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
Weather in September
Temperature
The commencement of September introduces an average high-temperature of a warm 25°C (77°F), closely mirroring the preceding month. In Amsterdam, a significant divergence from daytime highs is recorded, with average lows of 11.1°C (52°F) during September nights.Humidity
The average relative humidity in September in Amsterdam, South Africa, is 57%.Rainfall
In Amsterdam, during September, the rain falls for 6.7 days and regularly aggregates up to 11mm (0.43") of precipitation. In Amsterdam, during the entire year, the rain falls for 145.6 days and collects up to 538mm (21.18") of precipitation.Daylight
In Amsterdam, the average length of the day in September is 11h and 56min.On the first day of the month, sunrise is at 06:09 and sunset at 17:44. On the last day of September, sunrise is at 05:37 and sunset at 17:57 SAST.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Amsterdam, South Africa, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Adopt protective measures - It is advised to guard against sun damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What are the temperatures in Amsterdam in September?
What is the average humidity in September in Amsterdam?
How many days does it rain in September in Amsterdam?
What is the average length of the day in September in Amsterdam?
When is the sunrise / sunset in September in Amsterdam?
How long on average sun shines in September in Amsterdam?
What is the UV index intensity in September in Amsterdam?
Average temperature in September
Amsterdam, South Africa
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is December (26.3°C).
The month with the lowest average high temperature is July (19.4°C).
- Average low temperature in September: 11.1°C
The months with the highest average low temperature are January and December (15.2°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).
Average pressure in September
Amsterdam, South Africa
- Average pressure in September: 1019.3mbar
The month with the highest atmospheric pressure is July (1024.3mbar).
The months with the lowest atmospheric pressure are January and December (1014.4mbar).
Average wind speed in September
Amsterdam, South Africa
- Average wind speed in September: 9.4km/h
The windiest months (with the highest average wind speed) are June and September (9.4km/h).
The calmest month (with the lowest average wind speed) is March (6.7km/h).
Average humidity in September
Amsterdam, South Africa
- Average humidity in September: 57%
The months with the highest relative humidity are January, February and March (82%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Amsterdam, South Africa
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is January (105mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in September
Amsterdam, South Africa
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is January (23 days).
The month with the least rainy days is June (2.6 days).
Average daylight in September /
Average sunshine in September
Amsterdam, South Africa
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is October (Average sunshine: 9h and 30min).
The month with the least sunshine is April (Average sunshine: 6h and 36min).
Average sunshine days in September
Amsterdam, South Africa
- Average sunshine days in September: 21.4 days
The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is January (5 days).
Average UV index in September
Amsterdam, South Africa
- Average UV index in September: 5
The month with the highest UV index is November (UV index 6).
The months with the lowest UV index are April, May, June and July (UV index 4).
Average cloud cover in September
Amsterdam, South Africa
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and July (Cloud cover 14).
Average visibility in September
Amsterdam, South Africa
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March and December (7km).
Amsterdam, South Africa
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