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
September
Weather in September
Temperature
Tchimpassi experiences an average high-temperature of a still moderately hot 25.7°C (78.3°F) with the onset of September, subtly varied from August's 24.7°C (76.5°F). September nights reveal a minor deviation from daytime highs, with a mean low-temperature of 22.4°C (72.3°F).Humidity
The months with the highest humidity in Tchimpassi are May through December, with an average relative humidity of 83%.Rainfall
In Tchimpassi, during September, the rain falls for 15.3 days and regularly aggregates up to 17mm (0.67") of precipitation. Throughout the year, in Tchimpassi, there are 217.2 rainfall days, and 881mm (34.69") of precipitation is accumulated.Daylight
In Tchimpassi, the average length of the day in September is 12h and 5min.On the first day of September in Tchimpassi, sunrise is at 06:11 and sunset at 18:12. On the last day of the month, sunrise is at 05:57 and sunset at 18:06 WAT.
Sunshine
The month with the least sunshine is September, with an average of 5.8h of sunshine.UV index
In Tchimpassi, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Tchimpassi?
What are the most humid months in Tchimpassi?
What is the average humidity in September in Tchimpassi?
How many days does it rain in September in Tchimpassi?
What is the average length of the day in September in Tchimpassi?
What time are sunrise and sunset in September in Tchimpassi?
What is the month with the least sunshine in Tchimpassi?
How many hours of sunshine does Tchimpassi have in September?
How high is the UV index in September in Tchimpassi?
Average temperature in September
Tchimpassi, 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
Tchimpassi, 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
Tchimpassi, 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
Tchimpassi, 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
Tchimpassi, 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
Tchimpassi, 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
Tchimpassi, Congo
- Average daylight in September: 12h and 1min
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 5min
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
Tchimpassi, 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
Tchimpassi, 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
Tchimpassi, 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
Tchimpassi, 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).
