Calais weather in October

In October, Calais sees average daytime highs of 15°C and overnight lows near 12°C, with 96 mm of rain across 14.3 wet days and about 10.4 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 13°C by the end. The sky is clear or mostly clear about 17% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of October to 9 h 30 min by month's end. Set against the rest of the year, October is Calais's 8th-clearest and 5th-windiest month. For the whole year in context, see Calais's year-round climate.

Daytime high
15°
5th warmest
Overnight low
12°
8th coldest
Rainfall
96 mm
14.3 wet days
Daylight
10 h 24 min
7:25 AM – 5:50 PM
Cloud cover
69%
8th clearest
Wind
25 km/h
5th windiest
Solar energy
1.97 kWh/m²
Travel score
3.9
out of 10

Calais is commune in Pas-de-Calais, France.

Air quality
Moderate
PM2.5 10.2 µg/m³ · 2019
Density
2,222/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 16°C in the first days to 13°C by the end.

A typical October day in Calais reaches about 15°C in the afternoon and slips back to 12°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, October runs about 3°C cooler than September and about 4°C warmer than November.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11613
21613
31613
41613
51613
61613
71613
81613
91512
101512
111512
121512
131512
141512
151512
161512
171512
181511
191411
201411
211411
221411
231411
241411
251411
261411
271411
281411
291311
301310
311310

How October really feels in Calais

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Calais weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7914.30.88.21.0
Feb / 6011.419.71.0
Mar / 5110.50.511.51.7
Apr11° / 459.3013.52.7
May14° / 10°519.8015.33.9
Jun16° / 13°498.7016.25.2
Jul19° / 15°519.6015.86.1
Aug19° / 16°6510014.36.2
Sep18° / 14°6811.2012.45.5
Oct15° / 12°9614.3010.43.9
Nov11° / 10116.40.28.72.3
Dec / 94150.77.81.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23763
33763
43664
53565
63565
73565
83565
93565
103565
113565
123565
133565
143466
153565
163565
173664
183664
193664
203664
213565
223565
233565
243565
253466
263466
273466
283367
293367
303367
313268

Chance of precipitation in October

Any precipitation

Calais gets around 96 mm of rain over 14.3 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 47% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
246
346
446
546
646
746
845
945
1045
1145
1245
1346
1446
1546
1646
1747
1847
1947
2047
2147
2248
2348
2448
2548
2648
2748
2848
2948
3049
3149

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 82% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
170291
271281
371281
472271
573261
675250
776240
876240
977230
1078220
1179210
1280200
1380200
1481190
1582180
1683170
1784160
1884160
1985150
2086140
2187130
2288120
2388120
2489110
2590100
269190
279190
289280
299280
309370
319460

Wind in October

Winds average 25 km/h in October.

Across October, daily wind ranges from about 23 km/h on the calmest days to 26 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1524breezy
1624breezy
1724breezy
1825breezy
1925breezy
2025breezy
2125breezy
2225breezy
2325breezy
2426breezy
2526breezy
2626breezy
2726breezy
2826breezy
2926breezy
3026breezy
3126breezy

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 24 min at the start of October to 9 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 114 minutes over October. Sunrise moves from 7:00 AM to 7:51 AM, and sunset from 6:23 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:006:23
211.37:026:21
311.37:036:19
411.27:056:16
511.17:076:14
611.17:086:12
711.07:106:10
810.97:126:07
910.97:136:05
1010.87:156:03
1110.77:176:01
1210.77:185:59
1310.67:205:56
1410.57:225:54
1510.57:245:52
1610.47:255:50
1710.37:275:48
1810.37:295:46
1910.27:305:44
2010.27:325:42
2110.17:345:40
2210.07:365:38
2310.07:375:36
249.97:395:34
259.97:415:32
269.87:435:30
279.77:445:28
289.77:465:26
299.67:485:24
309.67:505:23
319.57:515:21

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.97 kWh/m².

For context, solar energy here swings from a low near 0.68 kWh/m² to a high of 5.74 kWh/m² in June across the year — October's 1.97 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.4Moderate
52.4Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.1Moderate
132.1Moderate
142.0Moderate
152.0Moderate
162.0Dim
171.9Dim
181.9Dim
191.9Dim
201.8Dim
211.8Dim
221.8Dim
231.7Dim
241.7Dim
251.6Dim
261.6Dim
271.6Dim
281.6Dim
291.5Dim
301.5Dim
311.4Dim
Planning a trip in October

Is October a good time to visit Calais?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.9
Sightseeing
5th-best month of the year
0.2
Beach & pool
5th-best month of the year

October is a weaker month for outdoor sightseeing in Calais.

What to pack for Calais in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Calais sees daytime highs around 15°C and nights near 12°C. Pack rain gear. Worth having: a warm layer and a windbreaker. About 14 days see rain.

rain geara warm layera windbreaker

Sea temperature near Calais in October

The nearest coast averages about 16°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in August at about 18°C and coldest in March near 8°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun14Bracing
Jul16Cool
Aug18Cool
Sep17Cool
Oct16Cool
Nov13Bracing
Dec11Bracing

UV index in Calais in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Calais peaks around June 22 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 22UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul6High
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Calais?

Calais sits at 51.0°N, 1.9°E, 6 m above sea level, in France. The nearest listed city is Boulogne-sur-Mer, 30 km away.

Topography around Calais

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Calais.

Within 3 km, the terrain around Calais has only modest variations in elevation — a maximum elevation change of 20 m around an average of 3 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 250 m; within 80 km, significant variations in elevation — a maximum elevation change of 290 m.

The land around Calais is covered by artificial surfaces (48%) and grassland (23%) within 3 km, water (45%) and cropland (30%) within 16 km, and water (47%) and cropland (30%) within 80 km.

3 km
20 m
16 km
250 m
80 km
290 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Boulogne-sur-Mer 30 km · Grande-Synthe 32 km · Outreau 33 km · Saint-Pol-sur-Mer 35 km · Saint-Omer 36 km · Dunkirk 38 km · Coudekerque-Branche 38 km · Dover 43 km

France travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 77% of US
price level, 2025
GDP per capita
$48,986
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 539
Religion
Roman Catholic 47%none 33%Muslim 4%Protestant 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Calais (50.9519°, 1.8563°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).