September weather forecastLuanda, Angola

September
Weather in September
September sees a silver lining with a rise in temperature, peaking at 24.4°C (75.9°F). Rainfall remains minimal, with Luanda receiving a scanty 3mm (0.12") amount. Sunshine remains consistent, making outdoor activities a viable choice for locals and tourists alike. The sea temperature sees a slight uptick, hinting at the forthcoming rising trend. As the month proceeds, slight weather changes paint a picture of the ensuing seasons in Luanda.Temperature
September's onset in Luanda records an average high-temperature of a still warm 24.4°C (75.9°F), a near match to August's 23.3°C (73.9°F). Luanda sustains a near constant temperature throughout September, with nighttime averages of 19.4°C (66.9°F).Humidity
The average relative humidity in September in Luanda is 80%.Rainfall
In Luanda, Angola, in September, it is raining for 1 days, with typically 3mm (0.12") of accumulated precipitation. Throughout the year, there are 32 rainfall days, and 325mm (12.8") of precipitation is accumulated.Sea temperature
In September, the average sea temperature in Luanda is 22.3°C (72.1°F).Note: For someone sensitive to cold, swimming in 22.3°C (72.1°F) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 25°C (77°F) and 28°C (82.4°F).)
Daylight
In Luanda, the average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 06:08 and sunset at 18:05. On the last day of September, in Luanda, sunrise is at 05:51 and sunset at 18:02 WAT.
Sunshine
The months with the least sunshine are July through October, with an average of 5h of sunshine.UV index
January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an excessive health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 12 in September interprets into the following recommendations:
Put into effect every precaution of importance, unprotected skin and eyes may get burns swiftly. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat. Before heading out, apply sunscreen with 30 SPF or more to avoid sunburn and harmful radiation effects. Attention! UV strength is notably upped by the reflection of sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Luanda, Angola
- Average high temperature in September: 24.4°C
The warmest month (with the highest average high temperature) is March (30°C).
The month with the lowest average high temperature is October (21.6°C).
- Average low temperature in September: 19.4°C
The months with the highest average low temperature are February, March and April (23.9°C).
The coldest month (with the lowest average low temperature) is October (16.3°C).
Average humidity in September
Luanda, Angola
- Average humidity in September: 80%
The month with the highest relative humidity is August (81%).
The month with the lowest relative humidity is February (75.5%).
Average rainfall in September
Luanda, Angola
- Average rainfall in September: 2.5mm
The wettest month (with the highest rainfall) is April (116.8mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in September
Luanda, Angola
- Average rainfall days in September: 1 days
The month with the highest number of rainy days is April (8 days).
The months with the least rainy days are June, July and August (0 days).
Average sea temperature in September
Luanda, Angola
- Average sea temperature in September: 22.3°C
The best month for swimming (with the highest average sea temperature) is March (29.2°C).
The coldest month (with the lowest average sea temperature) is August (20.9°C).
Average daylight in September /
Average sunshine in September
Luanda, Angola
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 5h and 0min
The month with the most sunshine is February (Average sunshine: 7h and 6min).
The months with the least sunshine are July, August, September and October (Average sunshine: 5h and 0min).
Average UV index in September
Luanda, Angola
- Average UV index in September: 12
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 9).








