September weather forecastMersa, Ethiopia
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Mersa, Ethiopia, with an average temperature fluctuating between 21.8°C (71.2°F) and 10.2°C (50.4°F).Temperature
September denotes a minimal variation in the average high-temperature to a still agreeable 21.8°C (71.2°F) from August's 21.7°C (71.1°F). During the month of September, Mersa's nighttime temperature lowers to an average of 10.2°C (50.4°F).Humidity
The average relative humidity in September is 65%.Rainfall
In Mersa, in September, it is raining for 15.5 days, with typically 57mm (2.24") of accumulated precipitation. In Mersa, during the entire year, the rain falls for 162.5 days and collects up to 755mm (29.72") of precipitation.Daylight
In September, the average length of the day is 12h and 11min.On the first day of the month, sunrise is at 06:11 and sunset at 18:31. On the last day of September, sunrise is at 06:10 and sunset at 18:12 EAT.
Sunshine
In September, the average sunshine is 9.6h.UV index
The months with the lowest UV index are January, March, September through December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 4 in September translates into this advice:
Exercise prevention - Precautions against solar damage are endorsed. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mersa, Ethiopia
- Average high temperature in September: 21.8°C
The warmest month (with the highest average high temperature) is June (24.8°C).
The month with the lowest average high temperature is December (19.3°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is November (8.1°C).
Average pressure in September
Mersa, Ethiopia
- Average pressure in September: 1012.3mbar
The month with the highest atmospheric pressure is December (1015.8mbar).
The month with the lowest atmospheric pressure is June (1010.7mbar).
Average wind speed in September
Mersa, Ethiopia
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is June (8.1km/h).
The calmest months (with the lowest average wind speed) are August and December (5.8km/h).
Average humidity in September
Mersa, Ethiopia
- Average humidity in September: 65%
The month with the highest relative humidity is August (72%).
The month with the lowest relative humidity is June (42%).
Average rainfall in September
Mersa, Ethiopia
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is August (193mm).
The driest month (with the least rainfall) is December (7mm).
Average rainfall days in September
Mersa, Ethiopia
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is August (28 days).
The month with the least rainy days is December (5.9 days).
Average daylight in September /
Average sunshine in September
Mersa, Ethiopia
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 30min).
Average sunshine days in September
Mersa, Ethiopia
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is December (24.1 days).
The month with the least sunshine days is August (1.4 days).
Average UV index in September
Mersa, Ethiopia
- Average UV index in September: 4
The months with the highest UV index are February, April, May, June, July and August (UV index 5).
The months with the lowest UV index are January, March, September, October, November and December (UV index 4).
Average cloud cover in September
Mersa, Ethiopia
- Average cloud cover in September: 16
The months with the most cloud cover are July and August (Cloud cover 28).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Mersa, Ethiopia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (10km).
The month with the lowest visibility is August (9km).
