Saint-Nazaire weather in June

In June, Saint-Nazaire sees average daytime highs of 20°C and overnight lows near 14°C, with 41 mm of rain across 8.6 wet days and about 15.7 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 21°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 15 h 24 min at the start of June to 15 h 42 min by month's end. Set against the rest of the year, June is Saint-Nazaire's 4th-clearest and 9th-windiest month. For the whole year in context, see Saint-Nazaire's year-round climate.

Daytime high
20°
3rd warmest
Overnight low
14°
10th coldest
Rainfall
41 mm
8.6 wet days
Daylight
15 h 42 min
5:18 AM – 9:00 PM
Cloud cover
60%
4th clearest
Wind
15 km/h
9th windiest
Solar energy
6.18 kWh/m²
Travel score
6.5
out of 10

Saint-Nazaire is commune in Loire-Atlantique, France.

Air quality
Good
PM2.5 8.2 µg/m³ · 2019
Density
1,433/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 19°C in the first days to 21°C by the end.

A typical June day in Saint-Nazaire reaches about 20°C in the afternoon and slips back to 14°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 25°C. Set against its neighbours, June runs about 3°C warmer than May and about 2°C cooler than July.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
11913
21913
31913
41913
51913
61914
71914
82014
92014
102014
112014
122014
132014
142014
152014
162014
172014
182115
192115
202115
212115
222115
232115
242115
252115
262115
272115
282115
292115
302115

Saint-Nazaire weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 7211.58.71.7
Feb / 549.29.92.0
Mar12° / 509.811.63.1
Apr14° / 5110.113.34.1
May17° / 12°5410.214.85.5
Jun20° / 14°418.615.76.5
Jul22° / 16°417.815.37.1
Aug22° / 16°457.9147.1
Sep20° / 14°527.812.46.6
Oct16° / 11°7611.610.64.9
Nov12° / 7611.79.13.1
Dec10° / 8112.38.32.0

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 20% of June, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34456
44357
54357
64357
74357
84456
94456
104357
114555
124555
134555
144654
154555
164555
174654
184654
194753
204852
214852
224852
234852
244852
254753
264852
274852
284951
294852
304951

Chance of precipitation in June

Any precipitation

Saint-Nazaire gets around 41 mm of rain over 8.6 wet days in June, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
132
232
333
433
533
633
733
833
933
1033
1132
1232
1331
1431
1530
1629
1728
1827
1926
2025
2125
2225
2325
2425
2526
2626
2727
2827
2928
3028

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 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1593470
2583570
3563680
4563680
5543790
6543790
7533890
8533890
95138101
105039101
115039101
124939111
134840111
144740121
154640122
164541122
174441132
184342132
194242143
204043143
213943153
223744153
233644164
243445174
253246184
263146194
273047194
282848204
292749204
302649214

Wind in June

Winds average 15 km/h in June.

Across June, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in June

DaylightNight

Daylight runs from about 15 h 24 min at the start of June to 15 h 42 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 5:23 AM to 5:21 AM, and sunset from 8:49 PM to 9:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
115.45:238:49
215.55:238:50
315.55:228:51
415.55:228:52
515.55:218:53
615.65:218:54
715.65:208:55
815.65:208:55
915.65:198:56
1015.65:198:57
1115.65:198:57
1215.75:198:58
1315.75:188:59
1415.75:188:59
1515.75:189:00
1615.75:189:00
1715.75:189:01
1815.75:189:01
1915.75:189:01
2015.75:189:02
2115.75:189:02
2215.75:189:02
2315.75:199:03
2415.75:199:03
2515.75:199:03
2615.75:199:03
2715.75:209:03
2815.75:209:03
2915.75:219:03
3015.75:219:03

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 6.18 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 0.99 kWh/m² to a high of 6.18 kWh/m² in June across the year — June's 6.18 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in June

Is June a good time to visit Saint-Nazaire?

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

6.5
Sightseeing
4th-best month of the year
3.5
Beach & pool
3rd-best month of the year

June is a reasonable time to visit Saint-Nazaire for sightseeing.

What to pack for Saint-Nazaire in June

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

In June, Saint-Nazaire sees daytime highs around 20°C and nights near 14°C. Pack sun protection. Worth having: rain gear. About 9 days see rain.

sun protectionrain gear

Sea temperature near Saint-Nazaire in June

The nearest coast averages about 17°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 19°C and coldest in February near 9°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan10Bracing
Feb9Bracing
Mar10Bracing
Apr12Bracing
May14Bracing
Jun17Cool
Jul18Cool
Aug19Cool
Sep17Cool
Oct16Cool
Nov14Bracing
Dec11Bracing

UV index in Saint-Nazaire 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 Saint-Nazaire peaks around August 10 at about 7 (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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 10UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May6High
Jun7High
Jul7High
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Saint-Nazaire?

Saint-Nazaire sits at 47.3°N, 2.2°W, 12 m above sea level, in France. The nearest listed city is La Baule-Escoublac, 11 km away.

Topography around Saint-Nazaire

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

Within 3 km, the terrain around Saint-Nazaire has only modest variations in elevation — a maximum elevation change of 37 m around an average of 7 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 119 m; within 80 km, significant variations in elevation — a maximum elevation change of 293 m.

The land around Saint-Nazaire is covered by artificial surfaces (36%) and water (36%) within 3 km, water (32%) and grassland (27%) within 16 km, and water (34%), grassland (25%) and cropland (21%) within 80 km.

3 km
37 m
16 km
119 m
80 km
293 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
June weather nearby: La Baule-Escoublac 11 km · Guérande 17 km · Couëron 38 km · Saint-Herblain 43 km · Orvault 45 km · Bouguenais 46 km · Rezé 50 km · La Chapelle-sur-Erdre 50 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 Saint-Nazaire (47.2751°, -2.2179°, elevation 12 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).