Haderslev, Denmark experiences average highs of 13°C (55°F) and lows of 7°C (45°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Average highs have warmed by 0.7°C (1.3°F) across the available records.
Haderslev, Denmark Weather & Climate 2026
Monthly climate averages for Haderslev, Denmark. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Sep 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.7/10
Best: May, June, July, August, September
UV Index
3
Low
Temperature 13°C / 7°C
Feels Like 10°C / 4°C
Rainy Days 12
Rainfall 65 mm
Sunshine 8 h
Humidity 81%
Wind Speed 23 km/h
Dew Point 7°C
Snow Days 3 days
Frost Days 7 days
Hottest Month
21°C
August
Avg Low15°C
Rain11days
Coldest Month
1°C
January
Avg High5°C
Rain13days
Driest Month
9days
March
Avg High8°C
Avg Low2°C
Windiest Month
26 km/h
January (Gusts 46)
Sea Temperature
3°C – 19°C
Warmest water: August (
18.8°C
)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 04:42
Daylight 17.4h
Sunset 22:06
Live conditions—
Haderslev on the map · live conditions
Haderslev, Denmark
- Continent
- Europe
- Country
- Denmark
- City
- Haderslev
- Population
- 22K
- Coordinates
- 55.25°, 9.49°
Seasonal Breakdown
Spring
Mar–May
Avg High 12°C
Avg Low 5°C
Rain 9 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 20°C
Avg Low 14°C
Rain 12 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 13°C
Avg Low 9°C
Rain 12 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 5°C
Avg Low 2°C
Rain 12 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 5°C / 1°C . Feb: 5°C / 1°C . Mar: 8°C / 2°C . Apr: 11°C / 4°C . May: 16°C / 9°C . Jun: 20°C / 13°C . Jul: 20°C / 14°C . Aug: 21°C / 15°C . Sep: 18°C / 13°C . Oct: 13°C / 9°C . Nov: 8°C / 5°C . Dec: 6°C / 3°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 68 mm. Feb: 65 mm. Mar: 46 mm. Apr: 53 mm. May: 55 mm. Jun: 74 mm. Jul: 79 mm. Aug: 65 mm. Sep: 68 mm. Oct: 85 mm. Nov: 58 mm. Dec: 63 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 87%. Feb: 84%. Mar: 81%. Apr: 75%. May: 73%. Jun: 75%. Jul: 76%. Aug: 77%. Sep: 80%. Oct: 83%. Nov: 87%. Dec: 89%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 26 km/h . Feb: 25 km/h . Mar: 23 km/h . Apr: 22 km/h . May: 21 km/h . Jun: 21 km/h . Jul: 21 km/h . Aug: 20 km/h . Sep: 21 km/h . Oct: 24 km/h . Nov: 23 km/h . Dec: 24 km/h .
Sunshine
Sunshine
Sunshine: Jan: 3h. Feb: 5h. Mar: 7h. Apr: 10h. May: 12h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 9h. Oct: 6h. Nov: 3h. Dec: 2h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 4°C . Feb: 3°C . Mar: 5°C . Apr: 8°C . May: 13°C . Jun: 17°C . Jul: 18°C . Aug: 19°C . Sep: 18°C . Oct: 13°C . Nov: 9°C . Dec: 5°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 1. Mar: UV 3. Apr: UV 4. May: UV 6. Jun: UV 6. Jul: UV 6. Aug: UV 5. Sep: UV 4. Oct: UV 2. Nov: UV 1. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 5 days. Feb: 4 days. Mar: 3 days. Apr: 1 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 1 days. Dec: 3 days.
Climate Trends
Average highs have warmed by 0.7°C (1.3°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 22°C | Aug · 21°C |
| Coldest month | Feb 2025 · 0°C | Jan · 1°C |
| Wettest month | Jul 2025 · 118 mm | Oct · 85 mm |
| Windiest month | Oct 2025 · 25 km/h | Jan · 26 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May best
Fair June best
Good July best
Excellent August best
Excellent September best
Good October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 5°C / 1°C | 0°C / -4°C | 13days (68 mm) Wet | 2.9h Poor | 87% Very Muggy | 0.8 Low | Poor | View Details |
| February | 5°C / 1°C | 1°C / -4°C | 11days (65 mm) Wet | 4.7h Fair | 84% Humid | 1.4 Low | Poor | View Details |
| March | 8°C / 2°C | 3°C / -2°C | 9days (46 mm) Wet | 7h Good | 81% Humid | 3 Moderate | Poor | View Details |
| April | 11°C / 4°C | 8°C / 0°C | 10days (53 mm) Wet | 10.4h Excellent | 75% Muggy | 4 Moderate | Poor | View Details |
| May best | 16°C / 9°C | 14°C / 6°C | 9days (55 mm) Wet | 12h Excellent | 73% Muggy | 5.5 High | Fair | View Details |
| June best | 20°C / 13°C | 19°C / 11°C | 11days (74 mm) Wet | 12.4h Excellent | 75% Muggy | 5.9 High | Good | View Details |
| July best | 20°C / 14°C | 19°C / 13°C | 14days (79 mm) Wet | 12h Excellent | 76% Humid | 5.6 High | Excellent | View Details |
| August best | 21°C / 15°C | 20°C / 14°C | 11days (65 mm) Wet | 11h Excellent | 77% Humid | 4.9 Moderate | Excellent | View Details |
| September best | 18°C / 13°C | 16°C / 11°C | 11days (68 mm) Wet | 8.5h Good | 80% Humid | 3.7 Moderate | Good | View Details |
| October | 13°C / 9°C | 11°C / 6°C | 14days (85 mm) Wet | 5.5h Fair | 83% Humid | 1.9 Low | Fair | View Details |
| November | 8°C / 5°C | 5°C / 1°C | 12days (58 mm) Wet | 3.1h Poor | 87% Very Muggy | 0.9 Low | Poor | View Details |
| December | 6°C / 3°C | 2°C / -2°C | 13days (63 mm) Wet | 2h Poor | 89% Very Muggy | 0.5 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Haderslev are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Haderslev, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Haderslev is August, with average daytime highs of 21°C (69°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Haderslev is January, with average overnight lows of 1°C (34°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Haderslev is October, averaging 85mm of precipitation across 14 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Haderslev runs through July, October, January, December, with the heaviest rainfall in July. Based on 10-year averages for Haderslev.
Haderslev receives approximately 92 sunshine hours per year. The sunniest month is June with around 12 hours. Based on climate data for Haderslev.
The least favorable months to visit Haderslev are January, February, November, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Haderslev is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Haderslev is 81%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Sea temperatures in Summer average 11°C (52°F), which most swimmers will find too cold without a wetsuit.
Yes, Haderslev receives snow. Months with snowfall average 3 snow days and 3 cm (1 in) of accumulation, with about 7 frost days during winter.
Average wind speeds in Haderslev are 23 km/h (14 mph). The windiest month is January with peak winds reaching 26 km/h (16 mph) (gusts up to 46 km/h / 28 mph).
Haderslev averages 2 clear-sky days per month with overall cloud cover around 69%. The clearest skies occur in April.
The annual average dew point in Haderslev is 7°C (45°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Haderslev has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Haderslev ranges from 4°C (39°F) to 10°C (50°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Haderslev. It earns a climate score of 7/10 with Good.
For June in Haderslev, pack Umbrella, Waterproof jacket, Comfortable walking shoes. With average highs of 20°C (68°F) and 11 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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