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 snowfall in September
- Average snowfall 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
September
Weather in September
Temperature
September's arrival signals a moderate reduction in the average high-temperature, easing from a tropical 30.3°C (86.5°F) in August to a moderately hot 26.7°C (80.1°F). Throughout September, a steady low-temperature average of 20.9°C (69.6°F) is noted.Humidity
The average relative humidity in September is 59%.Rainfall
In Rafina, during September, the rain falls for 7 days and regularly aggregates up to 16mm (0.63") of precipitation. In Rafina, during the entire year, the rain falls for 93.5 days and collects up to 308mm (12.13") of precipitation.Snowfall
In Rafina, snow does not fall in March through December.Sea temperature
In Rafina, the average seawater temperature in September is 24.1°C (75.4°F).Note: A swim in 24.1°C (75.4°F) waters can be refreshing, especially when factoring in a person's cold tolerance, sunshine, wind, and the overall temperature. As a point of reference, Olympic swimming events are held in 25°C (77°F) to 28°C (82.4°F) waters.
Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 06:54 and sunset at 19:53. On the last day of the month, sunrise is at 07:19 and sunset at 19:08 EEST.
Sunshine
In September, the average sunshine in Rafina is 10h.UV index
In Rafina, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Note! Reflective surfaces like sand and water heighten the UV radiation levels.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Rafina?
How warm is the water in September?
How many hours of daylight does Rafina have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Rafina have in September?
What is the UV index intensity in September?
Average temperature in September
Rafina, Greece
- Average high temperature in September: 26.7°C
The warmest months (with the highest average high temperature) are July and August (30.3°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in September: 20.9°C
The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is January (7.5°C).
Average pressure in September
Rafina, Greece
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011mbar).
Average wind speed in September
Rafina, Greece
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is August (17.1km/h).
The calmest month (with the lowest average wind speed) is May (11.8km/h).
Average humidity in September
Rafina, Greece
- Average humidity in September: 59%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
Rafina, Greece
- Average rainfall in September: 16mm
The wettest months (with the highest rainfall) are January and December (49mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in September
Rafina, Greece
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is December (12.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in September
Rafina, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (33mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Rafina, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Rafina, Greece
- Average sea temperature in September: 24.1°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 (15.1°C).
Average daylight in September /
Average sunshine in September
Rafina, 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 36min).
- Average sunshine in September: 10h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Rafina, Greece
- Average sunshine days in September: 21 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is January (15.9 days).
Average UV index in September
Rafina, Greece
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Rafina, Greece
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
Rafina, 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).
