September weather forecast and climate
Wake Island, Wake Island, USA

The first month of the autumn, September, is still a hot month in Wake Island, Wake Island, with average temperature ranging between min 77.7°F (25.4°C) and max 88.2°F (31.2°C).

Temperature

The warmest months are July through September, with an average high-temperature of 88.2°F (31.2°C).

Rainfall

In Wake Island, Wake Island, during September, the rain falls for 19 days and regularly aggregates up to 5.07" (128.8mm) of precipitation. Throughout the year, in Wake Island, there are 230 rainfall days, and 35.69" (906.4mm) of precipitation is accumulated.

Ocean temperature

August through October, with an average ocean temperature of 84.2°F (29°C), are months with the warmest seawater.
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Wake Island, the average length of the day in September is 12.3h.

Sunshine

In Wake Island, Wake Island, the average sunshine in September is 8h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 12 in September interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the warmest month in Wake Island?

July through September, with an average high-temperature of 88.2°F (31.2°C), are warmest months.

What is the temperature in September in Wake Island?

In Wake Island, Wake Island, in September, the average high-temperature is 88.2°F (31.2°C), and the average low-temperature is 77.7°F (25.4°C).

How many days does it rain in September in Wake Island?

In Wake Island, in September, during 19 rainfall days, 5.07" (128.8mm) of precipitation is typically accumulated.

What months are the ocean warmest in Wake Island?

August through October, with an average ocean temperature of 84.2°F (29°C), are months with the warmest seawater in Wake Island, Wake Island.

How warm is the water in September in Wake Island?

In September, the average ocean temperature in Wake Island is 84.2°F (29°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Wake Island have in September?

The average length of the day in September in Wake Island, Wake Island, is 12.3h.

How many hours of sunshine does Wake Island have in September?

In Wake Island, the average sunshine in September is 8h.

What are the months with the highest UV index in Wake Island?

Months with the highest UV index in Wake Island, Wake Island, are March through September, with an average maximum UV index of 12.

What is the UV index reading in September in Wake Island?

In Wake Island, Wake Island, the average daily maximum UV index in September is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Wake Island, Wake Island, USA
  • Average high temperature in September: 31.2°C

The warmest months (with the highest average high temperature) are July, August and September (31.2°C).
The month with the lowest average high temperature is February (27.8°C).

  • Average low temperature in September: 25.4°C

The month with the highest average low temperature is September (25.4°C).
The coldest month (with the lowest average low temperature) is February (22.3°C).

Average rainfall in September - Wake Island, Wake Island, USA
  • Average rainfall in September: 128.8mm

The wettest month (with the highest rainfall) is August (156.5mm).
The driest month (with the least rainfall) is January (29.5mm).

Average rainfall days in September - Wake Island, Wake Island, USA
  • Average rainfall days in September: 19 days

The month with the highest number of rainy days is January (22 days).
Months with the least rainy days are April, May and June (17 days).

Average sea temperature in September - Wake Island, Wake Island, USA
  • Average sea temperature in September: 29°C

The best months for swimming (with the highest average sea temperature) are August, September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (26°C).

Average daylight in September / Average sunshine in September - Wake Island, Wake Island, USA
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.3h).
The month with the shortest days is December (Average daylight: 11h).

  • Average sunshine in September: 8h

Months with the most sunshine are May and June (Average sunshine: 10h).
Months with the least sunshine are November and December (Average sunshine: 7).

Average UV index in September - Wake Island, Wake Island, USA
  • Average UV index in September: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
Months with the lowest UV index are January, November and December (UV index 8).