5-day weather forecast Saint Petersburg 18-05-2026
Weather forecast Saint Petersburg tomorrow 18.05.2026: partly cloudy, temperature from 10 °C to 18 °C.
Precipitation probability 100%. Wind up to 4.5 m/s (gusts 6.92 m/s). Air humidity 51–93%, atmospheric pressure 761–765 mm Hg, UV index up to 3.8.
Sunrise 04:15
Sunset 21:37
Sunset 21:37
Waxing Crescent2% illuminated
Moonrise 03:54 · Moonset 00:01
Moonrise 03:54 · Moonset 00:01
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Partly cloudy | 10 °C | 0% | 38% | 77% | 764 mm Hg | N 355° 2.19 (4.61) m/s | 0 |
| 01:00 | Partly cloudy | 10 °C | 0% | 43% | 77% | 764 mm Hg | N 351° 2.39 (5.03) m/s | 0 |
| 02:00 |  Clear | 10 °C | 0% | 21% | 73% | 764 mm Hg | N 0° 2.31 (4.67) m/s | 0 |
| 03:00 | Partly cloudy | 10 °C | 0% | 29% | 70% | 765 mm Hg | N 354° 2.31 (4.5) m/s | 0 |
| 04:00 | Partly cloudy | 11 °C | 0% | 58% | 66% | 765 mm Hg | N 5° 2.31 (4.5) m/s | 0 |
| 05:00 |  Partly cloudy | 10 °C | 0% | 26% | 65% | 764 mm Hg | NNE 13° 2.31 (4.53) m/s | 0 |
| 06:00 |  Sunny | 11 °C | 0% | 18% | 66% | 764 mm Hg | NNE 19° 2.11 (3.97) m/s | 0.2 |
| 07:00 | Partly cloudy | 12 °C | 0% | 35% | 63% | 765 mm Hg | NNE 28° 2.31 (3.58) m/s | 0.4 |
| 08:00 | Partly cloudy | 13 °C | 0% | 49% | 57% | 764 mm Hg | NE 35° 3.19 (4.36) m/s | 0.9 |
| 09:00 | Partly cloudy | 14 °C | 0% | 49% | 54% | 764 mm Hg | NE 42° 3.81 (4.86) m/s | 1.5 |
| 10:00 | Partly cloudy | 16 °C | 0% | 50% | 52% | 764 mm Hg | NE 47° 4.19 (5.11) m/s | 2.3 |
| 11:00 | Partly cloudy | 16 °C | 0% | 48% | 52% | 764 mm Hg | NE 48° 4.31 (5.25) m/s | 2.5 |
| 12:00 |  Cloudy | 18 °C | 0% | 63% | 51% | 764 mm Hg | NE 55° 4.19 (4.83) m/s | 3.8 |
| 13:00 |  Patchy rain possible | 17 °C | 100% (0.14 mm/hr) | 75% | 56% | 764 mm Hg | ENE 60° 4.31 (5.22) m/s | 2.6 |
| 14:00 | Patchy rain possible | 15 °C | 100% (0.05 mm/hr) | 95% | 66% | 764 mm Hg | NE 36° 3.69 (5.42) m/s | 1.2 |
| 15:00 | Patchy rain possible | 14 °C | 77% (0.02 mm/hr) | 81% | 73% | 764 mm Hg | NNE 22° 4.19 (6.92) m/s | 0.4 |
| 16:00 |  Overcast | 14 °C | 0% | 92% | 72% | 763 mm Hg | NNE 31° 4.11 (6.19) m/s | 0.7 |
| 17:00 | Cloudy | 14 °C | 0% | 68% | 74% | 764 mm Hg | NNE 30° 3.11 (5) m/s | 0.3 |
| 18:00 | Partly cloudy | 15 °C | 0% | 62% | 69% | 763 mm Hg | NNE 31° 4.5 (6.22) m/s | 0.7 |
| 19:00 | Patchy rain possible | 15 °C | 77% (0.03 mm/hr) | 81% | 70% | 762 mm Hg | NNE 33° 4.5 (6.81) m/s | 0.4 |
| 20:00 | Patchy rain possible | 15 °C | 100% (0.39 mm/hr) | 89% | 74% | 762 mm Hg | NE 38° 4 (6.58) m/s | 0.1 |
| 21:00 |  Light rain shower | 14 °C | 100% (0.93 mm/hr) | 87% | 81% | 762 mm Hg | NE 41° 3.81 (6.83) m/s | 0 |
| 22:00 |  Patchy rain possible | 13 °C | 100% (1.52 mm/hr) | 81% | 88% | 762 mm Hg | NE 45° 3.61 (6.5) m/s | 0 |
| 23:00 | Patchy rain possible | 12 °C | 100% (1.38 mm/hr) | 88% | 93% | 761 mm Hg | NE 44° 3.19 (6.03) m/s | 0 |
Saint Petersburg on the map
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.