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
September is characterized by a mild reduction in the average high-temperature, from a hot 32°C (89.6°F) in August to a moderately hot 28.5°C (83.3°F). Throughout September, Grombalia's nights cool down to an average of 22.4°C (72.3°F).Heat index
In September, the average heat index is calculated to be a hot 31°C (87.8°F). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
The average relative humidity in September is 64%.Rainfall
In Grombalia, in September, it is raining for 9.5 days, with typically 24mm (0.94") of accumulated precipitation. In Grombalia, during the entire year, the rain falls for 110.8 days and collects up to 294mm (11.57") of precipitation.Daylight
In Grombalia, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:49 and sunset at 18:46. On the last day of September, in Grombalia, sunrise is at 06:12 and sunset at 18:02 CET.
Sunshine
The average sunshine in September is 10.5h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
How hot does it get in Grombalia in September?
What is the average humidity in September in Grombalia?
How many days does it rain in September in Grombalia?
What is the average length of the day in September in Grombalia?
What time are sunrise and sunset in September in Grombalia?
How long on average sun shines in September in Grombalia?
What is the UV index intensity in September in Grombalia?
Average temperature in September
Grombalia, Tunisia
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is August (32°C).
The month with the lowest average high temperature is January (14.8°C).
- Average low temperature in September: 22.4°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is February (8.8°C).
Average pressure in September
Grombalia, Tunisia
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in September
Grombalia, Tunisia
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is February (18.6km/h).
The calmest month (with the lowest average wind speed) is August (12.5km/h).
Average humidity in September
Grombalia, Tunisia
- Average humidity in September: 64%
The months with the highest relative humidity are January, February and March (73%).
The month with the lowest relative humidity is July (54%).
Average rainfall in September
Grombalia, Tunisia
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is March (41mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in September
Grombalia, Tunisia
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is January (13.5 days).
The month with the least rainy days is July (1.4 days).
Average daylight in September /
Average sunshine in September
Grombalia, Tunisia
- Average daylight in September: 12h and 2min
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: 10h and 3min
The month with the most sunshine is August (Average sunshine: 12h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Grombalia, Tunisia
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in September
Grombalia, Tunisia
- Average UV index in September: 6
The months with the highest UV index are June, July and August (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
Grombalia, Tunisia
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in September
Grombalia, Tunisia
- 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).
Grombalia, Tunisia
Weather forecast for your location
2. Allow the app to use your location
