mm/hr) | 85% | 81% | 755 mm Hg | WSW 4.89 m/s | 0.2 |
| 15:00 | Patchy rain possible | 15 °C | 100% (0.07 mm/hr) | 76% | 79% | 755 mm Hg | W 4.39 m/s | 0.3 |
| 16:00 | Patchy rain possible | 14 °C | 100% (0.09 mm/hr) | 52% | 80% | 755 mm Hg | WNW 3.19 m/s | 3 |
| 17:00 | Patchy rain possible | 14 °C | 57% (0.02 mm/hr) | 69% | 81% | 756 mm Hg | NNW 3.19 m/s | 3 |
| 18:00 | Partly cloudy | 12 °C | 0% | 25% | 84% | 756 mm Hg | N 3.11 m/s | 4 |
| 19:00 | Partly cloudy | 11 °C | 0% | 29% | 85% | 757 mm Hg | NNW 2.81 m/s | 4 |
| 20:00 | Partly cloudy | 11 °C | 0% | 33% | 84% | 757 mm Hg | NNW 2.69 m/s | 0 |
| 21:00 | Partly cloudy | 10 °C | 0% | 48% | 83% | 757 mm Hg | NNW 3.39 m/s | 0 |
| 22:00 | Partly cloudy | 9 °C | 0% | 53% | 80% | 758 mm Hg | NNW 3.39 m/s | 0 |
| 23:00 | Partly cloudy | 9 °C | 0% | 52% | 78% | 758 mm Hg | NNW 3.19 m/s | 0 |
