September weather forecastEretria, Greece
September
Weather in September
September, the first month of the autumn in Eretria, is also a moderately hot month, with an average temperature varying between 19.6°C (67.3°F) and 25.7°C (78.3°F).Temperature
September is characterized by a slight reduction in average high-temperature, easing from a warm 29°C (84.2°F) in August to a still moderately hot 25.7°C (78.3°F). Eretria's temperature drops to an average low of 19.6°C (67.3°F) during the nights of September.Humidity
In September, the average relative humidity is 63%.Rainfall
In Eretria, in September, during 8.9 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, there are 127.1 rainfall days, and 492mm (19.37") of precipitation is accumulated.Snowfall
In Eretria, snow does not fall in April through November.Sea temperature
In Eretria, in September, the average water temperature is 24.8°C (76.6°F).Note: For those not fond of cold temperatures, taking a swim at 24.8°C (76.6°F) may require consideration of the sunshine, wind, and ambient temperature. While wetsuits are not mandatory, they can enhance the experience.
Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 06:54 and sunset at 19:54. On the last day of September, sunrise is at 07:20 and sunset at 19:09 EEST.
Sunshine
The average sunshine in September is 9.6h.UV index
In Eretria, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Caution! The Sun's UV rays become stronger due to reflections from water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Eretria, Greece
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is January (11.3°C).
- Average low temperature in September: 19.6°C
The month with the highest average low temperature is August (22.6°C).
The coldest month (with the lowest average low temperature) is January (6.3°C).
Average pressure in September
Eretria, Greece
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1011.3mbar).
Average wind speed in September
Eretria, Greece
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is August (14km/h).
The calmest months (with the lowest average wind speed) are May and June (10.7km/h).
Average humidity in September
Eretria, Greece
- Average humidity in September: 63%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is July (56%).
Average rainfall in September
Eretria, Greece
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (69mm).
The driest month (with the least rainfall) is August (6mm).
Average rainfall days in September
Eretria, Greece
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is January (14.8 days).
The month with the least rainy days is August (2.9 days).
Average snowfall in September
Eretria, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (73mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Eretria, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Eretria, Greece
- Average sea temperature in September: 24.8°C
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (14.9°C).
Average daylight in September /
Average sunshine in September
Eretria, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 36min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Eretria, Greece
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (11.5 days).
Average UV index in September
Eretria, Greece
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Eretria, Greece
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Eretria, Greece
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
