Bremerhaven weather in May

In May, Bremerhaven sees average daytime highs of 16°C and overnight lows near 9°C, with 63 mm of rain across 11.5 wet days and about 15.6 hours of daylight. It is the 5th-warmest and 8th-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 22% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of May to 16 h 18 min by month's end. Set against the rest of the year, May is Bremerhaven's 2nd-clearest and 8th-windiest month. For the whole year in context, see Bremerhaven's year-round climate.

Daytime high
16°
5th warmest
Overnight low
8th coldest
Rainfall
63 mm
11.5 wet days
Daylight
15 h 36 min
4:33 AM – 8:11 PM
Cloud cover
65%
2nd clearest
Wind
14 km/h
8th windiest
Solar energy
5.15 kWh/m²
Travel score
4.8
out of 10

Bremerhaven is German city in the Free Hanseatic City of Bremen.

Air quality
Moderate
PM2.5 11.1 µg/m³ · 2019
Density
1,168/km²
people per km²
Founded
1827

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 15°C in the first days to 18°C by the end.

A typical May day in Bremerhaven reaches about 16°C in the afternoon and slips back to 9°C overnight — a 7°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, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1158
2158
3158
4158
5158
6158
7158
8158
9159
10159
11169
12169
13169
14169
15169
16169
17169
181610
191610
201710
211710
221710
231710
241710
251710
261711
271711
281811
291811
301811
311811

How May really feels in Bremerhaven

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.

Bremerhaven weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6713.72.47.80.0
Feb / 5210.62.49.40.1
Mar / 5411.51.511.51.2
Apr12° / 52110.213.73.2
May16° / 6311.5015.64.8
Jun19° / 12°7913016.75.5
Jul21° / 14°9214.3016.35.8
Aug21° / 14°8413.9014.65.9
Sep18° / 12°6610.9012.55.3
Oct13° / 6512.6010.33.3
Nov / 5712.10.38.31.2
Dec / 6613.12.37.30.1

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 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33862
43862
53862
63862
73862
83961
93961
103961
113961
123862
133763
143763
153763
163763
173664
183664
193664
203664
213565
223664
233664
243664
253763
263862
273862
283862
293862
303763
313763

Chance of precipitation in May

Any precipitation

Bremerhaven gets around 63 mm of rain over 11.5 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 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
537
636
736
836
936
1036
1137
1237
1337
1438
1538
1638
1738
1838
1939
2039
2139
2239
2338
2438
2538
2638
2738
2838
2938
3038
3138

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
110000
29910
39910
49910
59910
69910
79820
89820
99820
109820
119730
129730
139640
149640
159550
169550
179460
189460
199460
209271
219271
229181
239181
248992
258992
2687103
2786113
2885114
2984124
3082135
3181145

Wind in May

Winds average 14 km/h in May.

Across May, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 42 min at the start of May to 16 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 96 minutes over May. Sunrise moves from 5:01 AM to 4:13 AM, and sunset from 7:45 PM to 8:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:017:45
214.84:597:47
314.94:577:49
414.94:557:50
515.04:537:52
615.14:517:54
715.14:497:56
815.24:477:57
915.24:457:59
1015.34:438:01
1115.44:418:03
1215.44:408:04
1315.54:388:06
1415.54:368:08
1515.64:348:10
1615.64:338:11
1715.74:318:13
1815.84:298:15
1915.84:288:16
2015.94:268:18
2115.94:258:19
2216.04:248:21
2316.04:228:22
2416.14:218:24
2516.14:198:25
2616.14:188:27
2716.24:178:28
2816.24:168:30
2916.34:158:31
3016.34:148:32
3116.34:138:34

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.15 kWh/m².

For context, solar energy here swings from a low near 0.48 kWh/m² to a high of 5.34 kWh/m² in June across the year — May's 5.15 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.4Bright
315.4Bright
Planning a trip in May

Is May a good time to visit Bremerhaven?

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

4.8
Sightseeing
5th-best month of the year
0.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit Bremerhaven for sightseeing.

What to pack for Bremerhaven in May

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

In May, Bremerhaven sees daytime highs around 16°C and nights near 9°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Bremerhaven in May

The nearest coast averages about 12°C in May — 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 19°C and coldest in February near 4°C.

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

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May12Bracing
Jun15Cool
Jul18Cool
Aug19Cool
Sep17Cool
Oct13Bracing
Nov9Bracing
Dec6Bracing

UV index in Bremerhaven in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Bremerhaven peaks around July 17 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 21 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 17UV 6Dec 21UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May5High
Jun5High
Jul6High
Aug5High
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Bremerhaven?

Bremerhaven sits at 53.6°N, 8.6°E, 2 m above sea level, in Germany. The nearest listed city is Langen, 6.0 km away.

Topography around Bremerhaven

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

Within 3 km, the terrain around Bremerhaven has only modest variations in elevation — a maximum elevation change of 24 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 53 m; within 80 km, only modest variations in elevation — a maximum elevation change of 194 m.

The land around Bremerhaven is covered by artificial surfaces (35%) and water (33%) within 3 km, grassland (45%) within 16 km, and grassland (32%), water (26%) and cropland (23%) within 80 km.

3 km
24 m
16 km
53 m
80 km
194 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Langen 6.0 km · Nordenham 8.0 km · Loxstedt 10 km · Brake (Unterweser) 25 km · Wilhelmshaven 31 km · Varel 34 km · Cuxhaven 36 km · Schwanewede 37 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 Bremerhaven (53.5536°, 8.5755°, elevation 2 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).