Calais weather in June

In June, Calais sees average daytime highs of 16°C and overnight lows near 13°C, with 49 mm of rain across 8.7 wet days and about 16.2 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 17°C by the end. The sky is clear or mostly clear about 26% of the time in June, and the air most often feels dry.

Daylight stretches from about 16 hours at the start of June to 16 h 18 min by month's end. Set against the rest of the year, June is Calais's 4th-clearest and 10th-windiest month. For the whole year in context, see Calais's year-round climate.

Daytime high
16°
4th warmest
Overnight low
13°
9th coldest
Rainfall
49 mm
8.7 wet days
Daylight
16 h 18 min
4:45 AM – 9:01 PM
Cloud cover
61%
4th clearest
Wind
20 km/h
10th windiest
Solar energy
5.74 kWh/m²
Travel score
5.2
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 June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 17°C by the end.

A typical June day in Calais reaches about 16°C in the afternoon and slips back to 13°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 19°C. Set against its neighbours, June runs about 3°C warmer than May and about 2°C cooler than July.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11512
21512
31512
41512
51512
61512
71612
81612
91613
101613
111613
121613
131613
141613
151613
161613
171613
181613
191713
201714
211714
221714
231714
241714
251714
261714
271714
281714
291714
301814

How June really feels in Calais

Once humidity and wind are folded in, June 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

June 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 June compares with the rest of the year at a glance. June is the 4th-warmest and 11th-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 June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 19% of June, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24357
34357
44258
54258
64258
74357
84357
94357
104357
114357
124357
134456
144456
154456
164456
174555
184555
194654
204753
214753
224852
234852
244852
254852
264852
274852
284852
294951
304951

Chance of precipitation in June

Any precipitation

Calais gets around 49 mm of rain over 8.7 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
132
232
332
432
532
632
732
832
932
1031
1131
1231
1330
1430
1529
1628
1728
1827
1927
2027
2126
2227
2327
2427
2528
2628
2729
2830
2930
3031

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
188120
288120
387130
486140
585150
684160
783170
882180
982180
1081190
1180200
1279210
1377221
1476231
1576231
1675241
1774251
1873261
1972271
2070282
2168302
2266322
2364342
2462362
2561372
2658393
2756413
2854433
2952453
3050474

Wind in June

Winds average 20 km/h in June.

Across June, daily wind ranges from about 20 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
520light breeze
620light breeze
720light breeze
820light breeze
920light breeze
1020light breeze
1120light breeze
1220light breeze
1320light breeze
1420light breeze
1520light breeze
1620light breeze
1720light breeze
1820light breeze
1920light breeze
2020light breeze
2120breezy
2220breezy
2320breezy
2420breezy
2520breezy
2620breezy
2720breezy
2820breezy
2920breezy
3020breezy

Sunrise & sunset in June

DaylightNight

Daylight runs from about 16 hours at the start of June to 16 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over June. Sunrise moves from 4:52 AM to 4:48 AM, and sunset from 8:49 PM to 9:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
116.04:528:49
216.04:518:50
316.04:508:51
416.04:498:52
516.14:498:53
616.14:488:54
716.14:478:55
816.14:478:56
916.24:478:56
1016.24:468:57
1116.24:468:58
1216.24:458:59
1316.24:458:59
1416.34:459:00
1516.34:459:01
1616.34:459:01
1716.34:459:02
1816.34:449:02
1916.34:449:02
2016.34:459:03
2116.34:459:03
2216.34:459:03
2316.34:459:04
2416.34:459:04
2516.34:469:04
2616.34:469:04
2716.34:469:04
2816.34:479:04
2916.34:479:04
3016.34:489:04

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.74 kWh/m² — the sunniest month for solar.

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 — June's 5.74 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.8Bright
Planning a trip in June

Is June a good time to visit Calais?

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

5.2
Sightseeing
4th-best month of the year
0.8
Beach & pool
4th-best month of the year

June is a reasonable time to visit Calais for sightseeing.

What to pack for Calais in June

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

In June, Calais sees daytime highs around 16°C and nights near 13°C. Worth packing: a warm layer, rain gear and sun protection. About 9 days see rain.

a warm layerrain gearsun protection

Sea temperature near Calais in June

The nearest coast averages about 14°C in June — 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 June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 7 — enough to warrant sun protection. 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
June 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).