Weather in Kostroma on 17 August 2026
Preliminary outlook for 17 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +23°C and nighttime around +13°C, average precipitation 0.2 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.
+16°C
Weather archive — latest year: 2025
Light rain shower
Weather archive — latest year: 2025
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 7 h |
| UV index | 5 | Cloud cover (avg.) | 62% |
| Pressure (avg.) | 752 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +16°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +16°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 233° ← (W) |
Sunrise
04:45
Duration
15 h 10 min
Sunset
19:55
Moonrise
21:40
Moonset
16:55
Moon phase
Last Quarter
Illumination
37%
+15°C
Weather archive — for 2024 year
Partly Cloudy
Weather archive — for 2024 year
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 8 h |
| UV index | 4 | Cloud cover (avg.) | 43% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +14°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 255° ↓ (SSW) |
Sunrise
04:45
Duration
15 h 09 min
Sunset
19:54
Moonrise
19:49
Moonset
No moonset
Moon phase
Waxing Gibbous
Illumination
86%
+21°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 15 h |
| UV index | 6 | Cloud cover (avg.) | 4% |
| 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.) | +15°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 244° ↑ (N) |
Sunrise
04:44
Duration
15 h 12 min
Sunset
19:56
Moonrise
05:18
Moonset
20:36
Moon phase
Waxing Crescent
Illumination
1%
+22°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 15 h |
| UV index | 6 | Cloud cover (avg.) | 11% |
| 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.) | 7 m/s | Wind direction (avg.) | 114° → (ESE) |
Sunrise
04:44
Duration
15 h 11 min
Sunset
19:55
Moonrise
21:28
Moonset
11:55
Moon phase
Waning Gibbous
Illumination
61%
+21°C
Weather archive — for 2021 year
Cloudy
Weather archive — for 2021 year
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 15 h |
| UV index | 6 | Cloud cover (avg.) | 29% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +22°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 187° ↗ (ENE) |
Sunrise
04:45
Duration
15 h 10 min
Sunset
19:55
Moonrise
16:53
Moonset
22:55
Moon phase
First Quarter
Illumination
61%
+14°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +17°C | Sun hours | 14 h |
| UV index | 3 | Cloud cover (avg.) | 43% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +14°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 329° ↖ (NNW) |
Sunrise
04:45
Duration
15 h 09 min
Sunset
19:54
Moonrise
01:36
Moonset
19:45
Moon phase
Waning Crescent
Illumination
1%
+16°C
Weather archive — for 2019 year
Partly Cloudy
Weather archive — for 2019 year
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 36% |
| Pressure (avg.) | 763 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.) | +16°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 46° ↗ (ENE) |
Sunrise
04:43
Duration
15 h 13 min
Sunset
19:56
Moonrise
20:56
Moonset
06:20
Moon phase
Waxing Gibbous
Illumination
86%
Weather in Kostroma on 17 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
|
|
+16°C | 7 h | 5 | 80% | 3 — 4 m/s |
| 2024 |
|
|
+15°C | 8 h | 4 | 77% | 2 — 3 m/s |
| 2023 |
|
|
+21°C | 15 h | 6 | 72% | 2 — 3 m/s |
| 2022 |
|
|
+22°C | 15 h | 6 | 56% | 3 — 4 m/s |
| 2021 |
|
|
+21°C | 15 h | 6 | 72% | 2 — 3 m/s |
| 2020 |
|
|
+14°C | 14 h | 3 | 77% | 4 — 6 m/s |
| 2019 |
|
|
+16°C | 15 h | 5 | 78% | 3 — 4 m/s |