Romans-sur-Isère weather in April

In April, Romans-sur-Isère sees average daytime highs of 17°C and overnight lows near 7°C, with 80 mm of precipitation across 10.8 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 18°C by the end. The sky is clear or mostly clear about 30% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 14 hours by month's end. Set against the rest of the year, April is Romans-sur-Isère's 6th-clearest and 1st-windiest month. For the whole year in context, see Romans-sur-Isère's year-round climate.

Daytime high
17°
7th warmest
Overnight low
6th coldest
Precipitation
80 mm
10.8 wet days
Daylight
13 h 18 min
6:02 AM – 7:18 PM
Cloud cover
58%
6th clearest
Wind
11 km/h
1st windiest
Solar energy
4.96 kWh/m²
Travel score
5.1
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 April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 18°C by the end.

A typical April day in Romans-sur-Isère reaches about 17°C in the afternoon and slips back to 7°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 22°C. Set against its neighbours, April runs about 3°C warmer than March and about 4°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1155
2155
3155
4155
5155
6156
7156
8166
9166
10166
11166
12166
13166
14166
15166
16166
17177
18177
19177
20177
21177
22177
23188
24188
25188
26188
27188
28188
29188
30189

How April really feels in Romans-sur-Isère

Once humidity and wind are folded in, April 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

April 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 April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14852
24852
34852
44852
54852
64852
74753
84852
94852
104852
114951
124951
134852
144951
154951
164951
174951
184951
194852
204951
214852
224852
234852
244753
254753
264654
274555
284456
294456
304357

Chance of precipitation in April

Any precipitationSnow

Romans-sur-Isère gets around 80 mm of rain and snow over 10.8 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 36% and peaks near 41% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1342
2341
3341
4341
5341
6341
7341
8341
9341
10341
11342
12342
13342
14332
15332
16342
17342
18342
19342
20352
21362
22372
23371
24381
25391
26401
27401
28411
29411
30411

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
25991
26991
27991
28991
29982
30982

Wind in April

Winds average 11 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over April. Sunrise moves from 6:30 AM to 5:38 AM, and sunset from 6:59 PM to 7:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:306:59
212.56:287:00
312.66:267:01
412.66:257:02
512.76:237:04
612.76:217:05
712.86:197:06
812.86:177:08
912.96:157:09
1012.96:137:10
1113.06:117:11
1213.16:097:13
1313.16:087:14
1413.26:067:15
1513.26:047:17
1613.36:027:18
1713.36:007:19
1813.45:597:20
1913.45:577:22
2013.55:557:23
2113.55:537:24
2213.65:527:26
2313.65:507:27
2413.75:487:28
2513.75:467:29
2613.85:457:31
2713.85:437:32
2813.95:427:33
2913.95:407:34
3014.05:387:36

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.96 kWh/m².

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 — April's 4.96 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.5Bright
34.5Bright
44.6Bright
54.6Bright
64.7Bright
74.7Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
135.0Bright
145.0Bright
155.0Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in April

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

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

5.1
Sightseeing
7th-best month of the year
1.0
Beach & pool
7th-best month of the year

April is a reasonable time to visit Romans-sur-Isère for sightseeing.

What to pack for Romans-sur-Isère in April

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

In April, Romans-sur-Isère sees daytime highs around 17°C and nights near 7°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

UV index in Romans-sur-Isère in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. 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 April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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
April 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).