Romans-sur-Isère weather in July

In July, Romans-sur-Isère sees average daytime highs of 28°C and overnight lows near 16°C, with 54 mm of rain across 6.6 wet days and about 15.1 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 51% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 24 min at the start of July to 14 h 36 min by month's end. Set against the rest of the year, July is Romans-sur-Isère's 1st-clearest and 7th-windiest month. For the whole year in context, see Romans-sur-Isère's year-round climate.

Daytime high
28°
1st warmest
Overnight low
16°
12th coldest
Rainfall
54 mm
6.6 wet days
Daylight
15 h 06 min
5:12 AM – 8:19 PM
Cloud cover
41%
1st clearest
Wind
10 km/h
7th windiest
Solar energy
6.5 kWh/m²
Travel score
7.1
out of 10
Air quality
Good
PM10 16.6 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

Day-to-day highs hold fairly steady near 28°C through the month.

A typical July day in Romans-sur-Isère reaches about 28°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 33°C. Set against its neighbours, July runs about 3°C warmer than June and on par with August.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32716
42716
52716
62716
72716
82716
92716
102716
112716
122716
132716
142716
152816
162816
172816
182816
192816
202817
212817
222817
232817
242817
252817
262817
272817
282817
292817
302817
312817

How July really feels in Romans-sur-Isère

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.

Romans-sur-Isère weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6810.72.691.0
Feb / 559.12.510.11.8
Mar13° / 579.61.111.63.8
Apr17° / 8010.80.413.25.1
May20° / 11°8310.80.114.66.3
Jun25° / 14°608.6015.47.1
Jul28° / 16°546.6015.17.1
Aug27° / 16°536.7013.97.1
Sep23° / 13°847.7012.37.1
Oct17° / 9710.50.110.75.4
Nov11° / 10811.31.39.32.7
Dec / 6711.12.28.61.3

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of July, with mostly cloudy or overcast conditions the remaining 27%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27228
37228
47228
57228
67327
77228
87228
97228
107228
117327
127327
137327
147327
157327
167426
177426
187426
197426
207525
217525
227525
237525
247525
257525
267426
277327
287327
297327
307228
317228

Chance of precipitation in July

Any precipitation

Romans-sur-Isère gets around 54 mm of rain over 6.6 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
223
323
423
524
624
724
824
923
1023
1123
1222
1321
1421
1520
1620
1720
1819
1919
2019
2119
2219
2319
2419
2519
2619
2719
2820
2920
3021
3121

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14636171
24637171
34637171
44636170
54636170
64636180
74636180
84635180
94735180
104734181
114734181
124734191
134733191
144733191
154633191
164534201
174434201
184334211
194235211
204136222
214036222
223937232
233837232
243638242
253539242
263439252
273439252
283340262
293240262
303240272
313140272

Wind in July

Winds average 10 km/h in July.

Across July, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 24 min at the start of July to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over July. Sunrise moves from 5:01 AM to 5:28 AM, and sunset from 8:25 PM to 8:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.45:018:25
215.45:028:25
315.45:028:24
415.45:038:24
515.35:048:24
615.35:048:24
715.35:058:23
815.35:068:23
915.35:068:23
1015.25:078:22
1115.25:088:22
1215.25:098:21
1315.25:108:20
1415.25:108:20
1515.15:118:19
1615.15:128:19
1715.15:138:18
1815.15:148:17
1915.05:158:16
2015.05:168:15
2115.05:178:15
2214.95:188:14
2314.95:198:13
2414.95:208:12
2514.85:218:11
2614.85:228:10
2714.85:238:09
2814.75:248:08
2914.75:258:06
3014.65:268:05
3114.65:288:04

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.5 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.25 kWh/m² to a high of 6.5 kWh/m² in July across the year — July's 6.5 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.3Intense
286.3Intense
296.3Intense
306.2Intense
316.2Intense
Planning a trip in July

Is July a good time to visit Romans-sur-Isère?

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

7.1
Sightseeing
1st-best month of the year
7.6
Beach & pool
1st-best month of the year

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

What to pack for Romans-sur-Isère in July

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

In July, Romans-sur-Isère sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Romans-sur-Isère in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Romans-sur-Isère peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5Moderate
May6High
Jun7Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Romans-sur-Isère 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 Romans-sur-Isère is worst in March — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 2117 µg/m³Aug 1312 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb15Moderate
Mar17Moderate
Apr17Moderate
May14Moderate
Jun16Moderate
Jul12Good
Aug12Good
Sep12Moderate
Oct13Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is Romans-sur-Isère?

Romans-sur-Isère sits at 45.0°N, 5.1°E, 170 m above sea level, in France. The nearest listed city is Bourg-lès-Valence, 18 km away.

Topography around Romans-sur-Isère

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Romans-sur-Isère.

Within 3 km, the terrain around Romans-sur-Isère has only modest variations in elevation — a maximum elevation change of 152 m around an average of 171 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,190 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,001 m.

The land around Romans-sur-Isère is covered by artificial surfaces (44%) and cropland (25%) within 3 km, trees (37%), cropland (35%) and grassland (21%) within 16 km, and trees (59%) and grassland (23%) within 80 km.

3 km
152 m
16 km
1,190 m
80 km
3,001 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Bourg-lès-Valence 18 km · Valence 18 km · Annonay 38 km · Fontaine 51 km · Échirolles 52 km · Saint-Égrève 52 km · Grenoble 53 km · Voiron 54 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 Romans-sur-Isère (45.0496°, 5.066°, elevation 170 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. 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).