Weather in Irkutsk on 20 August 2026
Preliminary outlook for 20 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +19°C and nighttime around +11°C, average precipitation 1.1 mm, wind around 2 m/s, humidity around 77%.
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
Light rain
Weather archive — latest year: 2025
Nighttime: +13°C
Precipitation: 3.1 mm
Wind: 2 — 3 m/s
Humidity: 91%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +16°C | Sun hours | 2 h |
| UV index | 4 | Cloud cover (avg.) | 77% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 97° → (ESE) |
Sunrise
05:54
Duration
14 h 23 min
Sunset
20:17
Moonrise
01:19
Moonset
19:23
Moon phase
Waning Crescent
Illumination
15%
+17°C
Weather archive — for 2024 year
Moderate rain at times
Weather archive — for 2024 year
Nighttime: +14°C
Precipitation: 0.7 mm
Wind: 3 — 5 m/s
Humidity: 83%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 3 h |
| UV index | 5 | Cloud cover (avg.) | 83% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 286° ← (WNW) |
Sunrise
05:54
Duration
14 h 22 min
Sunset
20:16
Moonrise
20:47
Moonset
05:58
Moon phase
Full Moon
Illumination
100%
+13°C
Weather archive — for 2023 year
Partly Cloudy
Weather archive — for 2023 year
Nighttime: +8°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 12 h |
| UV index | 4 | Cloud cover (avg.) | 32% |
| 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.) | +9°C |
| Heat index (avg.) | +13°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 272° ↖ (NNW) |
Sunrise
05:53
Duration
14 h 25 min
Sunset
20:18
Moonrise
09:45
Moonset
21:36
Moon phase
Waxing Crescent
Illumination
23%
+11°C
Weather archive — for 2022 year
Moderate or heavy rain shower
Weather archive — for 2022 year
Nighttime: +7°C
Precipitation: 1.6 mm
Wind: 2 — 3 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +16°C | Sun hours | 10 h |
| UV index | 4 | Cloud cover (avg.) | 61% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +10°C | Dew point (avg.) | +7°C |
| Heat index (avg.) | +11°C | Wind chill (avg.) | +10°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 318° ↖ (NW) |
Sunrise
05:54
Duration
14 h 23 min
Sunset
20:17
Moonrise
23:30
Moonset
15:58
Moon phase
Last Quarter
Illumination
39%
+17°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +10°C
Precipitation: 0 mm
Wind: 1 — 2 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +9°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 124° → (E) |
Sunrise
05:54
Duration
14 h 23 min
Sunset
20:17
Moonrise
19:46
Moonset
02:13
Moon phase
Waxing Gibbous
Illumination
83%
+19°C
Weather archive — for 2020 year
Overcast
Weather archive — for 2020 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 10 h |
| UV index | 5 | Cloud cover (avg.) | 38% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +20°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 239° ← (WNW) |
Sunrise
05:54
Duration
14 h 22 min
Sunset
20:16
Moonrise
06:50
Moonset
21:17
Moon phase
Waxing Crescent
Illumination
6%
+14°C
Weather archive — for 2019 year
Moderate or heavy rain shower
Weather archive — for 2019 year
Nighttime: +11°C
Precipitation: 2 mm
Wind: 3 — 5 m/s
Humidity: 77%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 10 h |
| UV index | 3 | Cloud cover (avg.) | 60% |
| Pressure (avg.) | 762 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.) | 11 m/s | Wind direction (avg.) | 304° ↖ (NW) |
Sunrise
05:53
Duration
14 h 25 min
Sunset
20:18
Moonrise
22:19
Moonset
10:29
Moon phase
Waning Gibbous
Illumination
64%
Weather in Irkutsk on 20 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+16°C
|
+13°C
|
+14°C | 2 h | 4 | 91% | 2 — 3 m/s |
| 2024 |
+19°C
|
+14°C
|
+17°C | 3 h | 5 | 83% | 3 — 5 m/s |
| 2023 |
+18°C
|
+8°C
|
+13°C | 12 h | 4 | 79% | 2 — 3 m/s |
| 2022 |
+16°C
|
+7°C
|
+11°C | 10 h | 4 | 72% | 2 — 3 m/s |
| 2021 |
+24°C
|
+10°C
|
+17°C | 15 h | 5 | 66% | 1 — 2 m/s |
| 2020 |
+22°C
|
+15°C
|
+19°C | 10 h | 5 | 73% | 3 — 4 m/s |
| 2019 |
+18°C
|
+11°C
|
+14°C | 10 h | 3 | 77% | 3 — 5 m/s |