St Helena Bay Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit St Helena Bay.
Climate overview of St Helena Bay
St Helena Bay, Western Cape, South Africa, has a stable climate with little temperature variation across the year. Average daytime temperatures hover around 20°C (68°F), peaking in February at 23°C (73°F) and dipping in August to 17°C (63°F).
The city tends toward dry conditions, with around 288 mm (11 in) of rainfall per year. It does, however, have a distinct dry season from September to May.
St Helena Bay Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in St Helena Bay - and find the best time to visit.
Monthly Temperature in St Helena Bay
With minimal seasonal shifts, St Helena Bay experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a comfortable 23°C (73°F) in February to a moderate 17°C (63°F) in the coolest month, August.
Nights vary from 17°C (63°F) in February to around 12°C (54°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in St Helena Bay
St Helena Bay has a relatively dry climate with low precipitation, averaging 288 mm (11 in) of rainfall annually. The climate in St Helena Bay shows significant variation throughout the year. Expect moderate rainfall in June, the wettest month, with an average of 53 mm (2.1 in) of precipitation over 9 rainy days.
In contrast, the driest month February offers drier and sunnier days, with around 8.4 mm (0.3 in) of rainfall over 2 rainy days. For more details, please visit our St Helena Bay Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit St Helena Bay
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April, September, October, November and December
- Warmest weather: January, February, March and December
- Fewer rainy days: January, February, March, November and December
- Seasonal pattern: A distinct dry season from September to May
Frequently asked questions about the climate in St Helena Bay
What is the best time to visit St Helena Bay?
January, February, March, April, September, October, November and December typically offer the most optimal weather in St Helena Bay. In contrast, June, July and August tend to have less optimal conditions. St Helena Bay has a distinct dry season from September to May.
What temperatures can I expect in St Helena Bay?
Daytime highs range from 17°C (63°F) in August to 23°C (73°F) in February. Nighttime lows range from 12°C (54°F) to 17°C (63°F). Temperatures stay relatively stable year-round.
How much rain does St Helena Bay get?
Annual rainfall is around 288 mm (11 in). June is the wettest month with 53 mm (2.1 in), while February is the driest with 8.4 mm (0.3 in).
St Helena Bay 3-Day Forecast
St Helena Bay on the map
St Helena Bay is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Pretoria
24°C (75°F) Durban
24°C (75°F) Johannesburg22°C (72°F) Gqeberha20°C (68°F) Knysna18°C (64°F) Cape Town17°C (63°F) Hermanus
17°C (63°F) Stellenbosch18°C (64°F) 
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