Weather in Calais on 15 August 2026
Preliminary outlook for 15 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +21°C and nighttime around +18°C, average precipitation 0.1 mm, wind around 5 m/s, humidity around 82%.
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.
+20°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +18°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 1% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 160° ↑ (NNE) |
Sunrise
06:40
Duration
14 h 33 min
Sunset
21:13
Moonrise
23:07
Moonset
14:08
Moon phase
Last Quarter
Illumination
51%
+18°C
Weather archive — for 2024 year
Patchy rain nearby
Weather archive — for 2024 year
Nighttime: +17°C
Sea temperature: +18°C
Precipitation: 0.1 mm
Wind: 7 — 9 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 12 h |
| UV index | 5 | Cloud cover (avg.) | 42% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +18°C |
| Feels like (avg.) | +18°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 232° ↙ (SW) |
Sunrise
06:40
Duration
14 h 33 min
Sunset
21:13
Moonrise
19:13
Moonset
00:57
Moon phase
Waxing Gibbous
Illumination
71%
+18°C
Weather archive — for 2023 year
Partly Cloudy
Weather archive — for 2023 year
Nighttime: +17°C
Precipitation: 0.4 mm
Wind: 4 — 5 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 9 h |
| UV index | 4 | Cloud cover (avg.) | 47% |
| Pressure (avg.) | 762 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.) | 9 m/s | Wind direction (avg.) | 250° ← (W) |
Sunrise
06:39
Duration
14 h 35 min
Sunset
21:14
Moonrise
05:18
Moonset
21:32
Moon phase
New Moon
Illumination
0%
+21°C
Weather archive — for 2022 year
Partly Cloudy
Weather archive — for 2022 year
Nighttime: +20°C
Precipitation: 0 mm
Wind: 5 — 7 m/s
Humidity: 76%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 12 h |
| UV index | 6 | Cloud cover (avg.) | 60% |
| Pressure (avg.) | 752 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.) | +23°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 254° ↙ (WSW) |
Sunrise
06:39
Duration
14 h 35 min
Sunset
21:14
Moonrise
22:55
Moonset
10:37
Moon phase
Waning Gibbous
Illumination
76%
+18°C
Weather archive — for 2021 year
Partly Cloudy
Weather archive — for 2021 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 5 — 8 m/s
Humidity: 83%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 15 h |
| UV index | 5 | Cloud cover (avg.) | 29% |
| Pressure (avg.) | 763 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.) | 15 m/s | Wind direction (avg.) | 233° ↙ (WSW) |
Sunrise
06:40
Duration
14 h 33 min
Sunset
21:13
Moonrise
14:33
Moonset
Does not set today
Moon phase
First Quarter
Illumination
47%
+19°C
Weather archive — for 2020 year
Cloudy
Weather archive — for 2020 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 3 — 3 m/s
Humidity: 92%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 10 h |
| UV index | 4 | Cloud cover (avg.) | 62% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 222° ↙ (WSW) |
Sunrise
06:40
Duration
14 h 33 min
Sunset
21:13
Moonrise
02:22
Moonset
19:22
Moon phase
Waning Crescent
Illumination
16%
Weather in Calais on 15 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+22°C
|
+18°C
|
+20°C | 15 h | 5 | 79% | 4 — 6 m/s |
| 2024 |
+19°C
|
+17°C
|
+18°C | 12 h | 5 | 80% | 7 — 9 m/s |
| 2023 |
+20°C
|
+17°C
|
+18°C | 9 h | 4 | 82% | 4 — 5 m/s |
| 2022 |
+23°C
|
+20°C
|
+21°C | 12 h | 6 | 76% | 5 — 7 m/s |
| 2021 |
+19°C
|
+16°C
|
+18°C | 15 h | 5 | 83% | 5 — 8 m/s |
| 2020 |
+21°C
|
+18°C
|
+19°C | 10 h | 4 | 92% | 3 — 3 m/s |