September weather forecast
Eretria, Greece

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Weather in September

The first month of the autumn, September, is still a warm month in Eretria, Greece, with temperature in the range of an average high of 25.7°C (78.3°F) and an average low of 19.6°C (67.3°F).

Temperature

The average high-temperature shows a slight dip in September, from August's 29°C (84.2°F) to a still moderately hot 25.7°C (78.3°F). During the month of September, the temperature in Eretria falls to an average of 19.6°C (67.3°F).

Humidity

In Eretria, the average relative humidity in September is 63%.

Rainfall

In Eretria, during September, the rain falls for 8.9 days and regularly aggregates up to 26mm (1.02") of precipitation. In Eretria, during the entire year, the rain falls for 127.1 days and collects up to 492mm (19.37") of precipitation.

Snowfall

April through November are months without snowfall.

Sea temperature

In Eretria, Greece, the average seawater temperature in September is 24.8°C (76.6°F).
Note: The cold tolerance of an individual, along with sunshine, wind, and the temperature of the environment, affects the enjoyment of swimming in 24.8°C (76.6°F) waters. (Olympic swimmers participate in waters ranging from 25°C (77°F) to 28°C (82.4°F).)

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, in Eretria, 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 estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Make use of precautions - It is urged to ward off sun damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Warning! The Sun's UV rays intensify with reflections from sand and water.
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Frequently asked questions

What is the average September temperature in Eretria?

In Eretria, in September, the average high-temperature is 25.7°C (78.3°F), and the average low-temperature is 19.6°C (67.3°F). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is computed to be 31°C (87.8°F).

What is the average humidity in September in Eretria?

The average relative humidity in September in Eretria, Greece, is 63%.

How much does it rain in Eretria in September?

In Eretria, during September, the rain falls for 8.9 days and regularly aggregates up to 26mm (1.02") of precipitation.

When it does not snow in Eretria?

April through November are months without snowfall in Eretria.

What is the sea temperature in September in Eretria?

In September, the average sea temperature in Eretria, Greece, is 24.8°C (76.6°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 24.8°C (76.6°F).

What is the average length of the day in September in Eretria?

In Eretria, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Eretria?

In September, on the first day of the month, sunrise is at 06:54 and sunset at 19:54. On the last day of the month, sunrise is at 07:20 and sunset at 19:09 EEST.

How long on average sun shines in September in Eretria?

The average sunshine duration in September is 9.6h.

What is the UV index intensity in September in Eretria?

The average daily maximum UV index in September in Eretria is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Eretria, Greece

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).

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Average pressure in September
Eretria, Greece

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).

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Average wind speed in September
Eretria, Greece

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).

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Average humidity in September
Eretria, Greece

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%).

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Average rainfall in September
Eretria, Greece

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).

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Average rainfall days in September
Eretria, Greece

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).

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Average snowfall in September
Eretria, Greece

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).

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Average snowfall days in September
Eretria, Greece

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).

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Average sea temperature in September
Eretria, Greece

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).

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Average daylight in September /
Average sunshine in September
Eretria, Greece

Average daylight in September / Average sunshine in September - Eretria, Greece
  • Average daylight in September: 12h and 2min

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 4min

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).

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Average sunshine days in September
Eretria, Greece

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).

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Average UV index in September
Eretria, Greece

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).

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Average cloud cover in September
Eretria, Greece

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).

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Average visibility in September
Eretria, Greece

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).

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Eretria, Greece

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