Weather in Roscoff on 20 December 2026
Preliminary outlook for 20 December 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +11°C and nighttime around +9°C, average precipitation 0.4 mm, wind around 8 m/s, humidity around 78%.
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.
+9°C
Weather archive — latest year: 2025
Overcast
Weather archive — latest year: 2025
Nighttime: +7°C
Precipitation: 0.5 mm
Wind: 8 — 10 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +11°C | Sun hours | 1 h |
| UV index | 3 | Cloud cover (avg.) | 53% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +6°C | Dew point (avg.) | +5°C |
| Heat index (avg.) | +9°C | Wind chill (avg.) | +6°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 196° ↓ (S) |
Sunrise
09:05
Duration
8 h 16 min
Sunset
17:21
Moonrise
10:13
Moonset
17:31
Moon phase
New Moon
Illumination
0%
+11°C
Weather archive — for 2024 year
Partly Cloudy
Weather archive — for 2024 year
Nighttime: +10°C
Sea temperature: +12°C
Precipitation: 1.5 mm
Wind: 9 — 11 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +12°C | Sun hours | 4 h |
| UV index | 3 | Cloud cover (avg.) | 76% |
| Pressure (avg.) | 770 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +12°C |
| Feels like (avg.) | +7°C | Dew point (avg.) | +5°C |
| Heat index (avg.) | +11°C | Wind chill (avg.) | +7°C |
| Wind gusts (max.) | 16 m/s | Wind direction (avg.) | 280° ↙ (WSW) |
Sunrise
09:05
Duration
8 h 16 min
Sunset
17:21
Moonrise
23:23
Moonset
12:42
Moon phase
Waning Gibbous
Illumination
64%
+11°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +11°C
Precipitation: 0.1 mm
Wind: 10 — 11 m/s
Humidity: 71%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +12°C | Sun hours | 3 h |
| UV index | 4 | Cloud cover (avg.) | 86% |
| Pressure (avg.) | 771 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +8°C | Dew point (avg.) | +6°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +8°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 316° ↖ (NW) |
Sunrise
09:05
Duration
8 h 16 min
Sunset
17:21
Moonrise
13:35
Moonset
00:47
Moon phase
First Quarter
Illumination
51%
+12°C
Weather archive — for 2022 year
Overcast
Weather archive — for 2022 year
Nighttime: +10°C
Precipitation: 0 mm
Wind: 7 — 13 m/s
Humidity: 90%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +14°C | Sun hours | 1 h |
| UV index | 3 | Cloud cover (avg.) | 97% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +10°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +10°C |
| Wind gusts (max.) | 19 m/s | Wind direction (avg.) | 220° ↘ (SSE) |
Sunrise
09:05
Duration
8 h 16 min
Sunset
17:21
Moonrise
05:32
Moonset
14:59
Moon phase
Waning Crescent
Illumination
11%
+8°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +6°C
Precipitation: 0.1 mm
Wind: 6 — 6 m/s
Humidity: 85%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +8°C | Sun hours | 8 h |
| UV index | 3 | Cloud cover (avg.) | 50% |
| Pressure (avg.) | 770 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +4°C | Dew point (avg.) | +6°C |
| Heat index (avg.) | +8°C | Wind chill (avg.) | +4°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 94° → (E) |
Sunrise
09:05
Duration
8 h 16 min
Sunset
17:21
Moonrise
18:30
Moonset
10:42
Moon phase
Waxing Gibbous
Illumination
89%
+10°C
Weather archive — for 2020 year
Partly Cloudy
Weather archive — for 2020 year
Nighttime: +9°C
Precipitation: 0.2 mm
Wind: 7 — 8 m/s
Humidity: 73%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +11°C | Sun hours | 4 h |
| UV index | 3 | Cloud cover (avg.) | 78% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +8°C | Dew point (avg.) | +6°C |
| Heat index (avg.) | +11°C | Wind chill (avg.) | +8°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 229° ↙ (WSW) |
Sunrise
09:05
Duration
8 h 16 min
Sunset
17:21
Moonrise
13:20
Moonset
Does not set today
Moon phase
Waxing Crescent
Illumination
34%
Weather in Roscoff on 20 December in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+11°C
|
+7°C
|
+9°C | 1 h | 3 | 79% | 8 — 10 m/s |
| 2024 |
+12°C
|
+10°C
|
+11°C | 4 h | 3 | 70% | 9 — 11 m/s |
| 2023 |
+12°C
|
+11°C
|
+11°C | 3 h | 4 | 71% | 10 — 11 m/s |
| 2022 |
+14°C
|
+10°C
|
+12°C | 1 h | 3 | 90% | 7 — 13 m/s |
| 2021 |
+8°C
|
+6°C
|
+8°C | 8 h | 3 | 85% | 6 — 6 m/s |
| 2020 |
+11°C
|
+9°C
|
+10°C | 4 h | 3 | 73% | 7 — 8 m/s |