Dieppe weather in July

In July, Dieppe sees average daytime highs of 20°C and overnight lows near 15°C, with 54 mm of rain across 10.5 wet days and about 15.7 hours of daylight. It is the 2nd-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 30% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 16 h 06 min at the start of July to 15 h 06 min by month's end. Set against the rest of the year, July is Dieppe's 1st-clearest and 11th-windiest month. For the whole year in context, see Dieppe's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
54 mm
10.5 wet days
Daylight
15 h 42 min
5:09 AM – 8:53 PM
Cloud cover
58%
1st clearest
Wind
17 km/h
11th windiest
Solar energy
5.88 kWh/m²
Travel score
6.3
out of 10
Air quality
Moderate
PM2.5 11.3 µg/m³ · 2019

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

Temperature in July

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 July day in Dieppe reaches about 20°C in the afternoon and slips back to 15°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11914
21914
31914
41914
51914
61914
71914
81914
91914
101915
111915
122015
132015
142015
152015
162015
172015
182015
192015
202015
212015
222015
232015
242115
252115
262115
272115
282116
292116
302116
312116

How July really feels in Dieppe

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.

Dieppe 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 daysSnow daysDaylight (hours)Travel score
Jan / 7413.20.78.41.0
Feb / 6112.30.89.71.1
Mar10° / 5811.60.511.52.1
Apr12° / 55110.113.53.2
May15° / 10°6111.3015.14.4
Jun18° / 13°5810.40165.6
Jul20° / 15°5410.5015.76.3
Aug20° / 15°6911.1014.36.2
Sep18° / 13°6311012.45.7
Oct15° / 11°8914.4010.54.0
Nov11° / 9315.70.18.82.3
Dec / 10014.90.781.3

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34555
44654
54654
64753
74753
84753
94753
104852
114852
124852
134951
145050
155149
165149
175149
185149
195248
205248
215248
225248
235248
245347
255347
265347
275347
285347
295347
305347
315347

Chance of precipitation in July

Any precipitation

Dieppe gets around 54 mm of rain over 10.5 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 33% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
237
337
437
537
637
736
836
935
1034
1134
1233
1332
1432
1531
1631
1731
1830
1930
2031
2131
2231
2331
2432
2532
2633
2733
2833
2934
3034
3134

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 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
148457
246477
345487
443498
542508
641518
740528
839538
938539
1038539
11375310
12365311
13355411
14345412
15335413
16325414
17315415
18305416
19295417
20275518
21265519
22255520
23245620
24235621
25225721
26225721
27215722
28205822
29195922
30195823
31195823

Wind in July

Winds average 17 km/h in July.

Across July, daily wind ranges from about 16 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 06 min at the start of July to 15 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over July. Sunrise moves from 4:57 AM to 5:28 AM, and sunset from 9:01 PM to 8:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.14:579:01
216.14:579:01
316.14:589:01
416.04:599:01
516.04:599:00
616.05:009:00
716.05:018:59
816.05:028:59
915.95:028:58
1015.95:038:58
1115.95:048:57
1215.95:058:56
1315.85:068:56
1415.85:078:55
1515.85:088:54
1615.75:098:53
1715.75:108:52
1815.75:128:51
1915.65:138:50
2015.65:148:49
2115.65:158:48
2215.55:168:47
2315.55:188:46
2415.45:198:45
2515.45:208:44
2615.35:218:42
2715.35:238:41
2815.35:248:40
2915.25:258:38
3015.25:278:37
3115.15:288:35

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.88 kWh/m².

For context, solar energy here swings from a low near 0.75 kWh/m² to a high of 6.06 kWh/m² in June across the year — July's 5.88 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.0Intense
46.0Intense
56.0Intense
66.0Bright
76.0Bright
86.0Bright
96.0Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.7Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in July

Is July a good time to visit Dieppe?

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

6.3
Sightseeing
1st-best month of the year
3.2
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Dieppe for sightseeing.

What to pack for Dieppe in July

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

In July, Dieppe sees daytime highs around 20°C and nights near 15°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Dieppe in July

The nearest coast averages about 17°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 15 km away) is warmest in August at about 18°C and coldest in February near 8°C.

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

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan8Bracing
Feb8Bracing
Mar8Bracing
Apr10Bracing
May12Bracing
Jun15Bracing
Jul17Cool
Aug18Cool
Sep18Cool
Oct16Cool
Nov13Bracing
Dec10Bracing

UV index in Dieppe in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dieppe peaks around June 19 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 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 19UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul6High
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Dieppe in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Dieppe is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (November, 8 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Dieppe's WHO annual average of 11.3 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2415 µg/m³Nov 168 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar15Moderate
Apr15Moderate
May14Moderate
Jun12Moderate
Jul11Good
Aug11Good
Sep11Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Dieppe?

Dieppe sits at 49.9°N, 1.1°E, 9 m above sea level, in France. The nearest listed city is Mont-Saint-Aignan, 51 km away.

Topography around Dieppe

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

Within 3 km, the terrain around Dieppe has only modest variations in elevation — a maximum elevation change of 101 m around an average of 33 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 191 m; within 80 km, significant variations in elevation — a maximum elevation change of 265 m.

The land around Dieppe is covered by water (34%) and artificial surfaces (24%) within 3 km, water (43%) and cropland (29%) within 16 km, and cropland (38%) and water (29%) within 80 km.

3 km
101 m
16 km
191 m
80 km
265 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Mont-Saint-Aignan 51 km · Rouen 53 km · Fécamp 54 km · Canteleu 54 km · Le Petit-Quevilly 57 km · Sotteville-lès-Rouen 57 km · Abbeville 58 km · Le Grand-Quevilly 58 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 Dieppe (49.9216°, 1.0777°, elevation 9 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).