Weather in Concarneau on 18 December 2026
Preliminary outlook for 18 December 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +13°C and nighttime around +8°C, average precipitation 1.5 mm, wind around 7 m/s, humidity around 86%.
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.
+12°C
Weather archive — latest year: 2025
Light drizzle
Weather archive — latest year: 2025
Nighttime: +9°C
Precipitation: 3.6 mm
Wind: 10 — 13 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +14°C | Sun hours | 1 h |
| UV index | 3 | Cloud cover (avg.) | 92% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 5 km | Sea temperature | — |
| Feels like (avg.) | +9°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +9°C |
| Wind gusts (max.) | 20 m/s | Wind direction (avg.) | 204° ↓ (S) |
Sunrise
09:00
Duration
8 h 24 min
Sunset
17:24
Moonrise
08:18
Moonset
15:54
Moon phase
Waning Crescent
Illumination
1%
+13°C
Weather archive — for 2024 year
Patchy rain nearby
Weather archive — for 2024 year
Nighttime: +13°C
Sea temperature: +12°C
Precipitation: 0.7 mm
Wind: 8 — 9 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +14°C | Sun hours | 2 h |
| UV index | 3 | Cloud cover (avg.) | 86% |
| Pressure (avg.) | 763 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +12°C |
| Feels like (avg.) | +11°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +11°C |
| Wind gusts (max.) | 16 m/s | Wind direction (avg.) | 218° ↙ (SW) |
Sunrise
09:00
Duration
8 h 24 min
Sunset
17:24
Moonrise
20:46
Moonset
11:55
Moon phase
Waning Gibbous
Illumination
79%
+10°C
Weather archive — for 2023 year
Partly Cloudy
Weather archive — for 2023 year
Nighttime: +8°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 88%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +12°C | Sun hours | 4 h |
| UV index | 3 | Cloud cover (avg.) | 41% |
| Pressure (avg.) | 776 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +8°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +10°C | Wind chill (avg.) | +8°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 225° ↙ (SW) |
Sunrise
09:00
Duration
8 h 24 min
Sunset
17:24
Moonrise
13:00
Moonset
23:28
Moon phase
Waxing Crescent
Illumination
37%
+9°C
Weather archive — for 2022 year
Moderate or heavy rain shower
Weather archive — for 2022 year
Nighttime: +2°C
Precipitation: 4.3 mm
Wind: 8 — 9 m/s
Humidity: 87%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +12°C | Sun hours | 1 h |
| UV index | 3 | Cloud cover (avg.) | 77% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +4°C | Dew point (avg.) | +6°C |
| Heat index (avg.) | +7°C | Wind chill (avg.) | +4°C |
| Wind gusts (max.) | 16 m/s | Wind direction (avg.) | 153° ↓ (S) |
Sunrise
09:00
Duration
8 h 24 min
Sunset
17:24
Moonrise
03:07
Moonset
14:24
Moon phase
Waning Crescent
Illumination
26%
+8°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +5°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 75%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +12°C | Sun hours | 8 h |
| UV index | 3 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 774 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +4°C | Dew point (avg.) | +4°C |
| Heat index (avg.) | +8°C | Wind chill (avg.) | +4°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 84° → (E) |
Sunrise
09:00
Duration
8 h 24 min
Sunset
17:24
Moonrise
16:55
Moonset
08:46
Moon phase
Waxing Gibbous
Illumination
97%
+12°C
Weather archive — for 2020 year
Cloudy
Weather archive — for 2020 year
Nighttime: +10°C
Precipitation: 0.3 mm
Wind: 9 — 9 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +13°C | Sun hours | 2 h |
| UV index | 3 | Cloud cover (avg.) | 92% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 7 km | Sea temperature | — |
| Feels like (avg.) | +9°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +9°C |
| Wind gusts (max.) | 17 m/s | Wind direction (avg.) | 187° ↓ (S) |
Sunrise
09:00
Duration
8 h 24 min
Sunset
17:24
Moonrise
12:22
Moonset
21:37
Moon phase
Waxing Crescent
Illumination
20%
Weather in Concarneau on 18 December in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+14°C
|
+9°C
|
+12°C | 1 h | 3 | 86% | 10 — 13 m/s |
| 2024 |
+14°C
|
+13°C
|
+13°C | 2 h | 3 | 92% | 8 — 9 m/s |
| 2023 |
+12°C
|
+8°C
|
+10°C | 4 h | 3 | 88% | 3 — 4 m/s |
| 2022 |
+12°C
|
+2°C
|
+9°C | 1 h | 3 | 87% | 8 — 9 m/s |
| 2021 |
+12°C
|
+5°C
|
+8°C | 8 h | 3 | 75% | 5 — 6 m/s |
| 2020 |
+13°C
|
+10°C
|
+12°C | 2 h | 3 | 86% | 9 — 9 m/s |