Germany Hamburg Weather in May — Climate Guide
May in Hamburg is very-high
Hamburg Weather in May — Quick Answer
As of 2026- Avg temp
- 18° / 8°
- Rainfall
- 54mm · 13 days
- Crowds
- Busy
As of 2026, Hamburg in May averages a high of 18°C and low of 8°C with 54mm of rain over about 13 days. Warm spring — around 18°C/8°C, pleasant and sunny by Hamburg standards, with cool evenings by the water. Light layers, a t-shirt or shirt, and a light jacket or sweater for the evening, plus a rain shell just in case.
May is very-high for Hamburg.
May is one of Hamburg's best months — warm, sunny by local standards, with long days and the city fully outdoors. It averages around 18°C/8°C, though evenings by the water stay cool.
This is when Hamburg shines: the Alster fills with sailboats and rowers, café terraces and beer gardens open, harbor tours run at full tilt, and Planten un Blomen and the parks are lush. The early-May Hafengeburtstag (Harbor Birthday) is a spectacular maritime festival — tall ships, a parade of vessels on the Elbe, and fireworks — and a great time to feel the city's port identity, though it draws big crowds.
Travel score
Hamburg May Weather Stats
Avg High
18°C
Avg Low
8°C
Rainy Days
13
54mm total
Sunshine
7h
Daily avg
Humidity
71%
comfortable
UV Index
5
Moderate
Wind
16 km/h
Gusts 32
Crowds
Busy
At attractions
May Sunrise & Sunset
Air Quality
PM2.5
11 μg/m³
PM10
20 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
18°C
Nighttime
8°C
Humidity and wind affect how the actual temperature feels.
Wind
16 km/h
Max gust 32 km/h
Activities Recommended for May
May Travel Pros & Cons
Pros
- One of the year's best months — warm and sunny
- Long days and lush parks
- Hafengeburtstag maritime festival (early May)
- Alster sailing and terrace season in full swing
Cons
- Higher prices and bigger crowds
- Public holidays bring closures and crowds
- Still cool by the water in the evening
- Occasional showers
May Events & Festivals
- Hafengeburtstag (Harbor Birthday, early May) — huge maritime festival
- May Day (May 1) — public holiday
- Ascension & Whitsun holidays (dates vary)
- Peak outdoor and sailing season begins on the Alster
Hamburg in May — Full Picture
May is one of Hamburg's best months — warm, sunny by local standards, with long days and the city fully outdoors. It averages around 18°C/8°C, though evenings by the water stay cool.
This is when Hamburg shines: the Alster fills with sailboats and rowers, café terraces and beer gardens open, harbor tours run at full tilt, and Planten un Blomen and the parks are lush. The early-May Hafengeburtstag (Harbor Birthday) is a spectacular maritime festival — tall ships, a parade of vessels on the Elbe, and fireworks — and a great time to feel the city's port identity, though it draws big crowds.
With the better weather come higher prices and busier sights, so book ahead. Several public holidays (May Day, Ascension, Whitsun) can add crowds and closures.
Pack light layers plus an evening jacket and a rain shell — even a fine May can throw a shower. May rewards travelers who want Hamburg at its outdoor best.
What to Wear & What to Pack
Warm spring — around 18°C/8°C, pleasant and sunny by Hamburg standards, with cool evenings by the water. Light layers, a t-shirt or shirt, and a light jacket or sweater for the evening, plus a rain shell just in case.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current13°C
4.3°C
13.3/mo
Summer (Jun·Jul·Aug)
21.3°C
12.3°C
13.7/mo
Autumn (Sep·Oct·Nov)
13°C
7°C
14.3/mo
Winter (Dec·Jan·Feb)
4.7°C
-0.7°C
16.7/mo
Hamburg Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 4° | -1° | 18d·64mm | 1.5h | 87% | 1 | Quiet | Low season | |
| 5° | -1° | 15d·47mm | 2.5h | 85% | 1 | Quiet | Low season | |
| 8° | 1° | 14d·51mm | 3.5h | 81% | 2 | Moderate | Shoulder | |
| 13° | 4° | 13d·46mm | 5h | 75% | 4 | Moderate | Shoulder | |
| May (Best) | 18° | 8° | 13d·54mm | 7h | 71% | 5 | Busy | Peak |
| June (Best) | 20° | 11° | 14d·75mm | 7.5h | 71% | 6 | Very busy | Peak |
| July (Best) | 22° | 13° | 14d·84mm | 7h | 73% | 6 | Very busy | Peak |
| August (Best) | 22° | 13° | 13d·79mm | 6.5h | 75% | 5 | Very busy | Peak |
| 18° | 11° | 13d·68mm | 5h | 79% | 4 | Busy | Peak | |
| 13° | 7° | 14d·64mm | 3h | 84% | 2 | Moderate | Shoulder | |
| 8° | 3° | 16d·64mm | 1.5h | 88% | 1 | Moderate | Shoulder | |
| 5° | 0° | 17d·64mm | 1h | 89% | 1 | Busy | Peak |
View Other Months
Hamburg May Hotel Picks
Frequently Asked Questions
Is May a good time to visit Hamburg?
Hamburg in May is very-high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Hamburg in May?
Hamburg May averages a high of 18°C and a low of 8°C.
Does it rain much in Hamburg in May?
Hamburg May averages 54mm of rainfall over about 13 rainy days.
What should I wear in Hamburg in May?
Warm spring — around 18°C/8°C, pleasant and sunny by Hamburg standards, with cool evenings by the water. Light layers, a t-shirt or shirt, and a light jacket or sweater for the evening, plus a rain shell just in case.
What time are sunrise and sunset in Hamburg in May?
Hamburg May sunrise is 05:25 and sunset is 21:10, with 15h 45min of daylight.
What's the air quality like in Hamburg in May?
Hamburg May air quality (AQI) averages 33, rated Good. PM2.5 averages 11μg/m³.
What activities are recommended in Hamburg in May?
In May, Hamburg is great for Hafengeburtstag maritime festival, Alster sailing and lakeside cafés, Harbor boat and ferry tours.
Is May peak season in Hamburg?
Hamburg May crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Hamburg
View Other Months
Planning a May trip to Hamburg?
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.