WeSurf

Year in review

2025 at Ahl Strand

Wind

Sletterhage Fyr · 12 km

Station:

Mean wind

5.5m/s

0.2 below normal

Wind days

126

normally 131

Mostly from

WNW

12 % of hours · SSW 10 %

Strongest gust

28.9m/s

7 January

Wind rose

Share of the year's hours by direction, coloured by strength

4 %8 %12 %NESW
< 2 2–5 5–8 8–11 ≥ 11m/s
Direction< 2 m/s2–5 m/s5–8 m/s8–11 m/s≥ 11 m/s
N1.0 %1.8 %0.0 %0.0 %0.0 %
NNE0.8 %1.7 %0.0 %0.0 %0.0 %
NE0.5 %1.1 %0.0 %0.0 %0.0 %
ENE0.5 %2.2 %0.9 %0.0 %0.0 %
E0.7 %2.9 %1.3 %1.1 %0.5 %
ESE0.7 %1.9 %1.6 %1.5 %0.5 %
SE0.6 %2.2 %2.1 %1.5 %0.4 %
SSE0.7 %2.6 %0.9 %0.1 %0.1 %
S0.7 %2.8 %1.5 %0.2 %0.0 %
SSW0.8 %3.4 %3.2 %2.0 %0.6 %
SW0.7 %2.3 %2.9 %1.5 %0.3 %
WSW0.6 %3.4 %4.6 %1.2 %0.1 %
W0.4 %2.0 %3.6 %3.0 %0.6 %
WNW0.4 %2.0 %3.8 %3.6 %1.7 %
NW0.6 %1.7 %2.6 %1.1 %0.2 %
NNW0.9 %3.1 %1.2 %0.1 %0.0 %

Wind days per month

A wind day: at least 3 daylight hours at ≥ 8 m/s

05101520JanFebMarAprMayJunJulAugSeptOctNovDec
2025 Normal (4 years)
2025Normal (4 years)
Jan1514
Feb613
Mar710
Apr49
May67
Jun116
Jul611
Aug107
Sept1510
Oct2016
Nov1514
Dec1115

When in the day is it windy?

Mean wind hour by hour — most around 01:00

55.560003060912151821
2025 Normal (4 years)
2025Normal (4 years)
005.75.8
015.75.8
025.65.8
035.55.7
045.55.7
055.55.7
065.55.7
075.55.7
085.65.7
095.65.7
105.55.7
115.45.6
125.45.5
135.45.5
145.55.5
155.45.5
165.45.5
175.55.6
185.55.6
195.55.6
205.55.7
215.65.7
225.65.7
235.65.8

Windiest day: 7 January with a mean of 15.0 m/s.

Water

Århus Havn II · 26 km

First day above 15 °C

14 June

normally 30 May

Days above 15 °C

94

normally 106

Warmest water

23.2°C

20 July

Mean temperature

11.5°C

0.6 above normal

Water temperature by month (mean)

05101520JanFebMarAprMayJunJulAugSeptOctNovDec
2025 Normal (4 years)
2025Normal (4 years)
Jan5.95.3
Feb3.24.2
Mar5.65.1
Apr9.67.9
May13.112.3
Jun14.415.4
Jul19.017.2
Aug17.917.8
Sept17.017.3
Oct13.213.2
Nov10.310.0
Dec7.66.0

Air

Sletterhage Fyr · 12 km

Mean temperature

10.5°C

0.6 above normal

Summer days

1

normally 1

Frost days

17

normally 24

Warmest / coldest

25.3/ -4.4°C

11 July · 16 February

Air temperature by month (mean)

05101520JanFebMarAprMayJunJulAugSeptOctNovDec
2025 Normal (4 years)
2025Normal (4 years)
Jan3.63.1
Feb2.03.1
Mar5.64.2
Apr9.47.0
May12.211.9
Jun15.415.9
Jul18.617.2
Aug17.317.4
Sept16.015.7
Oct11.511.6
Nov7.37.4
Dec6.23.8

Weather

Rain: Sibirien · 9.2 km · Sun: Ødum · 35 km

Hours of sunshine

2070hours

normally 1719

Sunny wind days

61

normally 52

Total rain

498mm

91 days with ≥ 1 mm · normally 632 mm

Wind in the rain

14%

normally 17 %

Sunshine hours per month

0100200300400JanFebMarAprMayJunJulAugSeptOctNovDec
2025 Normal (5 years)
2025Normal (5 years)
Jan5849
Feb7368
Mar220154
Apr228230
May303242
Jun272257
Jul231207
Aug247195
Sept206157
Oct10589
Nov6943
Dec5829

Rain per month (mm)

0255075100JanFebMarAprMayJunJulAugSeptOctNovDec
2025 Normal (5 years)
2025Normal (5 years)
Jan5453
Feb1562
Mar1225
Apr3330
May3143
Jun5038
Jul8389
Aug4166
Sept3753
Oct8766
Nov2247
Dec3660

Source: DMI open data (observations and climate data). Normal is the average of the other full years with data for at least 80 % of days. Inland stations measure less wind than the coast.