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October

Boulogne-sur-Mer Weather in October with Sea Temperature

October weather in Boulogne-sur-Mer includes average daytime air +15°C, nighttime +11°C, average sea temperature +16°C. Daily water temperatures usually range from +14°C to +18°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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October	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+16°C	+12°C	+18°C	7 m/s	1.4 mm	79%
2Thu	+17°C	+12°C	+18°C	5 m/s	1.7 mm	81%
3Fri	+16°C	+12°C	+17°C	6 m/s	0.8 mm	78%
4Sat	+15°C	+12°C	+17°C	8 m/s	1.1 mm	78%
5Sun	+16°C	+12°C	+17°C	7 m/s	0.9 mm	76%
6Mon	+16°C	+12°C	+16°C	7 m/s	0.1 mm	75%
7Tue	+16°C	+13°C	+16°C	6 m/s	0.2 mm	80%
8Wed	+17°C	+13°C	+16°C	5 m/s	0.4 mm	80%
9Thu	+17°C	+12°C	+16°C	4 m/s	0.7 mm	78%
10Fri	+16°C	+11°C	+16°C	5 m/s	0.5 mm	74%
11Sat	+15°C	+11°C	+16°C	4 m/s	0.3 mm	77%
12Sun	+15°C	+11°C	+16°C	4 m/s	0.3 mm	79%
13Mon	+14°C	+12°C	+15°C	5 m/s	1.8 mm	81%
14Tue	+14°C	+11°C	+15°C	5 m/s	0.3 mm	78%
15Wed	+15°C	+11°C	+16°C	5 m/s	0.2 mm	78%
16Thu	+15°C	+11°C	+16°C	4 m/s	0.1 mm	73%
17Fri	+15°C	+11°C	+16°C	4 m/s	0.5 mm	77%
18Sat	+16°C	+11°C	+15°C	4 m/s	0.3 mm	78%
19Sun	+17°C	+12°C	+15°C	7 m/s	0.7 mm	81%
20Mon	+17°C	+13°C	+15°C	8 m/s	1.6 mm	84%
21Tue	+15°C	+12°C	+15°C	8 m/s	1.8 mm	82%
22Wed	+15°C	+12°C	+16°C	6 m/s	1.4 mm	80%
23Thu	+15°C	+11°C	+15°C	6 m/s	0.9 mm	82%
24Fri	+15°C	+10°C	+15°C	8 m/s	0.5 mm	76%
25Sat	+14°C	+11°C	+15°C	7 m/s	1.4 mm	82%
26Sun	+14°C	+10°C	+15°C	7 m/s	1.3 mm	78%
27Mon	+14°C	+11°C	+14°C	7 m/s	0.7 mm	82%
28Tue	+15°C	+11°C	+14°C	8 m/s	2.2 mm	80%
29Wed	+15°C	+12°C	+15°C	7 m/s	2.3 mm	82%
30Thu	+15°C	+11°C	+15°C	6 m/s	0.5 mm	82%
31Fri	+15°C	+11°C	+15°C	7 m/s	0.5 mm	81%

Sea water temperature by months

Water +16°C

Day and night air temperature

Day +15°C Night +11°C

Weather highs and lows in Boulogne-sur-Mer for october

Warmest day: 2 october, +17°C
Coldest night: 24 october, +10°C
Max precipitation: 29 october, 2.3 mm
Warmest sea water: 1 october, +18°C
Coldest sea water: 27 october, +14°C

Climate in Boulogne-sur-Mer in october

Average daytime temperature: +15°C
Average nighttime temperature: +11°C
Sea water temperature: —
Precipitation (monthly average): 27.1 mm
Days with precipitation: 8.3
Humidity: 79%
Wind: 6 m/s
Data: 6 years / coverage 100%

Daily air temperature for the month

Day Night

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October	Day	Night	Sea t°	Wind	Precip	Humidity
1Wed	+16°C	+11°C	—	2 m/s, SE	0 mm	70%
2Thu	+18°C	+11°C	—	4-6 m/s, S	0 mm	69%
3Fri	+16°C	+12°C	—	8-9 m/s, SSW	0.2 mm	65%
4Sat	+17°C	+12°C	—	14-15 m/s, W	1.3 mm	78%
5Sun	+14°C	+11°C	—	11-13 m/s, WNW	0 mm	64%
6Mon	+16°C	+12°C	—	6-7 m/s, W	0 mm	78%
7Tue	+17°C	+14°C	—	4-5 m/s, WSW	0 mm	85%
8Wed	+16°C	+13°C	—	3-4 m/s, NNW	0 mm	82%
9Thu	+15°C	+12°C	—	2-3 m/s, NNW	0 mm	77%
10Fri	+16°C	+13°C	—	2-3 m/s, NNW	0 mm	83%
11Sat	+17°C	+12°C	—	3-5 m/s, NE	0 mm	80%
12Sun	+18°C	+12°C	—	4-6 m/s, NE	0 mm	83%
13Mon	+17°C	+13°C	—	5-7 m/s, NE	0 mm	87%
14Tue	+15°C	+12°C	—	5-7 m/s, NE	0.1 mm	82%
15Wed	+16°C	+13°C	—	6 m/s, NE	0.1 mm	80%
16Thu	+16°C	+12°C	—	4-5 m/s, ENE	0 mm	76%
17Fri	+16°C	+11°C	—	4-5 m/s, ENE	0 mm	76%
18Sat	+15°C	+9°C	—	4-6 m/s, ESE	0 mm	74%
19Sun	+15°C	+11°C	—	7-10 m/s, S	1.5 mm	76%
20Mon	+15°C	+13°C	—	10-12 m/s, S	1.4 mm	86%
21Tue	+14°C	+13°C	—	10-11 m/s, SW	1.7 mm	85%
22Wed	+14°C	+11°C	—	5-7 m/s, ENE	7 mm	91%
23Thu	+15°C	+9°C	—	16-18 m/s, WSW	4.1 mm	88%
24Fri	+12°C	+9°C	—	12-14 m/s, WSW	1.5 mm	66%
25Sat	+12°C	+8°C	—	9-14 m/s, WNW	1.2 mm	74%
26Sun	+12°C	+6°C	—	10 m/s, WNW	0 mm	69%
27Mon	+13°C	+10°C	—	11-14 m/s, WNW	0.9 mm	77%
28Tue	+14°C	+10°C	—	10-12 m/s, W	0.1 mm	80%
29Wed	+13°C	+11°C	—	8-10 m/s, SW	1.1 mm	87%
30Thu	+13°C	+10°C	—	7-9 m/s, SW	0 mm	69%
31Fri	+16°C	+11°C	—	9 m/s, S	0 mm	78%

Weather highs and lows in Boulogne-sur-Mer for october

Warmest day: 2 october, +18°C
Coldest night: 26 october, +6°C
Max precipitation: 22 october, 7 mm
Warmest water: —
Coldest water: —

Climate in Boulogne-sur-Mer in october

Year: 2025
Average daytime temperature: +15°C
Average nighttime temperature: +11°C
Water temperature: —
Precipitation (month): 22.2 mm
Days with precipitation: 9
Humidity: 78%
Wind: 7 m/s

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water

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October	Day	Night	Sea t°	Wind	Precip	Humidity
1Tue	+14°C	+12°C	+18°C	10-12 m/s, WNW	0.9 mm	81%
2Wed	+16°C	+12°C	+18°C	7-8 m/s, NE	1 mm	79%
3Thu	+14°C	+11°C	+17°C	6-7 m/s, NE	0 mm	72%
4Fri	+14°C	+9°C	+17°C	4 m/s, ENE	0 mm	69%
5Sat	+16°C	+9°C	+17°C	4-5 m/s, SSE	0 mm	71%
6Sun	+15°C	+11°C	+16°C	7-8 m/s, SSE	0 mm	78%
7Mon	+17°C	+13°C	+16°C	7-8 m/s, SSW	0.5 mm	84%
8Tue	+17°C	+13°C	+16°C	7-9 m/s, SSW	0.1 mm	83%
9Wed	+15°C	+13°C	+16°C	7-10 m/s, SW	4.2 mm	84%
10Thu	+14°C	+9°C	+16°C	7-9 m/s, N	2.8 mm	79%
11Fri	+11°C	+8°C	+16°C	2-4 m/s, SW	0 mm	68%
12Sat	+14°C	+8°C	+16°C	5-6 m/s, SSE	0.1 mm	75%
13Sun	+10°C	+8°C	+15°C	5-9 m/s, NNW	0 mm	67%
14Mon	+13°C	+8°C	+15°C	3-4 m/s, NE	1 mm	69%
15Tue	+18°C	+12°C	+16°C	4-5 m/s, ESE	0 mm	88%
16Wed	+22°C	+15°C	+16°C	7-8 m/s, SSE	0 mm	83%
17Thu	+16°C	+14°C	+16°C	4-7 m/s, SW	3 mm	91%
18Fri	+15°C	+14°C	+15°C	3 m/s, NNW	0.1 mm	86%
19Sat	+14°C	+11°C	+15°C	5-6 m/s, S	0.4 mm	88%
20Sun	+17°C	+11°C	+15°C	8-12 m/s, S	0.8 mm	85%
21Mon	+15°C	+11°C	+15°C	6-8 m/s, WSW	1.2 mm	81%
22Tue	+15°C	+12°C	+16°C	4-6 m/s, WSW	0.1 mm	82%
23Wed	+15°C	+11°C	+15°C	3-4 m/s, S	0.3 mm	81%
24Thu	+16°C	+9°C	+15°C	5 m/s, SSE	0 mm	82%
25Fri	+14°C	+11°C	+15°C	6 m/s, SSW	0.1 mm	89%
26Sat	+13°C	+10°C	+15°C	5 m/s, SW	0 mm	75%
27Sun	+13°C	+10°C	+14°C	5 m/s, SSW	0 mm	81%
28Mon	+14°C	+12°C	+14°C	5-7 m/s, SW	0 mm	85%
29Tue	+15°C	+14°C	+15°C	5-7 m/s, SW	1.2 mm	90%
30Wed	+16°C	+12°C	+15°C	3-4 m/s, NNE	0 mm	82%
31Thu	+16°C	+11°C	+15°C	3 m/s, E	0 mm	78%

Weather highs and lows in Boulogne-sur-Mer for october

Warmest day: 16 october, +22°C
Coldest night: 11 october, +8°C
Max precipitation: 9 october, 4.2 mm
Warmest water: 1 october, +18°C
Coldest water: 27 october, +14°C

Climate in Boulogne-sur-Mer in october

Year: 2024
Average daytime temperature: +15°C
Average nighttime temperature: +11°C
Water temperature: —
Precipitation (month): 17.8 mm
Days with precipitation: 7
Humidity: 80%
Wind: 5 m/s

Daily air temperature for the month

Day Night

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October	Day	Night	Sea t°	Wind	Precip	Humidity
1Sun	+19°C	+15°C	—	5 m/s, SSW	0 mm	79%
2Mon	+22°C	+17°C	—	2-4 m/s, S	0.3 mm	78%
3Tue	+21°C	+14°C	—	8 m/s, WNW	0.2 mm	74%
4Wed	+16°C	+14°C	—	7-8 m/s, W	0.4 mm	73%
5Thu	+17°C	+14°C	—	5-6 m/s, W	0.2 mm	74%
6Fri	+17°C	+14°C	—	6-8 m/s, WSW	0 mm	76%
7Sat	+18°C	+16°C	—	7-9 m/s, WSW	0 mm	84%
8Sun	+19°C	+15°C	—	4-5 m/s, NE	0 mm	82%
9Mon	+19°C	+15°C	—	2-4 m/s, WSW	0 mm	81%
10Tue	+19°C	+16°C	—	4-6 m/s, SW	0 mm	76%
11Wed	+19°C	+17°C	—	7-9 m/s, SW	0 mm	87%
12Thu	+18°C	+16°C	—	5-6 m/s, SW	1.2 mm	89%
13Fri	+20°C	+17°C	—	9-11 m/s, SW	5.4 mm	86%
14Sat	+13°C	+10°C	—	7-9 m/s, WNW	0.1 mm	66%
15Sun	+11°C	+8°C	—	5-6 m/s, N	0 mm	62%
16Mon	+12°C	+8°C	—	4-6 m/s, ESE	0 mm	62%
17Tue	+14°C	+8°C	—	7 m/s, E	0 mm	64%
18Wed	+18°C	+11°C	—	9-12 m/s, SE	1.6 mm	72%
19Thu	+18°C	+14°C	—	8-10 m/s, SSE	0.5 mm	84%
20Fri	+15°C	+13°C	—	7-8 m/s, SSW	4 mm	89%
21Sat	+15°C	+12°C	—	10-11 m/s, SSE	4.2 mm	79%
22Sun	+15°C	+12°C	—	6-8 m/s, SW	1.2 mm	71%
23Mon	+13°C	+10°C	—	5-9 m/s, ESE	0.5 mm	80%
24Tue	+14°C	+12°C	—	6-8 m/s, WSW	0.5 mm	78%
25Wed	+14°C	+11°C	—	5-8 m/s, ESE	0.6 mm	85%
26Thu	+12°C	+9°C	—	5-8 m/s, ESE	5 mm	88%
27Fri	+13°C	+12°C	—	7-9 m/s, WSW	0.6 mm	80%
28Sat	+14°C	+11°C	—	9-11 m/s, SSW	7.5 mm	84%
29Sun	+14°C	+12°C	—	11-13 m/s, SSW	10.5 mm	80%
30Mon	+14°C	+10°C	—	8-10 m/s, SSW	0.4 mm	81%
31Tue	+14°C	+11°C	—	6-9 m/s, SW	1 mm	81%

Weather highs and lows in Boulogne-sur-Mer for october

Warmest day: 2 october, +22°C
Coldest night: 15 october, +8°C
Max precipitation: 29 october, 10.5 mm
Warmest water: —
Coldest water: —

Climate in Boulogne-sur-Mer in october

Year: 2023
Average daytime temperature: +16°C
Average nighttime temperature: +13°C
Water temperature: —
Precipitation (month): 45.9 mm
Days with precipitation: 10
Humidity: 78%
Wind: 6 m/s

Daily air temperature for the month

Day Night

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October	Day	Night	Sea t°	Wind	Precip	Humidity
1Sat	+17°C	+12°C	—	9-12 m/s, W	1.6 mm	81%
2Sun	+17°C	+14°C	—	5-8 m/s, SW	3.9 mm	88%
3Mon	+17°C	+11°C	—	2-3 m/s, SSE	0 mm	87%
4Tue	+17°C	+12°C	—	6-7 m/s, SW	0 mm	84%
5Wed	+19°C	+14°C	—	9-11 m/s, SW	0.3 mm	80%
6Thu	+16°C	+12°C	—	6-8 m/s, WSW	0 mm	64%
7Fri	+16°C	+13°C	—	6-7 m/s, SW	0.4 mm	76%
8Sat	+16°C	+11°C	—	4-7 m/s, WNW	0.2 mm	72%
9Sun	+18°C	+9°C	—	4-5 m/s, S	0 mm	68%
10Mon	+15°C	+11°C	—	5-6 m/s, N	0.1 mm	66%
11Tue	+15°C	+9°C	—	2-3 m/s, NE	0 mm	68%
12Wed	+15°C	+8°C	—	3-4 m/s, SSW	0 mm	73%
13Thu	+14°C	+12°C	—	4-5 m/s, SSW	1.1 mm	83%
14Fri	+16°C	+13°C	—	3-4 m/s, WNW	0.1 mm	88%
15Sat	+16°C	+13°C	—	6-8 m/s, W	0.9 mm	86%
16Sun	+16°C	+13°C	—	6-8 m/s, S	0.5 mm	80%
17Mon	+18°C	+15°C	—	4-6 m/s, SW	0.1 mm	88%
18Tue	+18°C	+13°C	—	2-5 m/s, NE	0 mm	83%
19Wed	+18°C	+12°C	—	7-8 m/s, E	0 mm	78%
20Thu	+18°C	+15°C	—	6-7 m/s, SSW	0 mm	84%
21Fri	+19°C	+15°C	—	6-9 m/s, S	0.1 mm	85%
22Sat	+17°C	+15°C	—	6-9 m/s, SSW	0.3 mm	86%
23Sun	+20°C	+14°C	—	6-8 m/s, S	0.2 mm	79%
24Mon	+16°C	+15°C	—	10-11 m/s, SW	0.4 mm	82%
25Tue	+17°C	+14°C	—	6-8 m/s, SSW	0.1 mm	83%
26Wed	+18°C	+15°C	—	6-7 m/s, SW	0 mm	80%
27Thu	+20°C	+15°C	—	5 m/s, SSE	0 mm	81%
28Fri	+19°C	+14°C	—	5-7 m/s, SW	0 mm	80%
29Sat	+22°C	+15°C	—	4-7 m/s, SSE	0 mm	79%
30Sun	+17°C	+13°C	—	4-5 m/s, SW	0.1 mm	86%
31Mon	+16°C	+12°C	—	5 m/s, S	0 mm	81%

Weather highs and lows in Boulogne-sur-Mer for october

Warmest day: 29 october, +22°C
Coldest night: 12 october, +8°C
Max precipitation: 2 october, 3.9 mm
Warmest water: —
Coldest water: —

Climate in Boulogne-sur-Mer in october

Year: 2022
Average daytime temperature: +17°C
Average nighttime temperature: +13°C
Water temperature: —
Precipitation (month): 10.4 mm
Days with precipitation: 3
Humidity: 80%
Wind: 5 m/s

Daily air temperature for the month

Day Night

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October	Day	Night	Sea t°	Wind	Precip	Humidity
1Fri	+14°C	+11°C	—	8-9 m/s, SSW	1.3 mm	82%
2Sat	+16°C	+10°C	—	7-13 m/s, SSE	3.6 mm	86%
3Sun	+14°C	+11°C	—	7-9 m/s, SW	4.1 mm	87%
4Mon	+15°C	+11°C	—	8-9 m/s, SSW	3.3 mm	82%
5Tue	+13°C	+11°C	—	8-9 m/s, WSW	0.1 mm	84%
6Wed	+15°C	+10°C	—	7-9 m/s, WNW	0 mm	76%
7Thu	+15°C	+10°C	—	2-3 m/s, N	0 mm	75%
8Fri	+18°C	+11°C	—	3-4 m/s, E	0 mm	74%
9Sat	+18°C	+10°C	—	3 m/s, ENE	0 mm	79%
10Sun	+17°C	+9°C	—	3-4 m/s, NNE	0 mm	70%
11Mon	+14°C	+12°C	—	4-5 m/s, N	0 mm	78%
12Tue	+14°C	+11°C	—	5-6 m/s, N	0.1 mm	76%
13Wed	+13°C	+10°C	—	3-4 m/s, N	0 mm	72%
14Thu	+16°C	+12°C	—	5-7 m/s, WSW	0.3 mm	83%
15Fri	+15°C	+10°C	—	5 m/s, N	0.1 mm	78%
16Sat	+15°C	+9°C	—	2 m/s, SE	0 mm	64%
17Sun	+14°C	+9°C	—	4-5 m/s, S	0 mm	71%
18Mon	+17°C	+10°C	—	5-7 m/s, S	0 mm	75%
19Tue	+21°C	+14°C	—	8-9 m/s, SW	1.8 mm	86%
20Wed	+18°C	+13°C	—	10-11 m/s, SW	2.7 mm	82%
21Thu	+13°C	+8°C	—	9-11 m/s, NW	0.2 mm	76%
22Fri	+13°C	+8°C	—	6-9 m/s, WNW	0 mm	61%
23Sat	+14°C	+8°C	—	3 m/s, SW	0.1 mm	77%
24Sun	+15°C	+7°C	—	5 m/s, S	0 mm	72%
25Mon	+15°C	+11°C	—	6 m/s, SW	0.8 mm	82%
26Tue	+15°C	+11°C	—	5-7 m/s, WSW	0.7 mm	81%
27Wed	+16°C	+13°C	—	7-8 m/s, SSW	0 mm	89%
28Thu	+17°C	+11°C	—	6 m/s, S	0 mm	74%
29Fri	+14°C	+12°C	—	8-10 m/s, S	0 mm	77%
30Sat	+14°C	+10°C	—	7-9 m/s, S	1.3 mm	87%
31Sun	+13°C	+10°C	—	8-11 m/s, S	1.6 mm	84%

Weather highs and lows in Boulogne-sur-Mer for october

Warmest day: 19 october, +21°C
Coldest night: 24 october, +7°C
Max precipitation: 3 october, 4.1 mm
Warmest water: —
Coldest water: —

Climate in Boulogne-sur-Mer in october

Year: 2021
Average daytime temperature: +15°C
Average nighttime temperature: +10°C
Water temperature: —
Precipitation (month): 22.1 mm
Days with precipitation: 8
Humidity: 78%
Wind: 6 m/s

Daily air temperature for the month

Day Night

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October	Day	Night	Sea t°	Wind	Precip	Humidity
1Thu	+15°C	+11°C	—	6-8 m/s, WSW	4.4 mm	80%
2Fri	+13°C	+10°C	—	7-8 m/s, E	1.6 mm	84%
3Sat	+14°C	+11°C	—	4 m/s, S	0.4 mm	84%
4Sun	+13°C	+11°C	—	8-10 m/s, SW	1.6 mm	80%
5Mon	+15°C	+11°C	—	7-11 m/s, WSW	4.6 mm	82%
6Tue	+14°C	+12°C	—	10-11 m/s, W	0.6 mm	78%
7Wed	+13°C	+12°C	—	7-9 m/s, W	0 mm	77%
8Thu	+16°C	+13°C	—	9-13 m/s, SW	2.2 mm	88%
9Fri	+14°C	+11°C	—	4-7 m/s, WSW	0.2 mm	81%
10Sat	+12°C	+9°C	—	6-8 m/s, WNW	0 mm	72%
11Sun	+12°C	+10°C	—	5 m/s, NNW	2 mm	80%
12Mon	+12°C	+10°C	—	4 m/s, WSW	0.3 mm	78%
13Tue	+11°C	+9°C	—	5-6 m/s, NNW	4.2 mm	89%
14Wed	+12°C	+8°C	—	7 m/s, ENE	0 mm	80%
15Thu	+11°C	+8°C	—	5-6 m/s, NE	0.1 mm	76%
16Fri	+11°C	+7°C	—	3 m/s, ENE	0 mm	72%
17Sat	+11°C	+7°C	—	2-3 m/s, NE	0 mm	74%
18Sun	+12°C	+8°C	—	3-4 m/s, ESE	0 mm	75%
19Mon	+13°C	+9°C	—	4-6 m/s, S	0 mm	73%
20Tue	+16°C	+11°C	—	8 m/s, SSW	0.5 mm	78%
21Wed	+16°C	+11°C	—	9-14 m/s, SW	3.5 mm	87%
22Thu	+14°C	+13°C	—	6-7 m/s, SW	0 mm	87%
23Fri	+15°C	+11°C	—	5-7 m/s, SW	0 mm	85%
24Sat	+15°C	+10°C	—	9-11 m/s, SSW	0.4 mm	78%
25Sun	+14°C	+11°C	—	9-13 m/s, SW	5.8 mm	78%
26Mon	+12°C	+11°C	—	8-9 m/s, SW	1.8 mm	76%
27Tue	+11°C	+8°C	—	8-10 m/s, SSW	2.5 mm	83%
28Wed	+12°C	+9°C	—	10-11 m/s, SW	5.5 mm	77%
29Thu	+13°C	+9°C	—	8-10 m/s, WSW	0.9 mm	78%
30Fri	+15°C	+12°C	—	9-11 m/s, SW	1.1 mm	84%
31Sat	+16°C	+12°C	—	8-10 m/s, S	0.2 mm	82%

Weather highs and lows in Boulogne-sur-Mer for october

Warmest day: 8 october, +16°C
Coldest night: 16 october, +7°C
Max precipitation: 25 october, 5.8 mm
Warmest water: —
Coldest water: —

Climate in Boulogne-sur-Mer in october

Year: 2020
Average daytime temperature: +13°C
Average nighttime temperature: +10°C
Water temperature: —
Precipitation (month): 44.4 mm
Days with precipitation: 13
Humidity: 80%
Wind: 7 m/s

Weather in Boulogne-sur-Mer in october by year

Year	Day	Night	Precipitation	Days with precipitation	Water
2025	+15°C	+11°C	22.2 mm	9	—
2024	+15°C	+11°C	17.8 mm	7	—
2023	+16°C	+13°C	45.9 mm	10	—
2022	+17°C	+13°C	10.4 mm	3	—
2021	+15°C	+10°C	22.1 mm	8	—
2020	+13°C	+10°C	44.4 mm	13	—

Comparison october in Boulogne-sur-Mer with other months

Month	Day	Night	Days with precipitation	Sunny days
January	+7°C	+4°C	8	6
February	+9°C	+5°C	5	5
March	+10°C	+5°C	5	8
April	+12°C	+7°C	3	9
May	+15°C	+10°C	3	9
June	+18°C	+13°C	3	11
July	+20°C	+15°C	4	10
August	+21°C	+16°C	5	11
September	+19°C	+14°C	5	9
October	+15°C	+11°C	8	6
November	+12°C	+8°C	9	3
December	+9°C	+6°C	6	3