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
The average high-temperature mildly increases in September, edging from 23.6°C (74.5°F) in August to a still warm 27.5°C (81.5°F). Otjiserandu experiences a substantial decline from the daytime high temperatures in September, settling on an average low of 12.3°C (54.1°F).Humidity
September is the least humid month, with an average relative humidity of 19%.Rainfall
January through May, September through December are months with rainfall. September is the first month it rains. Throughout September, in the average 1.7 rainfall days, it receives 2mm (0.08") of precipitation. In Otjiserandu, during the entire year, the rain falls for 78 days and collects up to 298mm (11.73") of precipitation.Daylight
In Otjiserandu, the average length of the day in September is 11h and 58min.On the first day of September, sunrise is at 07:00 and sunset at 18:41. On the last day of the month, sunrise is at 06:32 and sunset at 18:49 CAT.
Sunshine
In September, the average sunshine is 9.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during September leads to these instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Otjiserandu in September?
What is the least humid month?
What is the average humidity in September?
When does it start raining?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Otjiserandu, Namibia
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is October (29.5°C).
The month with the lowest average high temperature is July (19.7°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is December (18.8°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).
Average pressure in September
Otjiserandu, Namibia
- Average pressure in September: 1016.3mbar
The month with the highest atmospheric pressure is July (1021.7mbar).
The month with the lowest atmospheric pressure is January (1010.7mbar).
Average wind speed in September
Otjiserandu, Namibia
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is October (12.7km/h).
The calmest month (with the lowest average wind speed) is March (9.7km/h).
Average humidity in September
Otjiserandu, Namibia
- Average humidity in September: 19%
The month with the highest relative humidity is March (53%).
The month with the lowest relative humidity is September (19%).
Average rainfall in September
Otjiserandu, Namibia
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is February (93mm).
The driest months (with the least rainfall) are June, July and August (0mm).
Average rainfall days in September
Otjiserandu, Namibia
- Average rainfall days in September: 1.7 days
The month with the highest number of rainy days is February (15.1 days).
The month with the least rainy days is June (0.2 days).
Average daylight in September /
Average sunshine in September
Otjiserandu, Namibia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is November (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 9h and 18min).
Average sunshine days in September
Otjiserandu, Namibia
- Average sunshine days in September: 27.9 days
The month with the most sunshine days is July (30.7 days).
The month with the least sunshine days is February (11 days).
Average UV index in September
Otjiserandu, Namibia
- Average UV index in September: 5
The months with the highest UV index are January, February, October, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 4).
Average cloud cover in September
Otjiserandu, Namibia
- Average cloud cover in September: 7
The month with the most cloud cover is February (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 2).
Average visibility in September
Otjiserandu, Namibia
- 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).
