September weather forecastAr Rustaq, Oman
September
Weather in September
September in Ar Rustaq, Oman, presents an interesting contrast between gradually falling temperatures and declining rainfall. Notably, the lowest rainfall of the year occurs this month, standing at just 1mm (0.04"). A taper in temperatures resonates through the transition from September to October, along with increased cloud cover. Despite the shortening daylight span, a significant 11.6 hours are still being bathed in sunlight. The seasonally typical wind speed prevails, maintaining a pleasing breeze.Temperature
Ar Rustaq marks the onset of September with an average high-temperature of a still fiery hot 36°C (96.8°F), subtly divergent from August's 37.8°C (100°F). An average nighttime temperature of 25.2°C (77.4°F) is recorded in Ar Rustaq during September.Humidity
In Ar Rustaq, the average relative humidity in September is 31%.Rainfall
September is the month with the least rainfall. Rain falls for 1.6 days and accumulates 1mm (0.04") of precipitation.Daylight
In Ar Rustaq, the average length of the day in September is 12h and 17min.On the first day of the month, sunrise is at 05:52 and sunset at 18:27. On the last day of September, sunrise is at 06:01 and sunset at 17:58 +04.
Sunshine
In Ar Rustaq, the average sunshine in September is 11.6h.UV index
In Ar Rustaq, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 7 during September translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ar Rustaq, Oman
- Average high temperature in September: 36°C
The warmest month (with the highest average high temperature) is June (39.1°C).
The month with the lowest average high temperature is January (22°C).
- Average low temperature in September: 25.2°C
The month with the highest average low temperature is July (28.3°C).
The coldest month (with the lowest average low temperature) is January (12°C).
Average pressure in September
Ar Rustaq, Oman
- Average pressure in September: 1005.6mbar
The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is July (998.4mbar).
Average wind speed in September
Ar Rustaq, Oman
- Average wind speed in September: 5.3km/h
The windiest month (with the highest average wind speed) is June (7km/h).
The calmest month (with the lowest average wind speed) is November (4.4km/h).
Average humidity in September
Ar Rustaq, Oman
- Average humidity in September: 31%
The month with the highest relative humidity is January (50%).
The month with the lowest relative humidity is May (23%).
Average rainfall in September
Ar Rustaq, Oman
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is August (18mm).
The driest month (with the least rainfall) is September (1mm).
Average rainfall days in September
Ar Rustaq, Oman
- Average rainfall days in September: 1.6 days
The months with the highest number of rainy days are July and August (7.2 days).
The month with the least rainy days is September (1.6 days).
Average daylight in September /
Average sunshine in September
Ar Rustaq, Oman
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in September: 11h and 36min
The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).
Average sunshine days in September
Ar Rustaq, Oman
- Average sunshine days in September: 28.1 days
The month with the most sunshine days is September (28.1 days).
The month with the least sunshine days is August (22.5 days).
Average UV index in September
Ar Rustaq, Oman
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in September
Ar Rustaq, Oman
- Average cloud cover in September: 4
The month with the most cloud cover is July (Cloud cover 13).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility in September
Ar Rustaq, Oman
- 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).





