September weather forecastLoandjili, Congo
September
Weather in September
September welcomes back the rainy season in Loandjili with a sharp increase in rainfall to 17mm (0.67"). The sea temperature climbs to 23.8°C (74.8°F), marking the end of the cool sea period. Longer sunshine hours, coupled with a rise in humidity, imposes a subtropical climate for the residents. While the increase in cloud cover produces more frequent overcasts, the high pressures create favourable wind conditions.Temperature
The shift to September in Loandjili signals an average high-temperature of a still warm 25.7°C (78.3°F), subtly varied from August's 24.7°C (76.5°F). Loandjili's nighttime temperatures in September reveal a minimal variation from the daytime highs, averaging at a pleasant 22.4°C (72.3°F).Humidity
The months with the highest humidity in Loandjili are May through December, with an average relative humidity of 83%.Rainfall
In September, the rain falls for 15.3 days. Throughout September, 17mm (0.67") of precipitation is accumulated. Throughout the year, in Loandjili, Congo, there are 217.2 rainfall days, and 881mm (34.69") of precipitation is accumulated.Sea temperature
In September, the average sea temperature is 23.8°C (74.8°F).Note: If someone is sensitive to cold, the enjoyment of swimming in 23.8°C (74.8°F) water hinges on factors like sunshine, wind, and the current air temperature. (For context: Olympic swimming competitions are held in water temperatures of 25°C (77°F) to 28°C (82.4°F).)
Daylight
In Loandjili, the average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 06:11 and sunset at 18:13. On the last day of September, in Loandjili, sunrise is at 05:57 and sunset at 18:06 WAT.
Sunshine
September has the least sunshine of the year in Loandjili, with an average of 5.8h of sunshine.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Loandjili, Congo
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is March (30.2°C).
The month with the lowest average high temperature is August (24.7°C).
- Average low temperature in September: 22.4°C
The month with the highest average low temperature is March (26°C).
The coldest month (with the lowest average low temperature) is July (20.8°C).
Average pressure in September
Loandjili, Congo
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is July (1014.5mbar).
The month with the lowest atmospheric pressure is February (1009.9mbar).
Average wind speed in September
Loandjili, Congo
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is October (11.4km/h).
The calmest month (with the lowest average wind speed) is January (8.7km/h).
Average humidity in September
Loandjili, Congo
- Average humidity in September: 83%
The months with the highest relative humidity are May, June, July, August, September, October, November and December (83%).
The month with the lowest relative humidity is March (80%).
Average rainfall in September
Loandjili, Congo
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is December (159mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Loandjili, Congo
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is December (25.8 days).
The month with the least rainy days is June (5.1 days).
Average sea temperature in September
Loandjili, Congo
- Average sea temperature in September: 23.8°C
The best month for swimming (with the highest average sea temperature) is March (28.9°C).
The coldest month (with the lowest average sea temperature) is July (21.2°C).
Average daylight in September /
Average sunshine in September
Loandjili, Congo
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 5h and 48min
The months with the most sunshine are April, May and December (Average sunshine: 8h and 12min).
The month with the least sunshine is September (Average sunshine: 5h and 48min).
Average sunshine days in September
Loandjili, Congo
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is July (22.4 days).
The month with the least sunshine days is November (2.6 days).
Average UV index in September
Loandjili, Congo
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).
Average cloud cover in September
Loandjili, Congo
- Average cloud cover in September: 62
The month with the most cloud cover is October (Cloud cover 66).
The month with the least cloud cover is May (Cloud cover 40).
Average visibility in September
Loandjili, Congo
- 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).
