Saint Lucia Estuary
South Africa
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Saint Lucia Estuary, South Africa

The first month of the spring, September, is a warm month in Saint Lucia Estuary, South Africa, with average temperature fluctuating between 19.3°C (66.7°F) and 23.3°C (73.9°F).

Temperature

In Saint Lucia Estuary, the average high-temperature in September is practically the same as in August - a warm 23.3°C (73.9°F). In September, the average low-temperature is 19.3°C (66.7°F).

Humidity

In Saint Lucia Estuary, the average relative humidity in September is 74%.

Rainfall

In Saint Lucia Estuary, South Africa, during 13.3 rainfall days, 31mm (1.22") of precipitation is typically accumulated. Throughout the year, in Saint Lucia Estuary, South Africa, there are 196.2 rainfall days, and 699mm (27.52") of precipitation is accumulated.

Sea temperature

In Saint Lucia Estuary, in September, the average water temperature is 22.6°C (72.7°F).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 22.6°C (72.7°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)

Daylight

In Saint Lucia Estuary, the average length of the day is 11.9h.

Sunshine

In Saint Lucia Estuary, South Africa, the average sunshine in September is 6.9h.

UV index

Months with the lowest UV index are July, September and October, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Saint Lucia Estuary?

In September, in Saint Lucia Estuary, the average high-temperature is 23.3°C (73.9°F), and the average low-temperature is 19.3°C (66.7°F).

What is the average humidity in September in Saint Lucia Estuary?

The average relative humidity in September in Saint Lucia Estuary is 74%.

How much does it rain in Saint Lucia Estuary in September?

In Saint Lucia Estuary, South Africa, during September, the rain falls for 13.3 days and regularly aggregates up to 31mm (1.22") of precipitation.

What is the sea temperature in September in Saint Lucia Estuary?

In Saint Lucia Estuary, South Africa, in September, the average water temperature is 22.6°C (72.7°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22.6°C (72.7°F) water may be enjoyable.

How many hours of daylight does Saint Lucia Estuary have in September?

The average length of the day in September in Saint Lucia Estuary is 11.9h.

How many hours of sunshine does Saint Lucia Estuary have in September?

The average sunshine in September is 6.9h.

What are the months with the lowest UV index in Saint Lucia Estuary?

Months with the lowest UV index in Saint Lucia Estuary, South Africa, are July, September and October, with an average maximum UV index of 5.

What is the UV index intensity in September in Saint Lucia Estuary?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Saint Lucia Estuary, South Africa
  • Average high temperature in September: 23.3°C

The warmest month (with the highest average high temperature) is February (27.2°C).
The month with the lowest average high temperature is July (21.9°C).

  • Average low temperature in September: 19.3°C

The month with the highest average low temperature is February (23.7°C).
The coldest month (with the lowest average low temperature) is July (18°C).

Average humidity in September - Saint Lucia Estuary, South Africa
  • Average humidity in September: 74%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is June (68%).

Average rainfall in September - Saint Lucia Estuary, South Africa
  • Average rainfall in September: 31mm

The wettest month (with the highest rainfall) is December (90mm).
The driest month (with the least rainfall) is July (26mm).

Average rainfall days in September - Saint Lucia Estuary, South Africa
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is December (21.8 days).
The month with the least rainy days is June (9.6 days).

Average sea temperature in September - Saint Lucia Estuary, South Africa
  • Average sea temperature in September: 22.6°C

The best month for swimming (with the highest average sea temperature) is February (27.2°C).
The coldest month (with the lowest average sea temperature) is August (21.7°C).

Average daylight in September / Average sunshine in September - Saint Lucia Estuary, South Africa
  • Average daylight in September: 11.9h

The month with the longest days is December (Average daylight: 13.9h).
The month with the shortest days is June (Average daylight: 10.4h).

  • Average sunshine in September: 6.9h

The month with the most sunshine is February (Average sunshine: 8.8h).
The month with the least sunshine is April (Average sunshine: 5.8h).

Average UV index in September - Saint Lucia Estuary, South Africa
  • Average UV index in September: 5

The month with the highest UV index is January (UV index 7).
Months with the lowest UV index are July, September and October (UV index 5).