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
September
Weather in September
An excellent water temperature of 25°C (77°F) and only 1.4 rainfall days, with 1mm (0.04") of accumulated rainfall, makes September a prime for swimming and other water activities.
Temperature
With the onset of September, a modest change to a still moderately hot 27°C (80.6°F) from August's 29.4°C (84.9°F) is noted in high-temperature. During September, Kalathos's nights hold steady with an average temperature of 24.1°C (75.4°F), barely dropping from the daytime highs.Heat index
Throughout September, the heat index is appraised at 29°C (84.2°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Note that heat index values are valued for light wind and location in the shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In September, the average relative humidity in Kalathos is 66%.Rainfall
Months with rainfall are January through July, September through December. September is the first month it rains in Kalathos. Throughout September, in the average 1.4 rainfall days, it receives 1mm (0.04") of precipitation. In Kalathos, during the entire year, the rain falls for 49.8 days and collects up to 95mm (3.74") of precipitation.Sea temperature
The months with the warmest seawater in Kalathos are August and September, with an average sea temperature of 25°C (77°F).Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.
Daylight
In Kalathos, the average length of the day in September is 12h and 25min.On the first day of September in Kalathos, sunrise is at 06:39 and sunset at 19:35. On the last day of the month, sunrise is at 07:02 and sunset at 18:52 EEST.
Sunshine
In September, the average sunshine is 11.5h.UV index
The average daily maximum UV index in September in Kalathos is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Shield from overexposure. Defense against sun-related harm is required. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Kalathos in September?
What is the average humidity in September in Kalathos?
When does it start to rain in Kalathos?
What months are the sea warmest in Kalathos?
What is the water temperature in September in Kalathos?
How many hours of daylight does Kalathos have in September?
When is the sunrise / sunset in September in Kalathos?
How many hours of sunshine does Kalathos have in September?
How high is the UV index in September in Kalathos?
Average temperature in September
Kalathos, Greece
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (14.9°C).
- Average low temperature in September: 24.1°C
The month with the highest average low temperature is August (25.8°C).
The coldest month (with the lowest average low temperature) is January (12.6°C).
Average pressure in September
Kalathos, Greece
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is December (1017.3mbar).
The month with the lowest atmospheric pressure is July (1007mbar).
Average wind speed in September
Kalathos, Greece
- Average wind speed in September: 17.1km/h
The windiest month (with the highest average wind speed) is February (22.6km/h).
The calmest month (with the lowest average wind speed) is May (15km/h).
Average humidity in September
Kalathos, Greece
- Average humidity in September: 66%
The months with the highest relative humidity are May and June (70%).
The month with the lowest relative humidity is October (65%).
Average rainfall in September
Kalathos, Greece
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is December (21mm).
The driest month (with the least rainfall) is August (0mm).
Average rainfall days in September
Kalathos, Greece
- Average rainfall days in September: 1.4 days
The month with the highest number of rainy days is December (8.9 days).
The month with the least rainy days is August (0.3 days).
Average sea temperature in September
Kalathos, Greece
- Average sea temperature in September: 25°C
The best months for swimming (with the highest average sea temperature) are August and September (25°C).
The coldest months (with the lowest average sea temperature) are February and March (16°C).
Average daylight in September /
Average sunshine in September
Kalathos, Greece
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Kalathos, Greece
- Average sunshine days in September: 27.9 days
The month with the most sunshine days is July (30.8 days).
The month with the least sunshine days is February (17.7 days).
Average UV index in September
Kalathos, Greece
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in September
Kalathos, Greece
- Average cloud cover in September: 6
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 2).
Average visibility in September
Kalathos, 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).
