September weather forecastDiosso, Congo
September
Weather in September
September in Diosso stands out for its marked climatic changes. The city continues to exhibit warm conditions, coupled with an increasingly humid atmosphere. The rainfall records a significant surge, ascending to 17mm (0.67"), thus marking the commencement of the wet season in Congo. While no drastic alterations are recorded in temperature dynamics, changes in natural elements, especially rainfall becomes prominent. Transitioning into October, the atmospheric moisture continues to spike.Temperature
In September, the average high-temperature in Diosso registers at a still warm 25.7°C (78.3°F), nearly identical to August's 24.7°C (76.5°F). Diosso, during the September nights, maintains an average temperature of 22.4°C (72.3°F), closely aligned with its daytime readings.Humidity
May through December, with an average relative humidity of 83%, are the most humid months in Diosso.Rainfall
In September, the rain falls for 15.3 days. Throughout September, 17mm (0.67") of precipitation is accumulated. Throughout the year, in Diosso, there are 217.2 rainfall days, and 881mm (34.69") of precipitation is accumulated.Daylight
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, sunrise is at 05:58 and sunset at 18:06 WAT.
Sunshine
With an average of 5.8h of sunshine, September has the least sunshine of the year.UV index
In Diosso, Congo, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 6 in September leads to these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Diosso, 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
Diosso, 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
Diosso, 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
Diosso, 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
Diosso, 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
Diosso, 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 daylight in September /
Average sunshine in September
Diosso, 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
Diosso, 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
Diosso, 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
Diosso, 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
Diosso, 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).
