Climate and monthly weather forecast
Weather in January
January is the month with the warmest seawater in Plettenberg Bay, South Africa, with an average sea temperature of 20.4°C (68.7°F). Note: In water of 20.4°C (68.7°F), the majority of people do not enjoy swimming. Weather in January »
Weather in February
In Plettenberg Bay, South Africa, in February, the average water temperature is 19.7°C (67.5°F). Note: Swimming in water that is 19.7°C (67.5°F) is not enjoyable for most. Weather in February »
Weather in March
In Plettenberg Bay, South Africa, the average seawater temperature in March is 19.9°C (67.8°F). Note: Swimming in 19.9°C (67.8°F) is not pleasurable for most people. Weather in March »
Weather in April
In Plettenberg Bay, South Africa, in April, the average water temperature is 18.2°C (64.8°F). Note: The majority find it unenjoyable to swim in 18.2°C (64.8°F). Weather in April »
Weather in May
In May, the average sea temperature in Plettenberg Bay, South Africa, is 17.5°C (63.5°F). Note: Swimming in water that is 17.5°C (63.5°F) is not enjoyable for most. Weather in May »
Weather in June
In June, the average sea temperature in Plettenberg Bay, South Africa, is 17.2°C (63°F). Note: In water of 17.2°C (63°F), the majority of people do not enjoy swimming. Weather in June »
Weather in July
The months with the coldest seawater in Plettenberg Bay, South Africa, are July and August, with an average sea temperature of 16.8°C (62.2°F). Note: In 16.8°C (62.2°F), swimming is not an enjoyable activity for most. Weather in July »
Weather in August
July and August, with an average sea temperature of 16.8°C (62.2°F), are months with the coldest seawater in Plettenberg Bay, South Africa. Note: Most people do not take pleasure in swimming in water at 16.8°C (62.2°F). Weather in August »
Weather in September
In Plettenberg Bay, South Africa, the average seawater temperature in September is 17.1°C (62.8°F). Note: When the surface water temperature is 17.1°C (62.8°F), most do not enjoy swimming. Weather in September »
Weather in October
In Plettenberg Bay, South Africa, the average seawater temperature in October is 17.4°C (63.3°F). Note: For the majority, swimming in 17.4°C (63.3°F) does not offer a pleasant experience. Weather in October »
Weather in November
In Plettenberg Bay, South Africa, in November, the average water temperature is 18.8°C (65.8°F). Note: Swimming is not an enjoyable activity for the majority when the water is at 18.8°C (65.8°F). Weather in November »
Weather in December
In December, the average sea temperature in Plettenberg Bay, South Africa, is 19.9°C (67.8°F). Note: For most people, swimming in water at 19.9°C (67.8°F) is not a pleasurable experience. Weather in December »
Updated: Aug 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the month with the warmest sea water?
The month with the warmest seawater is January, with an average sea temperature of 20.4°C (68.7°F).
What is the month with the shortest days?
With an average of 9h and 54min of daylight, June has the shortest days of the year.
When is the sea coldest in Plettenberg Bay?
July and August, with an average sea temperature of 16.8°C (62.2°F), are months with the coldest seawater.
When are the longest days?
With an average of 14h and 24min of daylight, December has the longest days of the year.
Is there Daylight Saving Time (DST)?
Plettenberg Bay does not observe Daylight Saving Time (DST). SAST timezone is used over the entire year.
Average sea temperature
Plettenberg Bay, South Africa
The best month for swimming (with the highest average sea temperature) is January (20.4°C).
The coldest months (with the lowest average sea temperature) are July and August (16.8°C).
Average daylight
Plettenberg Bay, South Africa
- Average daylight in January:
14h and 1min - Average daylight in February:
13h and 2min - Average daylight in March:
12h and 2min - Average daylight in April:
11h and 1min - Average daylight in May:
10h and 2min - Average daylight in June:
9h and 5min
- Average daylight in July:
10h and 1min - Average daylight in August:
10h and 5min - Average daylight in September:
11h and 5min - Average daylight in October:
13h and 0min - Average daylight in November:
13h and 5min - Average daylight in December:
14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
