Strasbourg weather in May

In May, Strasbourg sees average daytime highs of 20°C and overnight lows near 10°C, with 83 mm of rain across 13.8 wet days and about 15 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 21°C by the end. The sky is clear or mostly clear about 22% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of May to 15 h 36 min by month's end. Set against the rest of the year, May is Strasbourg's 7th-clearest and 8th-windiest month. For the whole year in context, see Strasbourg's year-round climate.

Daytime high
20°
5th warmest
Overnight low
10°
8th coldest
Rainfall
83 mm
13.8 wet days
Daylight
15 hours
4:55 AM – 7:56 PM
Cloud cover
64%
7th clearest
Wind
8 km/h
8th windiest
Solar energy
5.28 kWh/m²
Travel score
5.6
out of 10

Strasbourg is capital and largest city of Grand Est, located in the historical region of Alsace.

Air quality
Moderate
PM2.5 14 µg/m³ · 2019
Density
3,512/km²
people per km²
Founded
~11 BCE

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 18°C in the first days to 21°C by the end.

A typical May day in Strasbourg reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 26°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1188
2189
3189
4189
5189
6189
7199
8199
9199
10199
11199
121910
131910
141910
151910
162010
172010
182010
192010
202010
212011
222011
232111
242111
252111
262111
272111
282111
292112
302212
312212

How May really feels in Strasbourg

Once humidity and wind are folded in, May 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

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

Strasbourg weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7213.23.18.50.0
Feb / 6311.23.19.80.7
Mar11° / 7012.51.311.62.7
Apr16° / 6011.60.113.44.6
May20° / 10°8313.80155.6
Jun23° / 13°7912.5015.86.4
Jul25° / 15°8413.1015.56.4
Aug25° / 15°7612014.16.6
Sep20° / 11°7010.3012.46.2
Oct15° / 7711.90.110.64.3
Nov / 7611.9191.7
Dec / 8714.63.38.20.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33664
43664
53664
63664
73763
83763
93763
103763
113763
123862
133961
143961
153961
163961
174060
184060
194060
204060
214159
224159
234159
244159
253961
263961
273961
283961
293961
303862
313862

Chance of precipitation in May

Any precipitation

Strasbourg gets around 83 mm of rain over 13.8 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 45% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
247
347
447
548
648
748
848
948
1048
1148
1248
1347
1447
1547
1646
1746
1845
1944
2044
2143
2242
2342
2441
2541
2641
2741
2841
2942
3042
3143

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29730
39730
49640
59640
69550
79550
89460
99460
109370
119370
129370
139370
149280
159280
169181
179091
189091
1989101
2087112
2187112
2285123
2384133
2482144
2581154
2679165
2777185
2875196
2973207
3072217
3170228

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 18 min at the start of May to 15 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over May. Sunrise moves from 5:18 AM to 4:39 AM, and sunset from 7:34 PM to 8:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:187:34
214.35:167:36
314.45:157:37
414.45:137:39
514.55:117:40
614.55:107:42
714.65:087:43
814.65:067:45
914.75:057:46
1014.75:037:47
1114.85:027:49
1214.85:007:50
1314.94:597:52
1414.94:587:53
1515.04:567:54
1615.04:557:56
1715.14:547:57
1815.14:527:58
1915.14:518:00
2015.24:508:01
2115.24:498:02
2215.34:488:03
2315.34:468:05
2415.34:458:06
2515.44:448:07
2615.44:438:08
2715.44:428:09
2815.54:428:10
2915.54:418:12
3015.54:408:13
3115.64:398:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.28 kWh/m².

For context, solar energy here swings from a low near 0.82 kWh/m² to a high of 5.73 kWh/m² in June across the year — May's 5.28 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.6Bright
315.6Bright
Planning a trip in May

Is May a good time to visit Strasbourg?

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

5.6
Sightseeing
5th-best month of the year
2.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Strasbourg for sightseeing.

What to pack for Strasbourg in May

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

In May, Strasbourg sees daytime highs around 20°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 14 days see rain.

rain gearsun protection

UV index in Strasbourg in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Strasbourg peaks around July 14 at about 8 (very 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5Moderate
May6High
Jun7High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Strasbourg in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Strasbourg is worst in April — around 18 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 11 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Strasbourg's WHO annual average of 14 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1318 µg/m³Dec 1011 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar17Moderate
Apr18Moderate
May16Moderate
Jun17Moderate
Jul13Moderate
Aug14Moderate
Sep14Moderate
Oct12Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Strasbourg?

Strasbourg sits at 48.6°N, 7.7°E, 147 m above sea level, in France. The nearest listed city is Schiltigheim, 3.0 km away.

Topography around Strasbourg

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

Within 3 km, the terrain around Strasbourg has only modest variations in elevation — a maximum elevation change of 32 m around an average of 143 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 112 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,341 m.

The land around Strasbourg is covered by artificial surfaces (66%) and trees (25%) within 3 km, cropland (42%) and trees (25%) within 16 km, and trees (57%) within 80 km.

3 km
32 m
16 km
112 m
80 km
1,341 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Schiltigheim 3.0 km · Bischheim 4.0 km · Kehl 5.0 km · Lingolsheim 5.0 km · Illkirch-Graffenstaden 7.0 km · Offenburg 19 km · Achern 25 km · Oberkirch 25 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 Strasbourg (48.5839°, 7.7455°, elevation 147 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).