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 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
The transition into September notes an average high-temperature of a still comfortable 18°C (64.4°F), revealing a mild distinction from the 16.6°C (61.9°F) in August. Throughout September nights, Atlantis experiences a consistent temperature average of 10.9°C (51.6°F).Humidity
The months with the highest humidity are June, August and September, with an average relative humidity of 74%.Rainfall
In Atlantis, in September, it is raining for 11.7 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, in Atlantis, there are 111 rainfall days, and 435mm (17.13") of precipitation is accumulated.Daylight
In September, the average length of the day in Atlantis is 11h and 54min.On the first day of the month, sunrise is at 07:03 and sunset at 18:28. On the last day of September, in Atlantis, sunrise is at 06:23 and sunset at 18:48 SAST.
Sunshine
The average sunshine in September is 8h.UV index
The months with the lowest UV index are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Atlantis?
What is the most humid month in Atlantis?
What is the average humidity in September in Atlantis?
How much does it rain in Atlantis in September?
What is the average length of the day in September in Atlantis?
When are sunrise and sunset in September in Atlantis?
How many hours of sunshine does Atlantis have in September?
What is the month with the lowest UV index in Atlantis?
What is the UV index intensity in September in Atlantis?
Average temperature in September
Atlantis, South Africa
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is February (26.1°C).
The month with the lowest average high temperature is August (16.6°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is January (17.7°C).
The coldest months (with the lowest average low temperature) are July and August (10.2°C).
Average pressure in September
Atlantis, South Africa
- Average pressure in September: 1019.6mbar
The month with the highest atmospheric pressure is July (1022mbar).
The month with the lowest atmospheric pressure is February (1013.4mbar).
Average wind speed in September
Atlantis, South Africa
- Average wind speed in September: 15km/h
The windiest month (with the highest average wind speed) is January (17.6km/h).
The calmest month (with the lowest average wind speed) is May (13.4km/h).
Average humidity in September
Atlantis, South Africa
- Average humidity in September: 74%
The months with the highest relative humidity are June, August and September (74%).
The months with the lowest relative humidity are February, April and December (68%).
Average rainfall in September
Atlantis, South Africa
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is June (98mm).
The driest month (with the least rainfall) is February (7mm).
Average rainfall days in September
Atlantis, South Africa
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (4.9 days).
Average daylight in September /
Average sunshine in September
Atlantis, South Africa
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).
Average sunshine days in September
Atlantis, South Africa
- Average sunshine days in September: 16 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is June (14.6 days).
Average UV index in September
Atlantis, South Africa
- Average UV index in September: 4
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in September
Atlantis, South Africa
- Average cloud cover in September: 33
The month with the most cloud cover is June (Cloud cover 34).
The month with the least cloud cover is February (Cloud cover 15).
Average visibility in September
Atlantis, South Africa
- 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).
Atlantis, South Africa
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