September weather forecast
Walvis Bay, Namibia

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Weather in September

September brings a noticeable change in Walvis Bay as the city welcomes spring with an increase in high temperatures to 15.7°C (60.3°F). The blend of warming temperatures and a relative humidity of 79% encourage a delightful atmosphere. The sea temperature slowly begins to reciprocate the terrestrial warming, reflecting in an increase to 13.8°C (56.8°F). With daylight hours stretching further to 12, the city bathes in a warm glow, invigorating the inhabitants and visitors' spirits. September’s exceptional weather complements a variety of outdoor activities, from sightseeing to picnicking in the city’s beautiful parks.

Temperature

Walvis Bay experiences its lowest temperatures in September, with an average peak of 15.7°C (60.3°F) and a low of 10.4°C (50.7°F).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Walvis Bay, Namibia, in September, 0mm (0") of precipitation is typically accumulated. Throughout the year, 10mm (0.39") of rain is accumulated.

Sea temperature

In September, the average sea temperature is 13.8°C (56.8°F).
Note: Immersing oneself in 13.8°C (56.8°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.

Daylight

In September, the average length of the day is 11h and 58min.
On the first day of September in Walvis Bay, 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.
Updated: Feb 15, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

What time of the year is the coldest in Walvis Bay?

Walvis Bay notes the coldest temperatures in September, with a average high of 15.7°C (60.3°F) and a low of 10.4°C (50.7°F).

What is the average September temperature in Walvis Bay?

The high-temperature, in September, in Walvis Bay, is 15.7°C (60.3°F), while the low-temperature averages to 10.4°C (50.7°F).

What is the average humidity in September in Walvis Bay?

In Walvis Bay, the average relative humidity in September is 79%.

How much does it rain in Walvis Bay in September?

During September, Walvis Bay regularly aggregates up to 0mm (0") of precipitation.

What is the water temperature in September in Walvis Bay?

In Walvis Bay, in September, the average water temperature is 13.8°C (56.8°F). Swimming in 13.8°C (56.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in September in Walvis Bay?

In Walvis Bay, the average day length in September is 11h and 58min.

When is the sunrise / sunset in September in Walvis Bay?

On the first day of September in Walvis Bay, Namibia, 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.

Average temperature in September
Walvis Bay, Namibia

Average temperature in September - Walvis Bay, Namibia
  • Average high temperature in September: 15.7°C

The warmest months (with the highest average high temperature) are January and March (20.4°C).
The month with the lowest average high temperature is September (15.7°C).

  • Average low temperature in September: 10.4°C

The month with the highest average low temperature is January (15.1°C).
The coldest month (with the lowest average low temperature) is August (9.9°C).

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Average humidity in September
Walvis Bay, Namibia

Average humidity in September - Walvis Bay, Namibia
  • Average humidity in September: 79%

The months with the highest relative humidity are January and March (81%).
The month with the lowest relative humidity is December (65%).

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Average rainfall in September
Walvis Bay, Namibia

Average rainfall in September - Walvis Bay, Namibia
  • Average rainfall in September: 0.1mm

The wettest month (with the highest rainfall) is March (4.4mm).
The driest month (with the least rainfall) is July (0mm).

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Average sea temperature in September
Walvis Bay, Namibia

Average sea temperature in September - Walvis Bay, 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).

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Average daylight in September
Walvis Bay, Namibia

Average daylight in September - Walvis Bay, 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 42min).

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Walvis Bay, Namibia

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