Weather in Kostroma on 18 August 2026
Preliminary outlook for 18 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +23°C and nighttime around +14°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.
+14°C
Weather archive — latest year: 2025
Patchy light drizzle
Weather archive — latest year: 2025
Nighttime: +8°C
Precipitation: 0.4 mm
Wind: 3 — 4 m/s
Humidity: 80%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 11 h |
| UV index | 4 | Cloud cover (avg.) | 47% |
| Pressure (avg.) | 752 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +13°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +13°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 265° ← (W) |
Sunrise
04:47
Duration
15 h 05 min
Sunset
19:52
Moonrise
22:31
Moonset
18:14
Moon phase
Last Quarter
Illumination
29%
+18°C
Weather archive — for 2024 year
Overcast
Weather archive — for 2024 year
Nighttime: +15°C
Precipitation: 0.1 mm
Wind: 3 — 5 m/s
Humidity: 89%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 5 h |
| UV index | 4 | Cloud cover (avg.) | 93% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 6 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 282° ← (W) |
Sunrise
04:47
Duration
15 h 04 min
Sunset
19:51
Moonrise
20:03
Moonset
01:36
Moon phase
Waxing Gibbous
Illumination
93%
+21°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 10 h |
| UV index | 6 | Cloud cover (avg.) | 48% |
| 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.) | +16°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 287° ← (WNW) |
Sunrise
04:46
Duration
15 h 07 min
Sunset
19:53
Moonrise
06:37
Moonset
20:40
Moon phase
Waxing Crescent
Illumination
9%
+22°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +17°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 53%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 15 h |
| UV index | 6 | Cloud cover (avg.) | 15% |
| 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.) | +12°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 117° → (ESE) |
Sunrise
04:46
Duration
15 h 07 min
Sunset
19:53
Moonrise
21:36
Moonset
13:20
Moon phase
Waning Gibbous
Illumination
54%
+25°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 56%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +25°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 167° ↓ (S) |
Sunrise
04:47
Duration
15 h 05 min
Sunset
19:52
Moonrise
18:12
Moonset
23:44
Moon phase
Waxing Gibbous
Illumination
69%
+13°C
Weather archive — for 2020 year
Cloudy
Weather archive — for 2020 year
Nighttime: +10°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +17°C | Sun hours | 11 h |
| UV index | 4 | Cloud cover (avg.) | 48% |
| 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.) | +13°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 309° ↖ (NW) |
Sunrise
04:47
Duration
15 h 04 min
Sunset
19:51
Moonrise
02:58
Moonset
20:11
Moon phase
New Moon
Illumination
0%
+16°C
Weather archive — for 2019 year
Overcast
Weather archive — for 2019 year
Nighttime: +15°C
Precipitation: 0.9 mm
Wind: 4 — 5 m/s
Humidity: 93%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 2 h |
| UV index | 4 | Cloud cover (avg.) | 88% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 7 km | Sea temperature | — |
| Feels like (avg.) | +16°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +16°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 80° ↗ (ENE) |
Sunrise
04:46
Duration
15 h 07 min
Sunset
19:53
Moonrise
21:08
Moonset
07:33
Moon phase
Waning Gibbous
Illumination
78%
Weather in Kostroma on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+18°C
|
+8°C
|
+14°C | 11 h | 4 | 80% | 3 — 4 m/s |
| 2024 |
+21°C
|
+15°C
|
+18°C | 5 h | 4 | 89% | 3 — 5 m/s |
| 2023 |
+26°C
|
+16°C
|
+21°C | 10 h | 6 | 73% | 2 — 3 m/s |
| 2022 |
+29°C
|
+17°C
|
+22°C | 15 h | 6 | 53% | 4 — 5 m/s |
| 2021 |
+31°C
|
+19°C
|
+25°C | 14 h | 6 | 56% | 4 — 5 m/s |
| 2020 |
+17°C
|
+10°C
|
+13°C | 11 h | 4 | 68% | 3 — 4 m/s |
| 2019 |
+18°C
|
+15°C
|
+16°C | 2 h | 4 | 93% | 4 — 5 m/s |