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December

Plogoff Weather in December with Sea Temperature

December weather in Plogoff includes average daytime air +11°C, nighttime +8°C, average sea temperature +12°C. Daily water temperatures usually range from +12°C to +13°C, which is cool for long swims. The tables below also show air temperature, wind, rain and humidity; for near-term water data, open the current 30-day water temperature forecast.

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Averaged values across several years

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water

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December	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+12°C	+9°C	+13°C	8 m/s	0.9 mm	82%
2Tue	+10°C	+8°C	+13°C	6 m/s	0.4 mm	72%
3Wed	+11°C	+8°C	+13°C	6 m/s	1.3 mm	76%
4Thu	+10°C	+7°C	+13°C	8 m/s	0.5 mm	75%
5Fri	+11°C	+8°C	+13°C	8 m/s	1.4 mm	76%
6Sat	+11°C	+8°C	+13°C	7 m/s	0.1 mm	76%
7Sun	+11°C	+8°C	+13°C	9 m/s	1.7 mm	80%
8Mon	+10°C	+8°C	+13°C	8 m/s	0.6 mm	76%
9Tue	+11°C	+8°C	+13°C	8 m/s	1.4 mm	79%
10Wed	+11°C	+8°C	+13°C	7 m/s	0.5 mm	79%
11Thu	+12°C	+8°C	+13°C	6 m/s	0.6 mm	82%
12Fri	+10°C	+8°C	+13°C	6 m/s	0.4 mm	77%
13Sat	+10°C	+7°C	+13°C	6 m/s	0.4 mm	78%
14Sun	+11°C	+8°C	+12°C	6 m/s	0.4 mm	83%
15Mon	+11°C	+8°C	+12°C	6 m/s	0.5 mm	79%
16Tue	+11°C	+8°C	+12°C	5 m/s	0.3 mm	79%
17Wed	+11°C	+8°C	+12°C	6 m/s	0.1 mm	78%
18Thu	+13°C	+9°C	+12°C	9 m/s	1.7 mm	85%
19Fri	+13°C	+10°C	+12°C	8 m/s	1.3 mm	79%
20Sat	+11°C	+8°C	+12°C	7 m/s	0.3 mm	78%
21Sun	+11°C	+9°C	+12°C	7 m/s	0.8 mm	82%
22Mon	+12°C	+9°C	+12°C	8 m/s	1.3 mm	83%
23Tue	+13°C	+10°C	+12°C	8 m/s	1 mm	84%
24Wed	+11°C	+10°C	+12°C	8 m/s	0.6 mm	84%
25Thu	+11°C	+8°C	+12°C	6 m/s	0.8 mm	81%
26Fri	+11°C	+7°C	+12°C	5 m/s	0.3 mm	79%
27Sat	+11°C	+8°C	+12°C	8 m/s	1.2 mm	81%
28Sun	+11°C	+8°C	+12°C	9 m/s	1 mm	81%
29Mon	+11°C	+9°C	+12°C	7 m/s	0.4 mm	82%
30Tue	+11°C	+8°C	+12°C	8 m/s	1.3 mm	81%
31Wed	+11°C	+8°C	+12°C	9 m/s	1.3 mm	79%

Sea water temperature by months

Water +12°C

Day and night air temperature

Day +11°C Night +8°C

Weather highs and lows in Plogoff for december

Warmest day: 18 december, +13°C
Coldest night: 4 december, +7°C
Max precipitation: 7 december, 1.7 mm
Warmest sea water: 1 december, +13°C
Coldest sea water: 14 december, +12°C

Climate in Plogoff in december

Average daytime temperature: +11°C
Average nighttime temperature: +8°C
Sea water temperature: —
Precipitation (monthly average): 24.7 mm
Days with precipitation: 8.5
Humidity: 80%
Wind: 7 m/s
Data: 6 years / coverage 100%

Daily air temperature for the month

Day Night

Tap a date to open detailed weather for that day

December	Day	Night	Sea t°	Wind	Precip	Humidity
1Mon	+12°C	+11°C	—	13-16 m/s, SSW	1.5 mm	82%
2Tue	+11°C	+9°C	—	8-10 m/s, WSW	1.2 mm	72%
3Wed	+11°C	+9°C	—	6-8 m/s, WSW	1.2 mm	72%
4Thu	+11°C	+8°C	—	10-11 m/s, W	1.1 mm	71%
5Fri	+14°C	+9°C	—	10-15 m/s, S	2.7 mm	77%
6Sat	+13°C	+12°C	—	12-14 m/s, WSW	0.6 mm	78%
7Sun	+14°C	+13°C	—	11-15 m/s, SW	1.6 mm	90%
8Mon	+14°C	+12°C	—	7-12 m/s, SW	1.6 mm	91%
9Tue	+15°C	+12°C	—	12-15 m/s, S	2 mm	84%
10Wed	+13°C	+10°C	—	5-8 m/s, W	0.1 mm	85%
11Thu	+13°C	+10°C	—	7-9 m/s, S	0.1 mm	88%
12Fri	+12°C	+10°C	—	5-9 m/s, NW	0.5 mm	75%
13Sat	+11°C	+9°C	—	2-3 m/s, NNE	0 mm	81%
14Sun	+12°C	+8°C	—	6-7 m/s, S	0 mm	86%
15Mon	+13°C	+12°C	—	9-11 m/s, SSW	1.2 mm	89%
16Tue	+11°C	+9°C	—	6-7 m/s, N	0 mm	78%
17Wed	+11°C	+9°C	—	6-11 m/s, SSW	0.2 mm	74%
18Thu	+13°C	+10°C	—	12-17 m/s, S	4.8 mm	88%
19Fri	+11°C	+10°C	—	6-8 m/s, WSW	0.4 mm	70%
20Sat	+11°C	+9°C	—	8-12 m/s, S	0.6 mm	74%
21Sun	+9°C	+8°C	—	3-6 m/s, E	0.2 mm	76%
22Mon	+10°C	+8°C	—	4 m/s, SSE	0.1 mm	86%
23Tue	+11°C	+8°C	—	6-7 m/s, ESE	0.1 mm	83%
24Wed	+10°C	+6°C	—	10-12 m/s, NE	0 mm	72%
25Thu	+7°C	0°C	—	9-12 m/s, E	0 mm	65%
26Fri	+7°C	+1°C	—	6-7 m/s, ENE	0 mm	74%
27Sat	+8°C	+4°C	—	7-8 m/s, ENE	0 mm	74%
28Sun	+9°C	+4°C	—	7-8 m/s, ENE	0 mm	75%
29Mon	+8°C	+4°C	—	5-6 m/s, ENE	0 mm	80%
30Tue	+7°C	+4°C	—	7-9 m/s, E	0 mm	76%
31Wed	+7°C	+3°C	—	5-6 m/s, E	0 mm	71%

Weather highs and lows in Plogoff for december

Warmest day: 9 december, +15°C
Coldest night: 25 december, 0°C
Max precipitation: 18 december, 4.8 mm
Warmest water: —
Coldest water: —

Climate in Plogoff in december

Year: 2025
Average daytime temperature: +11°C
Average nighttime temperature: +8°C
Water temperature: —
Precipitation (month): 21.8 mm
Days with precipitation: 10
Humidity: 79%
Wind: 7 m/s

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water

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December	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+15°C	+13°C	+13°C	8-9 m/s, SW	1.9 mm	91%
2Mon	+12°C	+9°C	+13°C	7-8 m/s, NW	0.1 mm	72%
3Tue	+10°C	+8°C	+13°C	3-4 m/s, SSE	0.2 mm	69%
4Wed	+13°C	+9°C	+13°C	5-9 m/s, SSW	0 mm	86%
5Thu	+15°C	+12°C	+13°C	9-10 m/s, SW	3.4 mm	94%
6Fri	+14°C	+10°C	+13°C	7-9 m/s, SW	0.2 mm	81%
7Sat	+14°C	+8°C	+13°C	14-16 m/s, NW	0.2 mm	78%
8Sun	+10°C	+8°C	+13°C	13-14 m/s, N	0.7 mm	71%
9Mon	+10°C	+9°C	+13°C	9-11 m/s, NNE	0.8 mm	77%
10Tue	+9°C	+7°C	+13°C	6-8 m/s, ENE	0.3 mm	80%
11Wed	+8°C	+6°C	+13°C	5-6 m/s, ENE	0 mm	73%
12Thu	+8°C	+4°C	+13°C	5-6 m/s, E	0 mm	75%
13Fri	+7°C	+4°C	+13°C	2-3 m/s, E	0 mm	71%
14Sat	+9°C	+6°C	+12°C	4-6 m/s, NNW	0.1 mm	78%
15Sun	+12°C	+8°C	+12°C	5-6 m/s, WNW	0.1 mm	78%
16Mon	+12°C	+10°C	+12°C	4-5 m/s, S	0.2 mm	86%
17Tue	+14°C	+10°C	+12°C	7-9 m/s, SSE	0 mm	83%
18Wed	+14°C	+13°C	+12°C	11-13 m/s, SW	0.5 mm	91%
19Thu	+13°C	+8°C	+12°C	10-11 m/s, NW	0.6 mm	70%
20Fri	+12°C	+8°C	+12°C	7-9 m/s, W	0.5 mm	72%
21Sat	+13°C	+10°C	+12°C	8-10 m/s, W	0.1 mm	81%
22Sun	+12°C	+8°C	+12°C	12-13 m/s, NW	0.6 mm	74%
23Mon	+12°C	+9°C	+12°C	8-10 m/s, NNW	1.1 mm	70%
24Tue	+13°C	+12°C	+12°C	4-7 m/s, NW	0.3 mm	94%
25Wed	+13°C	+12°C	+12°C	1-2 m/s, SE	0.1 mm	90%
26Thu	+12°C	+9°C	+12°C	3 m/s, E	0 mm	85%
27Fri	+11°C	+8°C	+12°C	2-3 m/s, ENE	0 mm	86%
28Sat	+10°C	+7°C	+12°C	2 m/s, NE	0 mm	80%
29Sun	+11°C	+9°C	+12°C	2 m/s, NNE	0.1 mm	82%
30Mon	+10°C	+10°C	+12°C	3-4 m/s, S	0 mm	72%
31Tue	+12°C	+9°C	+12°C	7-10 m/s, SW	0 mm	82%

Weather highs and lows in Plogoff for december

Warmest day: 1 december, +15°C
Coldest night: 12 december, +4°C
Max precipitation: 5 december, 3.4 mm
Warmest water: 1 december, +13°C
Coldest water: 14 december, +12°C

Climate in Plogoff in december

Year: 2024
Average daytime temperature: +12°C
Average nighttime temperature: +9°C
Water temperature: —
Precipitation (month): 12.1 mm
Days with precipitation: 3
Humidity: 80%
Wind: 6 m/s

Daily air temperature for the month

Day Night

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December	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+8°C	+6°C	—	6-7 m/s, NE	0 mm	81%
2Sat	+9°C	+5°C	—	3-4 m/s, NNW	0.5 mm	67%
3Sun	+12°C	+9°C	—	7-10 m/s, SSW	2.5 mm	76%
4Mon	+12°C	+8°C	—	10-13 m/s, WNW	0.4 mm	79%
5Tue	+10°C	+8°C	—	9-11 m/s, NW	0 mm	61%
6Wed	+12°C	+6°C	—	5-10 m/s, SSE	0 mm	74%
7Thu	+13°C	+10°C	—	10-12 m/s, S	3.9 mm	86%
8Fri	+12°C	+11°C	—	8 m/s, WSW	0.5 mm	80%
9Sat	+14°C	+11°C	—	12-14 m/s, WSW	4.6 mm	90%
10Sun	+14°C	+11°C	—	9-10 m/s, SW	0.4 mm	88%
11Mon	+14°C	+12°C	—	7-8 m/s, SW	0.2 mm	91%
12Tue	+13°C	+11°C	—	9-11 m/s, SW	1.5 mm	88%
13Wed	+11°C	+10°C	—	9 m/s, NNW	0.1 mm	78%
14Thu	+12°C	+9°C	—	6-7 m/s, NW	0.3 mm	80%
15Fri	+11°C	+9°C	—	2-4 m/s, N	0 mm	71%
16Sat	+10°C	+8°C	—	3-4 m/s, SE	0 mm	77%
17Sun	+11°C	+8°C	—	5 m/s, SSW	0 mm	84%
18Mon	+13°C	+11°C	—	6 m/s, SW	0 mm	86%
19Tue	+13°C	+10°C	—	7-9 m/s, SW	1.5 mm	91%
20Wed	+12°C	+10°C	—	8-9 m/s, NW	0 mm	74%
21Thu	+12°C	+11°C	—	10 m/s, WNW	0.4 mm	88%
22Fri	+12°C	+10°C	—	9 m/s, NW	0.3 mm	79%
23Sat	+12°C	+11°C	—	7-8 m/s, W	0.1 mm	80%
24Sun	+12°C	+11°C	—	9 m/s, SW	0.1 mm	88%
25Mon	+13°C	+12°C	—	9 m/s, WSW	0 mm	86%
26Tue	+13°C	+11°C	—	6-9 m/s, S	1.1 mm	88%
27Wed	+13°C	+11°C	—	11-15 m/s, SSW	0.6 mm	82%
28Thu	+12°C	+11°C	—	11 m/s, SW	0.1 mm	82%
29Fri	+12°C	+10°C	—	9-11 m/s, WSW	0.5 mm	86%
30Sat	+12°C	+9°C	—	10-14 m/s, SSW	0.3 mm	88%
31Sun	+10°C	+9°C	—	13-15 m/s, WSW	2.9 mm	77%

Weather highs and lows in Plogoff for december

Warmest day: 9 december, +14°C
Coldest night: 2 december, +5°C
Max precipitation: 9 december, 4.6 mm
Warmest water: —
Coldest water: —

Climate in Plogoff in december

Year: 2023
Average daytime temperature: +12°C
Average nighttime temperature: +10°C
Water temperature: —
Precipitation (month): 22.8 mm
Days with precipitation: 7
Humidity: 81%
Wind: 8 m/s

Daily air temperature for the month

Day Night

Tap a date to open detailed weather for that day

December	Day	Night	Sea t°	Wind	Precip	Humidity
1Thu	+11°C	+6°C	—	4-5 m/s, E	0 mm	78%
2Fri	+9°C	+5°C	—	4-5 m/s, ENE	0 mm	74%
3Sat	+9°C	+5°C	—	6-7 m/s, ENE	0 mm	72%
4Sun	+7°C	+3°C	—	4-5 m/s, E	0 mm	74%
5Mon	+8°C	+4°C	—	5-6 m/s, ESE	0 mm	83%
6Tue	+9°C	+4°C	—	5-6 m/s, E	0 mm	79%
7Wed	+8°C	+5°C	—	3-4 m/s, ESE	0 mm	79%
8Thu	+8°C	+5°C	—	4-5 m/s, ENE	0 mm	72%
9Fri	+6°C	+3°C	—	3-4 m/s, E	0 mm	73%
10Sat	+6°C	+1°C	—	2 m/s, SSE	0 mm	71%
11Sun	+8°C	+3°C	—	2-3 m/s, S	0 mm	70%
12Mon	+6°C	+2°C	—	5-7 m/s, ESE	0 mm	73%
13Tue	+6°C	+1°C	—	6 m/s, SE	0.2 mm	63%
14Wed	+8°C	+5°C	—	6 m/s, SW	1.2 mm	90%
15Thu	+8°C	+3°C	—	9-10 m/s, ENE	1.2 mm	78%
16Fri	+7°C	+3°C	—	4-6 m/s, ESE	0 mm	70%
17Sat	+4°C	+1°C	—	4 m/s, SE	0 mm	68%
18Sun	+13°C	+2°C	—	9-12 m/s, S	4.5 mm	85%
19Mon	+15°C	+13°C	—	12-13 m/s, S	2.8 mm	87%
20Tue	+13°C	+10°C	—	5-12 m/s, SSE	0 mm	93%
21Wed	+12°C	+10°C	—	7-9 m/s, WSW	2.6 mm	79%
22Thu	+14°C	+12°C	—	9 m/s, S	2.9 mm	94%
23Fri	+14°C	+12°C	—	9-12 m/s, WSW	4 mm	90%
24Sat	+12°C	+11°C	—	7-8 m/s, SSW	0.7 mm	85%
25Sun	+12°C	+9°C	—	6-7 m/s, WNW	2.1 mm	88%
26Mon	+10°C	+8°C	—	5-7 m/s, NW	0.1 mm	64%
27Tue	+12°C	+9°C	—	7-9 m/s, SSW	0.8 mm	72%
28Wed	+13°C	+11°C	—	11-14 m/s, SSW	4.3 mm	86%
29Thu	+11°C	+10°C	—	8-10 m/s, WSW	0.4 mm	74%
30Fri	+14°C	+10°C	—	10-13 m/s, SW	6.3 mm	84%
31Sat	+15°C	+13°C	—	14-16 m/s, SSW	4.2 mm	88%

Weather highs and lows in Plogoff for december

Warmest day: 19 december, +15°C
Coldest night: 10 december, +1°C
Max precipitation: 30 december, 6.3 mm
Warmest water: —
Coldest water: —

Climate in Plogoff in december

Year: 2022
Average daytime temperature: +10°C
Average nighttime temperature: +6°C
Water temperature: —
Precipitation (month): 38.3 mm
Days with precipitation: 11
Humidity: 79%
Wind: 6 m/s

Daily air temperature for the month

Day Night

Tap a date to open detailed weather for that day

December	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+12°C	+9°C	—	10-11 m/s, WNW	1.4 mm	80%
2Thu	+9°C	+8°C	—	7-8 m/s, NNW	0.3 mm	69%
3Fri	+13°C	+8°C	—	8-12 m/s, W	2 mm	87%
4Sat	+12°C	+9°C	—	9-11 m/s, WNW	0.4 mm	73%
5Sun	+11°C	+7°C	—	9-10 m/s, NNW	1 mm	64%
6Mon	+11°C	+8°C	—	7-9 m/s, NW	0 mm	72%
7Tue	+11°C	+7°C	—	9-12 m/s, S	3.4 mm	72%
8Wed	+9°C	+5°C	—	9-10 m/s, WNW	1 mm	66%
9Thu	+11°C	+8°C	—	6-9 m/s, W	0.8 mm	74%
10Fri	+10°C	+8°C	—	10-12 m/s, NW	0.1 mm	67%
11Sat	+13°C	+9°C	—	5-6 m/s, SW	0.5 mm	86%
12Sun	+13°C	+12°C	—	5-6 m/s, SSW	0.4 mm	82%
13Mon	+13°C	+11°C	—	6-7 m/s, SSE	0 mm	87%
14Tue	+13°C	+10°C	—	2-3 m/s, S	0 mm	90%
15Wed	+13°C	+9°C	—	2 m/s, E	0 mm	86%
16Thu	+12°C	+8°C	—	4-5 m/s, E	0 mm	82%
17Fri	+13°C	+8°C	—	5-7 m/s, ENE	0 mm	80%
18Sat	+12°C	+7°C	—	5-6 m/s, E	0 mm	74%
19Sun	+11°C	+7°C	—	5-6 m/s, E	0 mm	78%
20Mon	+8°C	+5°C	—	5-6 m/s, E	0 mm	80%
21Tue	+8°C	+3°C	—	5 m/s, ESE	0 mm	74%
22Wed	+10°C	+4°C	—	6-7 m/s, SE	0 mm	72%
23Thu	+13°C	+10°C	—	6-8 m/s, SW	0 mm	94%
24Fri	+12°C	+11°C	—	7-8 m/s, SSW	0.4 mm	88%
25Sat	+12°C	+10°C	—	6 m/s, SE	2.7 mm	87%
26Sun	+12°C	+10°C	—	4-6 m/s, WSW	0.2 mm	90%
27Mon	+12°C	+11°C	—	8-9 m/s, SW	1.6 mm	92%
28Tue	+13°C	+11°C	—	9-11 m/s, WSW	0.1 mm	90%
29Wed	+14°C	+13°C	—	10-11 m/s, WSW	0.6 mm	94%
30Thu	+14°C	+13°C	—	9-10 m/s, SSW	0.3 mm	90%
31Fri	+15°C	+13°C	—	7-8 m/s, SSW	0.8 mm	88%

Weather highs and lows in Plogoff for december

Warmest day: 31 december, +15°C
Coldest night: 21 december, +3°C
Max precipitation: 7 december, 3.4 mm
Warmest water: —
Coldest water: —

Climate in Plogoff in december

Year: 2021
Average daytime temperature: +12°C
Average nighttime temperature: +9°C
Water temperature: —
Precipitation (month): 18 mm
Days with precipitation: 7
Humidity: 81%
Wind: 7 m/s

Daily air temperature for the month

Day Night

Tap a date to open detailed weather for that day

December	Day	Night	Sea t°	Wind	Precip	Humidity
1Tue	+12°C	+8°C	—	6 m/s, SE	0.4 mm	78%
2Wed	+11°C	+9°C	—	4-5 m/s, NNW	0.2 mm	77%
3Thu	+9°C	+7°C	—	7-9 m/s, WSW	1.8 mm	78%
4Fri	+7°C	+5°C	—	7-9 m/s, NW	0.8 mm	66%
5Sat	+9°C	+5°C	—	8-11 m/s, NW	1.5 mm	75%
6Sun	+8°C	+5°C	—	6-9 m/s, NNW	0 mm	72%
7Mon	+7°C	+5°C	—	5-8 m/s, SE	1.2 mm	76%
8Tue	+9°C	+5°C	—	4-5 m/s, NNW	0 mm	73%
9Wed	+10°C	+7°C	—	6-8 m/s, WSW	0.3 mm	77%
10Thu	+11°C	+9°C	—	8 m/s, WNW	2.3 mm	82%
11Fri	+13°C	+7°C	—	8-9 m/s, WNW	2.8 mm	83%
12Sat	+10°C	+7°C	—	9-11 m/s, WNW	0.1 mm	68%
13Sun	+13°C	+9°C	—	9-10 m/s, SSW	2 mm	85%
14Mon	+12°C	+10°C	—	9-11 m/s, SW	0.8 mm	76%
15Tue	+11°C	+9°C	—	7-8 m/s, SW	0.6 mm	73%
16Wed	+12°C	+7°C	—	8-11 m/s, WSW	1.4 mm	78%
17Thu	+12°C	+9°C	—	7-9 m/s, SW	0.4 mm	78%
18Fri	+13°C	+10°C	—	11-12 m/s, S	0.5 mm	86%
19Sat	+12°C	+11°C	—	9-10 m/s, SW	2.5 mm	76%
20Sun	+11°C	+8°C	—	6-8 m/s, WSW	0.6 mm	73%
21Mon	+14°C	+10°C	—	10-11 m/s, SW	1.3 mm	91%
22Tue	+13°C	+12°C	—	9-11 m/s, SW	4 mm	94%
23Wed	+13°C	+7°C	—	12-15 m/s, SSW	0.9 mm	88%
24Thu	+9°C	+6°C	—	9-10 m/s, N	2 mm	75%
25Fri	+7°C	+5°C	—	6 m/s, N	0 mm	69%
26Sat	+10°C	+5°C	—	6-9 m/s, W	0.1 mm	74%
27Sun	+11°C	+4°C	—	12-17 m/s, WNW	4 mm	79%
28Mon	+8°C	+5°C	—	12-15 m/s, NW	1.4 mm	72%
29Tue	+8°C	+6°C	—	8-10 m/s, NNW	0.5 mm	75%
30Wed	+8°C	+4°C	—	6-8 m/s, W	0.8 mm	74%
31Thu	+7°C	+3°C	—	5-6 m/s, NNW	0.2 mm	70%

Weather highs and lows in Plogoff for december

Warmest day: 21 december, +14°C
Coldest night: 31 december, +3°C
Max precipitation: 22 december, 4 mm
Warmest water: —
Coldest water: —

Climate in Plogoff in december

Year: 2020
Average daytime temperature: +10°C
Average nighttime temperature: +7°C
Water temperature: —
Precipitation (month): 35.4 mm
Days with precipitation: 13
Humidity: 77%
Wind: 8 m/s

Weather in Plogoff in december by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+11°C	+8°C	21.8 mm	10	—
2024	+12°C	+9°C	12.1 mm	3	—
2023	+12°C	+10°C	22.8 mm	7	—
2022	+10°C	+6°C	38.3 mm	11	—
2021	+12°C	+9°C	18 mm	7	—
2020	+10°C	+7°C	35.4 mm	13	—

Comparison december in Plogoff with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+10°C	+6°C	8	5
February	+10°C	+7°C	5	4
March	+11°C	+7°C	6	7
April	+13°C	+8°C	5	9
May	+16°C	+11°C	3	10
June	+18°C	+13°C	3	11
July	+19°C	+15°C	2	10
August	+20°C	+15°C	4	11
September	+19°C	+14°C	5	8
October	+16°C	+12°C	7	7
November	+13°C	+10°C	8	3
December	+11°C	+8°C	9	5