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
Ronaldsey records a slight change with September's average high-temperatures adjusting to a still warm 29.2°C (84.6°F) from August's 27.3°C (81.1°F). Ronaldsey records a pronounced decline from the day's peak to an average nighttime low-temperature of 17°C (62.6°F) throughout September.Heat index
During September, the heat index is evaluated at a tropical 30°C (86°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The least humid month is September, with an average relative humidity of 53%.Rainfall
In September, the rain falls for 7.2 days. Throughout September, 9mm (0.35") of precipitation is accumulated. Throughout the year, there are 130.3 rainfall days, and 415mm (16.34") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 58min.On the first day of the month, sunrise is at 06:05 and sunset at 17:43. On the last day of September, in Ronaldsey, sunrise is at 05:35 and sunset at 17:54 SAST.
Sunshine
In September, the average sunshine is 7.8h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the least humid month?
What is the average humidity in September in Ronaldsey?
How many days does it rain in September?
How many hours of daylight does Ronaldsey have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Ronaldsey, South Africa
- Average high temperature in September: 29.2°C
The warmest month (with the highest average high temperature) is December (31.6°C).
The month with the lowest average high temperature is July (24.9°C).
- Average low temperature in September: 17°C
The month with the highest average low temperature is January (20.3°C).
The coldest month (with the lowest average low temperature) is June (12°C).
Average pressure in September
Ronaldsey, South Africa
- Average pressure in September: 1019.3mbar
The month with the highest atmospheric pressure is July (1023.9mbar).
The month with the lowest atmospheric pressure is January (1013.2mbar).
Average wind speed in September
Ronaldsey, South Africa
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is September (11.9km/h).
The calmest month (with the lowest average wind speed) is May (7.8km/h).
Average humidity in September
Ronaldsey, South Africa
- Average humidity in September: 53%
The months with the highest relative humidity are January, February and March (74%).
The month with the lowest relative humidity is September (53%).
Average rainfall in September
Ronaldsey, South Africa
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is December (79mm).
The driest months (with the least rainfall) are June and July (4mm).
Average rainfall days in September
Ronaldsey, South Africa
- Average rainfall days in September: 7.2 days
The month with the highest number of rainy days is January (18.2 days).
The month with the least rainy days is June (2.6 days).
Average daylight in September /
Average sunshine in September
Ronaldsey, South Africa
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 36min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 12min).
The month with the least sunshine is April (Average sunshine: 6h and 18min).
Average sunshine days in September
Ronaldsey, South Africa
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is June (26 days).
The month with the least sunshine days is January (9.7 days).
Average UV index in September
Ronaldsey, South Africa
- Average UV index in September: 6
The months with the highest UV index are January and November (UV index 7).
The months with the lowest UV index are June and July (UV index 5).
Average cloud cover in September
Ronaldsey, South Africa
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Ronaldsey, South Africa
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).
