September weather forecastOlga, Greece
September
Weather in September
September, the first month of the autumn in Olga, is also a moderately hot month, with temperature in the range of an average high of 27.2°C (81°F) and an average low of 21.3°C (70.3°F).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a hot 30.9°C (87.6°F) in August to a warm 27.2°C (81°F). An average low-temperature of 21.3°C (70.3°F) is expected in Olga during September.Heat index
For September, the heat index is estimated at 29°C (84.2°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In September, the average relative humidity is 64%.Rainfall
In September, the rain falls for 9.8 days. Throughout September, 33mm (1.3") of precipitation is accumulated. Throughout the year, there are 131 rainfall days, and 627mm (24.69") of precipitation is accumulated.Daylight
In September, the average length of the day in Olga is 12h and 26min.On the first day of September in Olga, Greece, sunrise is at 07:04 and sunset at 20:03. On the last day of the month, sunrise is at 07:29 and sunset at 19:19 EEST.
Sunshine
The average sunshine in September is 9.7h.UV index
In Olga, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Olga, Greece
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (13.2°C).
- Average low temperature in September: 21.3°C
The month with the highest average low temperature is August (23.9°C).
The coldest month (with the lowest average low temperature) is January (9.2°C).
Average pressure in September
Olga, Greece
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is July (1011.9mbar).
Average wind speed in September
Olga, Greece
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is January (15.2km/h).
The calmest months (with the lowest average wind speed) are May and June (10.7km/h).
Average humidity in September
Olga, Greece
- Average humidity in September: 64%
The months with the highest relative humidity are January and February (72%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Olga, Greece
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is January (117mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in September
Olga, Greece
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is January (17.1 days).
The month with the least rainy days is August (2.3 days).
Average daylight in September /
Average sunshine in September
Olga, Greece
- Average daylight in September: 12h and 24min
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: 9h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Olga, Greece
- Average sunshine days in September: 17.2 days
The months with the most sunshine days are July and August (27.2 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in September
Olga, Greece
- Average UV index in September: 6
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 3).
Average cloud cover in September
Olga, Greece
- Average cloud cover in September: 13
The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
Olga, 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).





