September weather forecastRouïba, Algeria
September
Weather in September
The first month of the autumn, September, is still a warm month in Rouïba, Algeria, with an average temperature varying between 27°C (80.6°F) and 21.3°C (70.3°F).Temperature
The arrival of September records an average high-temperature of a still warm 27°C (80.6°F), closely related to the 29.8°C (85.6°F) observed in August. Throughout September, Rouïba experiences a low-temperature average of 21.3°C (70.3°F).Heat index
The heat index value during September is estimated at 28°C (82.4°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
In Rouïba, the average relative humidity in September is 65%.Rainfall
In Rouïba, in September, during 9.1 rainfall days, 24mm (0.94") of precipitation is typically accumulated. In Rouïba, during the entire year, the rain falls for 131.4 days and collects up to 432mm (17.01") of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In Rouïba, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 06:18 and sunset at 19:15. On the last day of September, in Rouïba, sunrise is at 06:41 and sunset at 18:31 CET.
Sunshine
In September, the average sunshine in Rouïba is 9.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during September leads to these instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rouïba, Algeria
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The months with the lowest average high temperature are January and February (14.3°C).
- Average low temperature in September: 21.3°C
The month with the highest average low temperature is August (23.7°C).
The coldest month (with the lowest average low temperature) is February (9°C).
Average pressure in September
Rouïba, Algeria
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is December (1022.1mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in September
Rouïba, Algeria
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest months (with the lowest average wind speed) are September and October (10.9km/h).
Average humidity in September
Rouïba, Algeria
- Average humidity in September: 65%
The month with the highest relative humidity is April (72%).
The month with the lowest relative humidity is July (60%).
Average rainfall in September
Rouïba, Algeria
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is January (64mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in September
Rouïba, Algeria
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is January (15.4 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in September
Rouïba, Algeria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (1mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Rouïba, Algeria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Rouïba, Algeria
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 18min).
Average sunshine days in September
Rouïba, Algeria
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is July (24.8 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in September
Rouïba, Algeria
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in September
Rouïba, Algeria
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 34).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in September
Rouïba, Algeria
- 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).





