September weather forecast
Kosrae, Micronesia

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Weather in September

September brings another drop in rainfall, registering 288mm (11.34") as it maintains the steady descent from July's peak. The month continues with the tropical season; the temperatures, the prolong hours of sunshine, and the prominent UV index offers a vibrant outdoor experience. Simultaneously, a slight decline in daylight hours is noticeable compared to the previous months. The consistency in sea temperature ensures September remains an excellent month for marine recreation.

Temperature

January through December are the warmest months in Kosrae, with an average high-temperature of 31°C (87.8°F). Lowest temperatures in Kosrae, Micronesia, are observed in January through December, averaging a high-temperature of 31°C (87.8°F).

Rainfall

In Kosrae, in September, it is raining for 19 days, with typically 288mm (11.34") of accumulated precipitation. In Kosrae, during the entire year, the rain falls for 233 days and collects up to 3180mm (125.2") of precipitation.

Sea temperature

The months with the warmest seawater in Kosrae are January through December, with an average sea temperature of 29°C (84.2°F). January through December, with an average sea temperature of 29°C (84.2°F), are months with the coldest seawater.
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is perceived as agreeably warm, making all water activities enjoyable without the risk of discomfort over lengthy durations.

Daylight

In September, the average length of the day in Kosrae is 12h and 9min.
On the first day of September, sunrise is at 06:01 and sunset at 18:14. On the last day of the month, sunrise is at 05:55 and sunset at 18:00 +11.

Sunshine

In September, the average sunshine in Kosrae is 19h.

UV index

The months with the highest UV index are January through November, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 12 in September translates into the following instructions:
Ensure every crucial precaution is taken. Individuals with light skin could experience burns in under 5 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Sunscreen with a sun protection factor of no less than 30 should be used liberally and reapplied frequently on overcast days, including after every swim or outdoor activity. Note! The Sun's UV radiation gets intensified with the reflection from sand and water.
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Frequently asked questions

What is the hottest time of year in Kosrae?

The months of January through December bring the highest temperatures, averaging a high of 31°C (87.8°F).

What month is the coldest in Kosrae?

January through December are the coldest months in Kosrae, Micronesia, with an average high-temperature of 31°C (87.8°F).

How hot does it get in Kosrae in September?

During September, Kosrae experiences an average high-temperature of 31°C (87.8°F) and a low-temperature of 24°C (75.2°F).

How much does it rain in Kosrae in September?

In Kosrae, Micronesia, during September, the rain falls for 19 days and regularly aggregates up to 288mm (11.34") of precipitation.

What months are the sea warmest in Kosrae?

The months with the warmest seawater are January through December, with an average sea temperature of 29°C (84.2°F).

What are the months with the coldest sea water in Kosrae?

January through December, with an average sea temperature of 29°C (84.2°F), are months with the coldest seawater.

What is the water temperature in September in Kosrae?

In Kosrae, the average seawater temperature in September is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Kosrae have in September?

The average day length in September in Kosrae is 12h and 9min.

When are sunrise and sunset in September in Kosrae?

In September, on the first day of the month, sunrise is at 06:01 and sunset at 18:14. On the last day of the month, in Kosrae, Micronesia, sunrise is at 05:55 and sunset at 18:00 +11.

How many hours of sunshine does Kosrae have in September?

In Kosrae, the average sunshine duration in September is 19h.

When is the highest UV index in Kosrae?

January through November, with an average maximum UV index of 12, are months with the highest UV index in Kosrae, Micronesia.

How high is the UV index in September in Kosrae?

The average daily maximum UV index in September in Kosrae, Micronesia, is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from exposure to the Sun's UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Kosrae, Micronesia

Average temperature in September - Kosrae, Micronesia
  • Average high temperature in September: 31°C

The warmest months (with the highest average high temperature) are January, February, March, April, May, June, July, August, September, October, November and December (31°C).
The months with the lowest average high temperature are January, February, March, April, May, June, July, August, September, October, November and December (31°C).

  • Average low temperature in September: 24°C

The months with the highest average low temperature are January, February, March, April, May and December (25°C).
The coldest months (with the lowest average low temperature) are June, July, August, September, October and November (24°C).

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Average rainfall in September
Kosrae, Micronesia

Average rainfall in September - Kosrae, Micronesia
  • Average rainfall in September: 288mm

The wettest month (with the highest rainfall) is July (319mm).
The driest month (with the least rainfall) is February (182mm).

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Average rainfall days in September
Kosrae, Micronesia

Average rainfall days in September - Kosrae, Micronesia
  • Average rainfall days in September: 19 days

The month with the highest number of rainy days is August (21 days).
The months with the least rainy days are May and June (18 days).

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Average sea temperature in September
Kosrae, Micronesia

Average sea temperature in September - Kosrae, Micronesia
  • Average sea temperature in September: 29°C

The best months for swimming (with the highest average sea temperature) are January, February, March, April, May, June, July, August, September, October, November and December (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March, April, May, June, July, August, September, October, November and December (29°C).

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Average daylight in September /
Average sunshine in September
Kosrae, Micronesia

Average daylight in September / Average sunshine in September - Kosrae, Micronesia
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).

  • Average sunshine in September: 19h

The month with the most sunshine is August (Average sunshine: 21h).
The months with the least sunshine are May and June (Average sunshine: 18h).

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Average UV index in September
Kosrae, Micronesia

Average UV index in September - Kosrae, Micronesia
  • Average UV index in September: 12

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 12).
The month with the lowest UV index is December (UV index 11).

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Kosrae, Micronesia

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