Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September and October, with an average high-temperature of 20°C (68°F), are marked as the coldest months in Swakopmund.Humidity
In September, the average relative humidity in Swakopmund is 68%.Rainfall
Months with rainfall in Swakopmund are January through May, September through December. September is the first month it rains. Throughout September, in the average 1.1 rainfall days, it receives 1mm (0.04") of precipitation. Throughout the year, in Swakopmund, there are 24.7 rainfall days, and 42mm (1.65") of precipitation is accumulated.Sea temperature
In September, the average sea temperature in Swakopmund is 13.8°C (56.8°F).Note: Swimming at temperatures less than 10°C (50°F) in 13.8°C (56.8°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 13°C (55.4°F) without adequate warmth can be discomforting.
Daylight
The average length of the day in September is 11h and 58min.On the first day of September, sunrise is at 07:11 and sunset at 18:51. On the last day of the month, sunrise is at 06:42 and sunset at 19:00 CAT.
Sunshine
August through December, with an average of 9.9h of sunshine, are months with the most sunshine.UV index
May through December, with an average maximum UV index of 5, are months with the lowest UV index in Swakopmund. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What time of the year is the coldest in Swakopmund?
What is the average September temperature in Swakopmund?
What is the average humidity in September in Swakopmund?
When does it start to rain in Swakopmund?
How cold is the water in September in Swakopmund?
How many hours of daylight does Swakopmund have in September?
When are sunrise and sunset in September in Swakopmund?
What are the months with the most sunshine in Swakopmund?
How many hours of sunshine does Swakopmund have in September?
What are the months with the lowest UV index in Swakopmund?
What is the UV index reading in September in Swakopmund?
Average temperature in September
Swakopmund, Namibia
- Average high temperature in September: 20°C
The warmest month (with the highest average high temperature) is April (23.5°C).
The months with the lowest average high temperature are September and October (20°C).
- Average low temperature in September: 14°C
The month with the highest average low temperature is March (19.3°C).
The coldest months (with the lowest average low temperature) are August and September (14°C).
Average pressure in September
Swakopmund, Namibia
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is July (1018.2mbar).
The month with the lowest atmospheric pressure is February (1011.2mbar).
Average wind speed in September
Swakopmund, Namibia
- Average wind speed in September: 16.9km/h
The windiest month (with the highest average wind speed) is October (17.7km/h).
The calmest month (with the lowest average wind speed) is January (14.3km/h).
Average humidity in September
Swakopmund, Namibia
- Average humidity in September: 68%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is July (54%).
Average rainfall in September
Swakopmund, Namibia
- Average rainfall in September: 1mm
The wettest months (with the highest rainfall) are February and March (10mm).
The driest months (with the least rainfall) are June, July and August (0mm).
Average rainfall days in September
Swakopmund, Namibia
- Average rainfall days in September: 1.1 days
The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is August (0.2 days).
Average sea temperature in September
Swakopmund, Namibia
- Average sea temperature in September: 13.8°C
The best month for swimming (with the highest average sea temperature) is February (19.1°C).
The coldest month (with the lowest average sea temperature) is August (13.6°C).
Average daylight in September /
Average sunshine in September
Swakopmund, Namibia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 5min
The months with the most sunshine are August, September, October, November and December (Average sunshine: 9h and 54min).
The month with the least sunshine is April (Average sunshine: 9h and 36min).
Average sunshine days in September
Swakopmund, Namibia
- Average sunshine days in September: 28.6 days
The months with the most sunshine days are July and August (30.5 days).
The month with the least sunshine days is February (22.6 days).
Average UV index in September
Swakopmund, Namibia
- Average UV index in September: 5
The months with the highest UV index are January, February, March and April (UV index 6).
The months with the lowest UV index are May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in September
Swakopmund, Namibia
- Average cloud cover in September: 7
The months with the most cloud cover are January and February (Cloud cover 17).
The months with the least cloud cover are May, June and July (Cloud cover 3).
Average visibility in September
Swakopmund, Namibia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Swakopmund, Namibia
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