Saint-Herblain weather in July

In July, Saint-Herblain sees average daytime highs of 24°C and overnight lows near 15°C, with 40 mm of rain across 7.1 wet days and about 15.3 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 28% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 15 h 42 min at the start of July to 14 h 48 min by month's end. Set against the rest of the year, July is Saint-Herblain's 2nd-clearest and 10th-windiest month. For the whole year in context, see Saint-Herblain's year-round climate.

Daytime high
24°
2nd warmest
Overnight low
15°
12th coldest
Rainfall
40 mm
7.1 wet days
Daylight
15 h 24 min
5:31 AM – 8:53 PM
Cloud cover
57%
2nd clearest
Wind
13 km/h
10th windiest
Solar energy
5.78 kWh/m²
Travel score
7.4
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical July day in Saint-Herblain reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12314
22314
32314
42314
52314
62314
72315
82315
92315
102315
112315
122415
132415
142415
152415
162415
172415
182415
192415
202415
212415
222415
232415
242415
252415
262415
272415
282415
292415
302415
312415

How July really feels in Saint-Herblain

Once humidity and wind are folded in, July 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

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

Saint-Herblain weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 7011.58.71.7
Feb10° / 549.4102.1
Mar13° / 521011.63.4
Apr15° / 5510.313.34.6
May19° / 10°5810.414.85.8
Jun22° / 13°448.215.66.7
Jul24° / 15°407.115.37.4
Aug24° / 15°467.4147.4
Sep21° / 12°487.212.46.9
Oct17° / 10°7211.310.65.1
Nov12° / 7011.49.13.2
Dec10° / 7811.78.41.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44654
54654
64654
74753
84753
94852
104951
114951
124951
135050
145050
155149
165149
175149
185050
195050
204951
214951
224852
234852
244852
254852
264852
274951
284852
294852
304852
314852

Chance of precipitation in July

Any precipitation

Saint-Herblain gets around 40 mm of rain over 7.1 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 26% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
426
526
626
725
825
924
1023
1122
1222
1321
1420
1520
1620
1719
1819
1919
2020
2120
2220
2320
2420
2520
2620
2720
2821
2921
3021
3122

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the comfortable band about 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13846143
23746143
33647142
43647152
53548152
63548162
73448162
83448171
93448171
103348181
113348181
123248191
133247191
143147201
153147212
163047222
172947232
182847242
192746252
202646262
212546272
222446283
232345293
242345293
252245303
262244313
272144313
282144324
292143324
302043334
312043334

Wind in July

Winds average 13 km/h in July.

Across July, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 42 min at the start of July to 14 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over July. Sunrise moves from 5:20 AM to 5:48 AM, and sunset from 9:00 PM to 8:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.75:209:00
215.75:209:00
315.75:219:00
415.65:219:00
515.65:228:59
615.65:238:59
715.65:238:59
815.65:248:58
915.55:258:58
1015.55:268:57
1115.55:278:57
1215.55:278:56
1315.45:288:55
1415.45:298:55
1515.45:308:54
1615.45:318:53
1715.35:328:52
1815.35:338:52
1915.35:348:51
2015.25:358:50
2115.25:368:49
2215.25:378:48
2315.15:398:47
2415.15:408:46
2515.15:418:45
2615.05:428:44
2715.05:438:42
2814.95:448:41
2914.95:468:40
3014.95:478:39
3114.85:488:37

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.78 kWh/m².

For context, solar energy here swings from a low near 0.98 kWh/m² to a high of 5.94 kWh/m² in June across the year — July's 5.78 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in July

Is July a good time to visit Saint-Herblain?

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

7.4
Sightseeing
1st-best month of the year
6.1
Beach & pool
2nd-best month of the year

July is one of the better times to visit Saint-Herblain for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Saint-Herblain in July

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

In July, Saint-Herblain sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Saint-Herblain in July

The nearest coast averages about 18°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 37 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-Herblain in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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-Herblain 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-Herblain?

Saint-Herblain sits at 47.2°N, 1.7°W, 23 m above sea level, in France. The nearest listed city is Bouguenais, 4.0 km away.

Topography around Saint-Herblain

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

Within 3 km, the terrain around Saint-Herblain has only modest variations in elevation — a maximum elevation change of 68 m around an average of 26 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 165 m; within 80 km, significant variations in elevation — a maximum elevation change of 340 m.

The land around Saint-Herblain is covered by artificial surfaces (36%), trees (35%) and grassland (23%) within 3 km, grassland (35%) and trees (31%) within 16 km, and cropland (32%) and grassland (31%) within 80 km.

3 km
68 m
16 km
165 m
80 km
340 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Bouguenais 4.0 km · Couëron 6.0 km · Rezé 7.0 km · Orvault 7.0 km · Nantes 7.0 km · Saint-Sébastien-sur-Loire 11 km · La Chapelle-sur-Erdre 12 km · Vertou 14 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-Herblain (47.2115°, -1.651°, elevation 23 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).