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 sea temperature 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
Galissas starts September with an average high-temperature of a still moderately hot 24.2°C (75.6°F), a minor shift from August's 26.1°C (79°F). Galissas's nocturnal readings in September exhibit minimal variation from the daytime temperatures, averaging at a pleasant 22.8°C (73°F).Humidity
In Galissas, the average relative humidity in September is 73%.Rainfall
In September, the rain falls for 4.4 days. Throughout September, 9mm (0.35") of precipitation is accumulated. In Galissas, during the entire year, the rain falls for 93 days and collects up to 255mm (10.04") of precipitation.Sea temperature
In Galissas, the average seawater temperature in September is 24.3°C (75.7°F).Note: For someone sensitive to cold, swimming in 24.3°C (75.7°F) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 25°C (77°F) and 28°C (82.4°F).)
Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 06:51 and sunset at 19:49. On the last day of September, in Galissas, sunrise is at 07:15 and sunset at 19:05 EEST.
Sunshine
In September, the average sunshine is 10.7h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 6 in September transforms into this advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Watch out! Sand and water enhance the UV exposure you receive.
Frequently asked questions
What is the temperature in September in Galissas?
What is the average humidity in September in Galissas?
How much does it rain in Galissas in September?
What is the water temperature in September in Galissas?
How many hours of daylight does Galissas have in September?
When are sunrise and sunset in September in Galissas?
How many hours of sunshine does Galissas have in September?
What is the UV index reading in September in Galissas?
Average temperature in September
Galissas, Greece
- Average high temperature in September: 24.2°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (13.8°C).
- Average low temperature in September: 22.8°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (11.9°C).
Average pressure in September
Galissas, Greece
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is December (1017.8mbar).
The month with the lowest atmospheric pressure is July (1009.2mbar).
Average wind speed in September
Galissas, Greece
- Average wind speed in September: 24.3km/h
The windiest month (with the highest average wind speed) is January (30km/h).
The calmest month (with the lowest average wind speed) is May (18.8km/h).
Average humidity in September
Galissas, Greece
- Average humidity in September: 73%
The month with the highest relative humidity is August (76%).
The months with the lowest relative humidity are January and December (71%).
Average rainfall in September
Galissas, Greece
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is January (53mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in September
Galissas, Greece
- Average rainfall days in September: 4.4 days
The month with the highest number of rainy days is January (14.9 days).
The month with the least rainy days is August (0.8 days).
Average sea temperature in September
Galissas, Greece
- Average sea temperature in September: 24.3°C
The best month for swimming (with the highest average sea temperature) is August (25.8°C).
The coldest month (with the lowest average sea temperature) is February (15.6°C).
Average daylight in September /
Average sunshine in September
Galissas, Greece
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Galissas, Greece
- Average sunshine days in September: 24.2 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is January (12.4 days).
Average UV index in September
Galissas, Greece
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Galissas, Greece
- Average cloud cover in September: 10
The month with the most cloud cover is January (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 3).
Average visibility in September
Galissas, Greece
- 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).
Galissas, Greece
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