Sesh IDBeta
Cape Town, Big Bay · South Africa

Cape Town, Big Bay in December

Sea, with a tide. What an average December looks like here, from five years of weather history.

Model: weather history 2021 to 2025
Model mean, kn
11.3
Model gust, kn
23.0
Windy days (model, twintip 14 kn)
21
Direction
SSE
Waves, m
1.6
Surf days
31
Water °C
15
Air °C
24
Sunny days
15
Rain days
4
Wetsuit
4/3

By the model, December is the 2nd windiest month here: 11.3 kn mean against 9.8 kn over the year. Best for wind: Nov, Jan and Feb.

Plan your seshThe planner scores the real forecast for your weight, your gear and your wind.

Season

Best for wind: Nov, Jan and Feb

JanFebMarAprMayJunJulAugSepOctNovDec
Wind, shape of the year
Model: weather history 2021 to 2025
Model mean, kn
11.8
11.3
10.3
8.9
7.5
8.5
8.2
8.6
9.4
10.2
11.3
11.3
Model gust, kn
23.5
22.6
20.5
17.9
15.2
16.2
16.0
17.0
18.8
20.6
23.0
23.0
Windy days (model, twintip 14 kn)
24
20
17
11
8
11
9
11
13
18
22
21
Direction
SSE
SSE
SSE
SSE
NW
NNW
NNW
NW
SSE
SSE
SSE
SSE
Waves, m
1.6
1.6
1.6
1.6
2.2
2.2
2.4
2.3
2.0
1.6
1.7
1.6
Surf days
31
28
31
30
31
30
31
31
30
31
30
31
Water °C
15
15
16
15
14
14
14
14
15
15
15
15
Air °C
26
25
24
21
18
16
14
15
17
21
23
24
Sunny days
19
20
13
15
13
11
11
12
12
15
13
15
Rain days
2
1
5
4
7
11
11
9
7
4
3
4

Wind bar: the month's model mean wind between 09:00 and 18:00 against the windiest month here (full bar). Model rows: daytime (09:00 to 18:00) means; a windy day has 2 hours or more at the sport's minimum; a surf day 2 daylight hours of waves of 0.5 m or more; sunny: daytime cloud 30 % or less; rain: 1 mm or more.

From weather models 2021 to 2025. At spots with thermal wind or sea breeze the model reads several knots low; the bars show the shape of the year, riders know the numbers.

Source: Open-Meteo historical weather and marine archive (CC BY 4.0), weather 2021 to 2025, waves and water 2021 to 2025.