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
In Kolonia, Micronesia, the average high-temperature in September remains the same as in August - a still moderately hot 29.1°C (84.4°F). In September, the average low-temperature is 27.8°C (82°F).Heat index
The average heat index in September is calculated to be a tropical 34°C (93.2°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, differences in body mass, height, and shape, wind, and pregnancy affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
August through October, with an average relative humidity of 74%, are the least humid months in Kolonia.Rainfall
In Kolonia, in September, it is raining for 25.1 days, with typically 189mm (7.44") of accumulated precipitation. Throughout the year, in Kolonia, Micronesia, there are 313.2 rainfall days, and 2280mm (89.76") of precipitation is accumulated.Sea temperature
In Kolonia, the average water temperature is 29.4°C (84.9°F).Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Daylight
The average length of the day in September in Kolonia is 12h and 10min.On the first day of the month, sunrise is at 06:19 and sunset at 18:34. On the last day of September, in Kolonia, Micronesia, sunrise is at 06:15 and sunset at 18:19 +11.
Sunshine
In September, the average sunshine is 7.9h.UV index
January through October and December, with an average maximum UV index of 7, are months with the highest UV index in Kolonia. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
FAQ
What is the temperature in September in Kolonia?
What is the least humid month in Kolonia?
What is the average humidity in September in Kolonia?
How much does it rain in Kolonia in September?
What is the water temperature in September in Kolonia?
What is the average length of the day in September in Kolonia?
When is the sunrise / sunset in September in Kolonia?
How long on average sun shines in September in Kolonia?
What is the month with the highest UV index in Kolonia?
What is the UV index intensity in September in Kolonia?
Average temperature in September
Kolonia, Micronesia
- Average high temperature in September: 29.1°C
The warmest month (with the highest average high temperature) is October (29.2°C).
The month with the lowest average high temperature is February (28.3°C).
- Average low temperature in September: 27.8°C
The months with the highest average low temperature are October, November and December (28.1°C).
The coldest month (with the lowest average low temperature) is March (27.5°C).
Average pressure in September
Kolonia, Micronesia
- Average pressure in September: 1009.3mbar
The month with the highest atmospheric pressure is May (1009.6mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Kolonia, Micronesia
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is February (27.8km/h).
The calmest month (with the lowest average wind speed) is August (13.1km/h).
Average humidity in September
Kolonia, Micronesia
- Average humidity in September: 74%
The months with the highest relative humidity are January, February, March, April and May (78%).
The months with the lowest relative humidity are August, September and October (74%).
Average rainfall in September
Kolonia, Micronesia
- Average rainfall in September: 189mm
The wettest month (with the highest rainfall) is May (249mm).
The driest month (with the least rainfall) is February (130mm).
Average rainfall days in September
Kolonia, Micronesia
- Average rainfall days in September: 25.1 days
The month with the highest number of rainy days is May (28 days).
The month with the least rainy days is February (22.8 days).
Average sea temperature in September
Kolonia, Micronesia
- Average sea temperature in September: 29.4°C
The best month for swimming (with the highest average sea temperature) is November (29.8°C).
The coldest months (with the lowest average sea temperature) are February and March (28.8°C).
Average daylight in September /
Average sunshine in September
Kolonia, Micronesia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 7h and 5min
The months with the most sunshine are August and October (Average sunshine: 8h and 0min).
The months with the least sunshine are January and March (Average sunshine: 7h and 18min).
Average sunshine days in September
Kolonia, Micronesia
- Average sunshine days in September: 4 days
The month with the most sunshine days is October (4.5 days).
The month with the least sunshine days is November (1 days).
Average UV index in September
Kolonia, Micronesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 7).
The month with the lowest UV index is November (UV index 6).
Average cloud cover in September
Kolonia, Micronesia
- Average cloud cover in September: 45
The months with the most cloud cover are April and May (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 44).
Average visibility in September
Kolonia, Micronesia
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, June, October and December (10km).
The months with the lowest visibility are May, July, August, September and November (9km).
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