Climate Insights for Simon's Town

City of Cape Town, Western Cape, South Africa

Hottest
Januar
20°C peak
Coldest
August
13°C low
Wettest
Juni
115mm rain
Best to Visit
Januar, Februar, März
Mild temps & low rain

Climate Overview

The climate in Simon's Town is temperate. The average annual temperature is 17°C and approximately 566mm of precipitation falls per year. Juni is the wettest month, receiving around 115mm of rainfall. Simon's Town is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: Januar, Februar, Dezember. The coldest months are August, Juli, September, when temperatures can drop to 13°C.

Temperature

10° 15° 20° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 20° Average: 19° Min: 18° Feb Max: 20° Average: 19° Min: 18° Mar Max: 19° Average: 18° Min: 17° Apr Max: 18° Average: 17° Min: 16° May Max: 17° Average: 16° Min: 15° Jun Max: 16° Average: 15° Min: 14° Jul Max: 15° Average: 14° Min: 13° Aug Max: 15° Average: 14° Min: 13° Sep Max: 16° Average: 15° Min: 13° Oct Max: 17° Average: 16° Min: 15° Nov Max: 18° Average: 17° Min: 16° Dec Max: 19° Average: 19° Min: 18°
Max
Average
Min

Simon's Town has relatively stable temperatures year-round, staying within a 7°C range. Januar is the warmest month, though highs remain moderate at 20°C with a mean of 19°C. August is the coolest month, with minimum temperatures around 13°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 13mm Feb Precipitation: 12mm Mar Precipitation: 27mm Apr Precipitation: 30mm May Precipitation: 62mm Jun Precipitation: 115mm Jul Precipitation: 110mm Aug Precipitation: 75mm Sep Precipitation: 50mm Oct Precipitation: 27mm Nov Precipitation: 22mm Dec Precipitation: 23mm
Precipitation

Simon's Town is a relatively dry area, receiving approximately 566mm of precipitation annually, which averages out to around 47mm per month. The wettest month is June, averaging 115mm of rainfall. July and August also tend to see above-average precipitation. The driest month is February, with just 12mm. That's 104mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h 30km/h 35km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 35km/h Feb Wind Speed: 33km/h Mar Wind Speed: 32km/h Apr Wind Speed: 30km/h May Wind Speed: 27km/h Jun Wind Speed: 32km/h Jul Wind Speed: 31km/h Aug Wind Speed: 31km/h Sep Wind Speed: 32km/h Oct Wind Speed: 33km/h Nov Wind Speed: 33km/h Dec Wind Speed: 33km/h
Wind Speed

Simon's Town is very windy, with an average annual wind speed of 32km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 35km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in May, with average winds dropping to 27km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 8km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 31km/h in winter, 33km/h in spring, 34km/h in summer, 30km/h in autumn.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

2 days until Autumn

It is currently winter in Simon's Town, which began on June 21, 2026. Simon's Town is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in Januar at around 20°C, while the coldest stretch bottoms out in August near 13°C. Autumn is next, beginning on March 20, 2026 — 2 days from now.

Spring

Temperatures range from 13 to 18°C. Rainfall is relatively light, with around 99mm over the season and a monthly average of 33mm. Winds are strong, averaging 33km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 18 to 20°C. Rainfall is relatively light, with around 48mm over the season and a monthly average of 16mm. Winds are strong, averaging 34km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from 15 to 19°C. Rainfall is relatively light, with around 119mm over the season and a monthly average of 40mm. Winds are strong, averaging 30km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from 13 to 16°C. Precipitation is moderate at around 300mm for the season, averaging 100mm per month. Winds are strong, averaging 31km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 19°
Feb 19°
Mar 18°
Apr 17°
May 16°
Jun 15°
Jul 14°
Aug 14°
Sep 15°
Oct 16°
Nov 17°
Dec 19°

The best time to visit Simon's Town is during Januar, Februar, März, April, Mai, Oktober, November and Dezember, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 27mm per month. By contrast, August can be quite cold with temperatures dropping to 13°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Simon's Town based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
18 °C
20 °C
35 km/h
13 mm
0 cm
Feb
18 °C
20 °C
33 km/h
12 mm
0 cm
Mar Current
17 °C
19 °C
32 km/h
27 mm
0 cm
Apr
16 °C
18 °C
30 km/h
30 mm
0 cm
May
15 °C
17 °C
27 km/h
62 mm
0 cm
Jun
14 °C
16 °C
32 km/h
115 mm
0 cm
Jul
13 °C
15 °C
31 km/h
110 mm
0 cm
Aug
13 °C
15 °C
31 km/h
75 mm
0 cm
Sep
13 °C
16 °C
32 km/h
50 mm
0 cm
Oct
15 °C
17 °C
33 km/h
27 mm
0 cm
Nov
16 °C
18 °C
33 km/h
22 mm
0 cm
Dec
18 °C
19 °C
33 km/h
23 mm
0 cm
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Metric (°C, km/h)