Weather in Koper on 11 August 2026
Preliminary outlook for 11 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +32°C and nighttime around +22°C, average precipitation 0 mm, wind around 3 m/s, humidity around 53%.
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.
+28°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +23°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 46%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +34°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 4% |
| Pressure (avg.) | 763 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 64° ↗ (NE) |
Sunrise
06:01
Duration
14 h 18 min
Sunset
20:19
Moonrise
21:21
Moonset
08:08
Moon phase
Waning Gibbous
Illumination
80%
+29°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +23°C
Sea temperature: +26°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +35°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 3% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +26°C |
| Feels like (avg.) | +31°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 185° ← (WNW) |
Sunrise
06:01
Duration
14 h 17 min
Sunset
20:18
Moonrise
13:32
Moonset
23:05
Moon phase
First Quarter
Illumination
42%
+23°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 65%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 10% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +24°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +24°C | Wind chill (avg.) | +23°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 197° ↖ (NW) |
Sunrise
06:00
Duration
14 h 20 min
Sunset
20:20
Moonrise
00:48
Moonset
17:37
Moon phase
Waning Crescent
Illumination
28%
+25°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +21°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 39%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 27% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +25°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +25°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 78° ↗ (ENE) |
Sunrise
06:00
Duration
14 h 19 min
Sunset
20:19
Moonrise
20:23
Moonset
04:10
Moon phase
Waxing Gibbous
Illumination
95%
+28°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 55%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 19% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 161° ↘ (SSE) |
Sunrise
06:01
Duration
14 h 18 min
Sunset
20:19
Moonrise
08:50
Moonset
22:04
Moon phase
Waxing Crescent
Illumination
18%
+27°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
Humidity: 58%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 19% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 129° ↙ (WSW) |
Sunrise
06:01
Duration
14 h 17 min
Sunset
20:18
Moonrise
Does not rise today
Moonset
14:09
Moon phase
Last Quarter
Illumination
45%
Weather in Koper on 11 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+34°C
|
+23°C
|
+28°C | 14 h | 7 | 46% | 5 — 6 m/s |
| 2024 |
+35°C
|
+23°C
|
+29°C | 14 h | 7 | 54% | 2 — 2 m/s |
| 2023 |
+28°C
|
+19°C
|
+23°C | 14 h | 6 | 65% | 2 — 3 m/s |
| 2022 |
+31°C
|
+21°C
|
+25°C | 14 h | 6 | 39% | 3 — 4 m/s |
| 2021 |
+33°C
|
+23°C
|
+28°C | 14 h | 7 | 55% | 2 — 3 m/s |
| 2020 |
+31°C
|
+23°C
|
+27°C | 11 h | 7 | 58% | 2 — 2 m/s |