Weather in Irkutsk on 18 August 2026
Preliminary outlook for 18 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +22°C and nighttime around +10°C, average precipitation 0.6 mm, wind around 2 m/s, humidity around 72%.
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.
+18°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +12°C
Precipitation: 0.1 mm
Wind: 1 — 2 m/s
Humidity: 70%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 13 h |
| UV index | 5 | Cloud cover (avg.) | 40% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 271° ↑ (N) |
Sunrise
05:51
Duration
14 h 30 min
Sunset
20:21
Moonrise
No moonrise
Moonset
17:47
Moon phase
Last Quarter
Illumination
29%
+19°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +11°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 67%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 2% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +20°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 148° ↘ (SSE) |
Sunrise
05:51
Duration
14 h 30 min
Sunset
20:21
Moonrise
20:12
Moonset
02:50
Moon phase
Waxing Gibbous
Illumination
93%
+14°C
Weather archive — for 2023 year
Partly Cloudy
Weather archive — for 2023 year
Nighttime: +9°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
Humidity: 75%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 9 h |
| UV index | 4 | Cloud cover (avg.) | 39% |
| 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.) | +9°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 205° ↑ (N) |
Sunrise
05:50
Duration
14 h 32 min
Sunset
20:22
Moonrise
07:24
Moonset
21:17
Moon phase
Waxing Crescent
Illumination
9%
+12°C
Weather archive — for 2022 year
Patchy rain nearby
Weather archive — for 2022 year
Nighttime: +10°C
Precipitation: 0.5 mm
Wind: 1 — 2 m/s
Humidity: 70%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +15°C | Sun hours | 8 h |
| UV index | 4 | Cloud cover (avg.) | 73% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +12°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +12°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 181° ↖ (NW) |
Sunrise
05:50
Duration
14 h 32 min
Sunset
20:22
Moonrise
22:45
Moonset
13:30
Moon phase
Waning Gibbous
Illumination
54%
+14°C
Weather archive — for 2021 year
Moderate rain at times
Weather archive — for 2021 year
Nighttime: +11°C
Precipitation: 3.2 mm
Wind: 3 — 5 m/s
Humidity: 91%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +17°C | Sun hours | 9 h |
| UV index | 3 | Cloud cover (avg.) | 83% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 6 km | Sea temperature | — |
| Feels like (avg.) | +13°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 290° ← (WNW) |
Sunrise
05:51
Duration
14 h 30 min
Sunset
20:21
Moonrise
17:59
Moonset
00:17
Moon phase
Waxing Gibbous
Illumination
69%
+18°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +9°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 58%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 6% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +7°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 141° ↘ (SSE) |
Sunrise
05:51
Duration
14 h 30 min
Sunset
20:21
Moonrise
04:02
Moonset
20:26
Moon phase
New Moon
Illumination
0%
+15°C
Weather archive — for 2019 year
Overcast
Weather archive — for 2019 year
Nighttime: +10°C
Precipitation: 0.6 mm
Wind: 1 — 2 m/s
Humidity: 76%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 13 h |
| UV index | 4 | Cloud cover (avg.) | 60% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 239° ↖ (NNW) |
Sunrise
05:50
Duration
14 h 32 min
Sunset
20:22
Moonrise
21:46
Moonset
08:16
Moon phase
Waning Gibbous
Illumination
78%
Weather in Irkutsk on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+26°C
|
+12°C
|
+18°C | 13 h | 5 | 70% | 1 — 2 m/s |
| 2024 |
+29°C
|
+11°C
|
+19°C | 15 h | 5 | 67% | 2 — 3 m/s |
| 2023 |
+20°C
|
+9°C
|
+14°C | 9 h | 4 | 75% | 2 — 2 m/s |
| 2022 |
+15°C
|
+10°C
|
+12°C | 8 h | 4 | 70% | 1 — 2 m/s |
| 2021 |
+17°C
|
+11°C
|
+14°C | 9 h | 3 | 91% | 3 — 5 m/s |
| 2020 |
+24°C
|
+9°C
|
+18°C | 15 h | 5 | 58% | 3 — 4 m/s |
| 2019 |
+20°C
|
+10°C
|
+15°C | 13 h | 4 | 76% | 1 — 2 m/s |