September weather forecastNaxos, Greece
September
Weather in September
September ushers in a gradual transition from hot summer to moderate autumn. The temperatures begin to decrease, making the heat more manageable compared to the peak summer months. The decrease in rainfall is negligible, from 1mm (0.04") to 3mm (0.12") over 2.7 days, maintaining the dry conditions. The relatively warm sea provides an excellent opportunity for late-season swimming, with the beaches being less crowded post the summer rush. The blend of warmth and breeze make boat trips and open-air dining delightful.Temperature
With the advent of September, Naxos's high-temperatures adjust to a still moderately hot 24.2°C (75.6°F), closely aligning with the preceding month. September nights document an average temperature reading of 22.8°C (73°F).Humidity
In Naxos, the average relative humidity in September is 73%.Rainfall
In Naxos, Greece, during September, the rain falls for 2.7 days and regularly aggregates up to 3mm (0.12") of precipitation. In Naxos, during the entire year, the rain falls for 68.8 days and collects up to 117mm (4.61") of precipitation.Sea temperature
In September, the average sea temperature in Naxos, Greece, is 23.7°C (74.7°F).Note: Swimming in 23.7°C (74.7°F) can be enjoyable or not, depending on how you feel about the cold and conditions such as sunshine, wind, and the day's temperature. FYI: Olympic standards dictate waters of 25°C (77°F) to 28°C (82.4°F).
Daylight
The average length of the day in September in Naxos is 12h and 25min.On the first day of the month, sunrise is at 06:49 and sunset at 19:47. On the last day of September, sunrise is at 07:13 and sunset at 19:03 EEST.
Sunshine
In September, the average sunshine is 10.8h.UV index
The average daily maximum UV index in September in Naxos is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 6 in September translates into this advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Naxos, 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 (24.6°C).
The coldest month (with the lowest average low temperature) is January (12°C).
Average pressure in September
Naxos, Greece
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is December (1017.7mbar).
The month with the lowest atmospheric pressure is July (1009.1mbar).
Average wind speed in September
Naxos, Greece
- Average wind speed in September: 21.6km/h
The windiest month (with the highest average wind speed) is January (28.5km/h).
The calmest month (with the lowest average wind speed) is May (17.5km/h).
Average humidity in September
Naxos, Greece
- Average humidity in September: 73%
The month with the highest relative humidity is August (75%).
The months with the lowest relative humidity are January and December (71%).
Average rainfall in September
Naxos, Greece
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is January (22mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in September
Naxos, Greece
- Average rainfall days in September: 2.7 days
The month with the highest number of rainy days is January (11.3 days).
The month with the least rainy days is August (0.5 days).
Average sea temperature in September
Naxos, Greece
- Average sea temperature in September: 23.7°C
The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (15.9°C).
Average daylight in September /
Average sunshine in September
Naxos, 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 42min).
- Average sunshine in September: 10h and 48min
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 48min).
Average sunshine days in September
Naxos, Greece
- Average sunshine days in September: 26.5 days
The months with the most sunshine days are July and August (29.8 days).
The month with the least sunshine days is February (16.1 days).
Average UV index in September
Naxos, 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
Naxos, Greece
- Average cloud cover in September: 9
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 3).
Average visibility in September
Naxos, 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).
