Weather in Saint Petersburg on 17 August 2026
Preliminary outlook for 17 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +22°C and nighttime around +14°C, average precipitation 0.4 mm, wind around 3 m/s, humidity around 73%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+14°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +9°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 9 h |
| UV index | 4 | Cloud cover (avg.) | 49% |
| Pressure (avg.) | 752 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +14°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 117° ↗ (ENE) |
Sunrise
05:19
Duration
15 h 26 min
Sunset
20:45
Moonrise
21:49
Moonset
18:15
Moon phase
Last Quarter
Illumination
37%
+18°C
Weather archive — for 2024 year
Patchy rain nearby
Weather archive — for 2024 year
Nighttime: +15°C
Precipitation: 2.8 mm
Wind: 4 — 5 m/s
Humidity: 83%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 5 h |
| UV index | 4 | Cloud cover (avg.) | 77% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 261° ← (W) |
Sunrise
05:20
Duration
15 h 25 min
Sunset
20:45
Moonrise
20:57
Moonset
00:05
Moon phase
Waxing Gibbous
Illumination
86%
+20°C
Weather archive — for 2023 year
Cloudy
Weather archive — for 2023 year
Nighttime: +17°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 8 h |
| UV index | 5 | Cloud cover (avg.) | 45% |
| Pressure (avg.) | 766 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 279° ← (WNW) |
Sunrise
05:18
Duration
15 h 29 min
Sunset
20:47
Moonrise
05:53
Moonset
21:26
Moon phase
Waxing Crescent
Illumination
1%
+22°C
Weather archive — for 2022 year
Partly Cloudy
Weather archive — for 2022 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 15 h |
| UV index | 6 | Cloud cover (avg.) | 32% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +23°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +23°C | Wind chill (avg.) | +23°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 136° ↘ (SE) |
Sunrise
05:18
Duration
15 h 28 min
Sunset
20:46
Moonrise
22:02
Moonset
12:47
Moon phase
Waning Gibbous
Illumination
61%
+18°C
Weather archive — for 2021 year
Cloudy
Weather archive — for 2021 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 2 h |
| UV index | 4 | Cloud cover (avg.) | 82% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 162° ↓ (S) |
Sunrise
05:19
Duration
15 h 27 min
Sunset
20:46
Moonrise
18:02
Moonset
23:15
Moon phase
First Quarter
Illumination
61%
+16°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +12°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 61%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 6% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +16°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +16°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 246° ↖ (NW) |
Sunrise
05:19
Duration
15 h 26 min
Sunset
20:45
Moonrise
02:00
Moonset
20:45
Moon phase
Waning Crescent
Illumination
1%
+17°C
Weather archive — for 2019 year
Clear/Sunny
Weather archive — for 2019 year
Nighttime: +11°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 62%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +9°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 172° ↓ (S) |
Sunrise
05:18
Duration
15 h 29 min
Sunset
20:47
Moonrise
21:44
Moonset
06:58
Moon phase
Waxing Gibbous
Illumination
86%
Weather in Saint Petersburg on 17 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+19°C
|
+9°C
|
+14°C | 9 h | 4 | 68% | 2 — 3 m/s |
| 2024 |
+21°C
|
+15°C
|
+18°C | 5 h | 4 | 83% | 4 — 5 m/s |
| 2023 |
+24°C
|
+17°C
|
+20°C | 8 h | 5 | 82% | 3 — 4 m/s |
| 2022 |
+27°C
|
+18°C
|
+22°C | 15 h | 6 | 72% | 3 — 4 m/s |
| 2021 |
+23°C
|
+14°C
|
+18°C | 2 h | 4 | 86% | 3 — 4 m/s |
| 2020 |
+20°C
|
+12°C
|
+16°C | 15 h | 5 | 61% | 3 — 5 m/s |
| 2019 |
+22°C
|
+11°C
|
+17°C | 15 h | 5 | 62% | 2 — 3 m/s |