Mannheim weather in May

In May, Mannheim sees average daytime highs of 19°C and overnight lows near 10°C, with 67 mm of rain across 11.6 wet days and about 15.1 hours of daylight. It is the 5th-warmest and 2nd-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 21% 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 42 min by month's end. Set against the rest of the year, May is Mannheim's 6th-clearest and 8th-windiest month. For the whole year in context, see Mannheim's year-round climate.

Daytime high
19°
5th warmest
Overnight low
10°
8th coldest
Rainfall
67 mm
11.6 wet days
Daylight
15 h 06 min
4:49 AM – 7:56 PM
Cloud cover
65%
6th clearest
Wind
10 km/h
8th windiest
Solar energy
5.23 kWh/m²
Travel score
5.9
out of 10

Mannheim is city in Baden-Württemberg, Germany.

Air quality
Moderate
PM2.5 11.6 µg/m³ · 2019
Density
2,125/km²
people per km²
Founded
~766 CE

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 Mannheim reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°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 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1188
2188
3189
4189
5189
6189
7189
8189
9199
10199
11199
12199
131910
141910
151910
161910
171910
182010
192010
202010
212010
222011
232011
242011
252111
262111
272111
282111
292112
302112
312112

How May really feels in Mannheim

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.

Mannheim weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°5911.72.88.40.0
Feb / 5010.12.59.80.5
Mar11° / 5711.2111.52.5
Apr15° / 4410013.44.6
May19° / 10°6711.6015.15.9
Jun23° / 13°5710.70166.6
Jul25° / 15°6210.9015.66.7
Aug25° / 15°539.8014.26.9
Sep20° / 11°559.1012.46.3
Oct15° / 6011.10.110.54.1
Nov / 6211.30.68.91.5
Dec / 7213.92.780.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23862
33763
43763
53763
63763
73664
83664
93664
103664
113565
123565
133664
143664
153664
163763
173664
183664
193664
203664
213664
223664
233664
243664
253664
263664
273763
283763
293763
303664
313664

Chance of precipitation in May

Any precipitation

Mannheim gets around 67 mm of rain over 11.6 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 38% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
240
340
440
540
640
739
839
939
1039
1139
1239
1339
1439
1539
1639
1738
1838
1937
2037
2136
2236
2336
2435
2535
2635
2735
2835
2935
3036
3136

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 90% 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
49730
59640
69640
79640
89550
99550
109550
119550
129460
139460
149460
159370
169370
179181
189181
199091
209091
2188102
2287112
2386122
2484133
2583143
2682153
2780164
2879174
2977185
3076195
3174206

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 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
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 18 min at the start of May to 15 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over May. Sunrise moves from 5:13 AM to 4:32 AM, and sunset from 7:34 PM to 8:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:137:34
214.45:117:35
314.55:097:37
414.55:087:38
514.65:067:40
614.65:047:41
714.75:037:43
814.75:017:44
914.84:597:46
1014.84:587:47
1114.94:567:49
1214.94:557:50
1315.04:537:52
1415.04:527:53
1515.14:507:54
1615.14:497:56
1715.24:487:57
1815.24:467:59
1915.34:458:00
2015.34:448:01
2115.34:428:03
2215.44:418:04
2315.44:408:05
2415.54:398:06
2515.54:388:08
2615.54:378:09
2715.64:368:10
2815.64:358:11
2915.64:348:12
3015.74:338:13
3115.74:328:15

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.23 kWh/m².

For context, solar energy here swings from a low near 0.72 kWh/m² to a high of 5.61 kWh/m² in June across the year — May's 5.23 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Is May a good time to visit Mannheim?

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

5.9
Sightseeing
5th-best month of the year
2.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Mannheim for sightseeing.

What to pack for Mannheim in May

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

In May, Mannheim sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

UV index in Mannheim 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 Mannheim peaks around July 15 at about 7 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowJul 15UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul7Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Mannheim 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 Mannheim is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (November, 9 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Mannheim's WHO annual average of 11.6 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1615 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar13Moderate
Apr15Moderate
May13Moderate
Jun14Moderate
Jul12Good
Aug12Good
Sep11Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Mannheim?

Mannheim sits at 49.5°N, 8.5°E, 100 m above sea level, in Germany. The nearest listed city is Ludwigshafen am Rhein, 2.0 km away.

Topography around Mannheim

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

Within 3 km, the terrain around Mannheim has only modest variations in elevation — a maximum elevation change of 27 m around an average of 97 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 375 m; within 80 km, large variations in elevation — a maximum elevation change of 836 m.

The land around Mannheim is covered by artificial surfaces (62%) and trees (24%) within 3 km, cropland (36%), trees (26%) and artificial surfaces (24%) within 16 km, and trees (50%) and cropland (25%) within 80 km.

3 km
27 m
16 km
375 m
80 km
836 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Ludwigshafen am Rhein 2.0 km · Gartenstadt 6.0 km · Frankenthal 10 km · Viernheim 10 km · Lampertheim 12 km · Schifferstadt 13 km · Schwetzingen 15 km · Weinheim 16 km

Germany travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 80% of US
price level, 2025
GDP per capita
$60,496
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.9
per 100k, 2023
Road deaths
3.8
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 615
Religion
none 44%Roman Catholic 25%Protestant 23%other 5%

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 Mannheim (49.4891°, 8.4669°, elevation 100 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).