September weather forecast
Rethimno, Greece

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Dusk in the Venetian Rethimno harbor in Greece
Dusk in the Venetian Rethimno harbor in Greece

Weather in September

The first month of the autumn, September, is still a warm month in Rethimno, Greece, with an average temperature fluctuating between 27°C and 19°C.
An excellent water temperature of 25.4°C and only 1 rainfall days, with 19mm of accumulated rainfall, makes September a prime for swimming and other water activities.

Temperature

September's presence in Rethimno records an average high-temperature of a still moderately hot 27°C, closely mirroring August's climate. Rethimno throughout September, experiences an average nighttime temperature of 19°C.

Rainfall

In Rethimno, Greece, in September, it is raining for 1 days, with typically 19mm of accumulated precipitation. In Rethimno, during the entire year, the rain falls for 67 days and collects up to 664mm of precipitation.

Sea temperature

In Rethimno, in September, the average water temperature is 25.4°C.
Note: Surface water temperatures ranging from 25°C to 29°C are seen as ideal and highly pleasant for extended enjoyment in all water activities.

Daylight

The average length of the day in September is 12h and 24min.
On the first day of September in Rethimno, sunrise is at 06:54 and sunset at 19:50. On the last day of the month, sunrise is at 07:15 and sunset at 19:08 EEST.

Sunshine

In Rethimno, the average sunshine in September is 10h.

UV index

In Rethimno, Greece, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be attentive! The UV exposure is heightened with reflections from sand and water.
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FAQ

What is the average September temperature in Rethimno?

In September, the average high-temperature and low-temperature in Rethimno are 27°C and 19°C respectively.

How many days does it rain in September in Rethimno?

In Rethimno, during September, the rain falls for 1 days and regularly aggregates up to 19mm of precipitation.

What is the water temperature in September in Rethimno?

In Rethimno, Greece, in September, the average water temperature is 25.4°C. Water temperature between 25°C and 29°C is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Rethimno have in September?

In Rethimno, the average day length in September is 12h and 24min.

When is the sunrise / sunset in September in Rethimno?

On the first day of September, sunrise is at 06:54 and sunset at 19:50. On the last day of the month, sunrise is at 07:15 and sunset at 19:08 EEST.

How many hours of sunshine does Rethimno have in September?

In Rethimno, the average sunshine duration in September is 10h.

How high is the UV index in September in Rethimno?

In Rethimno, Greece, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index

Average temperature in September
Rethimno, Greece

Average temperature in September - Rethimno, Greece
  • Average high temperature in September: 27°C

The warmest month (with the highest average high temperature) is July (30°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in September: 19°C

The months with the highest average low temperature are July and August (21°C).
The coldest months (with the lowest average low temperature) are January and February (8°C).

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Average rainfall in September
Rethimno, Greece

Average rainfall in September - Rethimno, Greece
  • Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is January (142mm).
The driest months (with the least rainfall) are July and August (1mm).

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Average rainfall days in September
Rethimno, Greece

Average rainfall days in September - Rethimno, Greece
  • Average rainfall days in September: 1 days

The month with the highest number of rainy days is December (13 days).
The months with the least rainy days are July and August (0 days).

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Average sea temperature in September
Rethimno, Greece

Average sea temperature in September - Rethimno, Greece
  • Average sea temperature in September: 25.4°C

The best month for swimming (with the highest average sea temperature) is August (25.9°C).
The coldest month (with the lowest average sea temperature) is February (16.1°C).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 10h

The months with the most sunshine are June, July and August (Average sunshine: 12h).
The months with the least sunshine are January and December (Average sunshine: 4h).

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Average UV index in September
Rethimno, Greece

Average UV index in September - Rethimno, Greece
  • Average UV index in September: 7

The months with the highest UV index are June and July (UV index 10).
The months with the lowest UV index are January and December (UV index 2).

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Rethimno, Greece

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