Weather in Kostroma on 15 August 2026
Preliminary outlook for 15 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +23°C and nighttime around +13°C, average precipitation 0 mm, wind around 4 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.
+17°C
Weather archive — latest year: 2025
Partly Cloudy
Weather archive — latest year: 2025
Nighttime: +12°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 74%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 19% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +16°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 339° ↖ (NNW) |
Sunrise
04:40
Duration
15 h 20 min
Sunset
20:00
Moonrise
21:01
Moonset
13:32
Moon phase
Last Quarter
Illumination
51%
+14°C
Weather archive — for 2024 year
Partly Cloudy
Weather archive — for 2024 year
Nighttime: +9°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 70%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 14 h |
| UV index | 4 | Cloud cover (avg.) | 26% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +13°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 324° ↖ (NNW) |
Sunrise
04:41
Duration
15 h 18 min
Sunset
19:59
Moonrise
18:33
Moonset
22:41
Moon phase
Waxing Gibbous
Illumination
71%
+19°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 4 h |
| UV index | 5 | Cloud cover (avg.) | 75% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 6 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 291° ← (WNW) |
Sunrise
04:39
Duration
15 h 22 min
Sunset
20:01
Moonrise
02:31
Moonset
20:25
Moon phase
New Moon
Illumination
0%
+23°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 54%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 15 h |
| UV index | 6 | Cloud cover (avg.) | 37% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +22°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 108° → (E) |
Sunrise
04:40
Duration
15 h 20 min
Sunset
20:00
Moonrise
21:17
Moonset
08:59
Moon phase
Waning Gibbous
Illumination
76%
+21°C
Weather archive — for 2021 year
Partly Cloudy
Weather archive — for 2021 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 4 — 7 m/s
Humidity: 58%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 13 h |
| UV index | 6 | Cloud cover (avg.) | 38% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +20°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 209° ↓ (SSW) |
Sunrise
04:40
Duration
15 h 20 min
Sunset
20:00
Moonrise
13:46
Moonset
22:06
Moon phase
First Quarter
Illumination
47%
+13°C
Weather archive — for 2020 year
Cloudy
Weather archive — for 2020 year
Nighttime: +9°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
Humidity: 80%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 7 h |
| UV index | 4 | Cloud cover (avg.) | 51% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +13°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 331° ↖ (NW) |
Sunrise
04:41
Duration
15 h 18 min
Sunset
19:59
Moonrise
No moonrise
Moonset
18:15
Moon phase
Waning Crescent
Illumination
16%
+16°C
Weather archive — for 2019 year
Overcast
Weather archive — for 2019 year
Nighttime: +13°C
Precipitation: 0.1 mm
Wind: 4 — 7 m/s
Humidity: 87%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 8 h |
| UV index | 5 | Cloud cover (avg.) | 55% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 210° ↓ (SSW) |
Sunrise
04:39
Duration
15 h 22 min
Sunset
20:01
Moonrise
20:25
Moonset
03:56
Moon phase
Full Moon
Illumination
100%
Weather in Kostroma on 15 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+23°C
|
+12°C
|
+17°C | 15 h | 5 | 74% | 5 — 6 m/s |
| 2024 |
+18°C
|
+9°C
|
+14°C | 14 h | 4 | 70% | 4 — 6 m/s |
| 2023 |
+22°C
|
+15°C
|
+19°C | 4 h | 5 | 86% | 4 — 5 m/s |
| 2022 |
+28°C
|
+18°C
|
+23°C | 15 h | 6 | 54% | 2 — 3 m/s |
| 2021 |
+26°C
|
+15°C
|
+21°C | 13 h | 6 | 58% | 4 — 7 m/s |
| 2020 |
+19°C
|
+9°C
|
+13°C | 7 h | 4 | 80% | 2 — 2 m/s |
| 2019 |
+23°C
|
+13°C
|
+16°C | 8 h | 5 | 87% | 4 — 7 m/s |