September weather forecast and climate
Midway Atoll, Midway Island, USA

What are the warmest months in Midway Atoll?

August and September, with an average high-temperature of 84°F (28.9°C), are warmest months.

What is the temperature in September in Midway Atoll?

In Midway Atoll, Midway Island, in September, the average high-temperature is 84°F (28.9°C), and the average low-temperature is 75°F (23.9°C).

How many days does it rain in September in Midway Atoll?

In Midway Atoll, in September, it is raining for 15 days, with typically 3.5" (88.9mm) of accumulated precipitation.

What are the months with the warmest sea water in Midway Atoll?

August and September, with an average sea temperature of 80.6°F (27°C), are months with the warmest seawater. 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.

What is the water temperature in September in Midway Atoll?

The average seawater temperature, in September, is 80.6°F (27°C). 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.
Average temperature in September - Midway Atoll, Midway Island, USA
  • Average high temperature in September: 28.9°C

Warmest months (with the highest average high temperature) are August and September (28.9°C).
Months with the lowest average high temperature are January and February (21.1°C).

  • Average low temperature in September: 23.9°C

Months with the highest average low temperature are July, August and September (23.9°C).
Coldest months (with the lowest average low temperature) are January and February (16.7°C).

Average rainfall in September - Midway Atoll, Midway Island, USA
  • Average rainfall in September: 88.9mm

The wettest month (with the highest rainfall) is January (127mm).
The driest month (with the lowest rainfall) is June (55.9mm).

Average rainfall days in September - Midway Atoll, Midway Island, USA
  • Average rainfall days in September: 15 days

Months with the highest number of rainy days are January and December (16 days).
Months with the lowest number of rainy days are May and June (9 days).

Average sea temperature in September - Midway Atoll, Midway Island, USA
  • Average sea temperature in September: 27°C

Best months for swimming (with the highest average sea temperature) are August and September (27°C).
Coldest months (with the lowest average sea temperature) are January, February and March (20°C).

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

The month with the longest days is June (Average daylight: 13.9h).
The month with shortest days is December (Average daylight: 10.4h).

  • Average sunshine in September: 18h

Months with most sunshine are July, September and October (Average sunshine: 18h).
Months with least sunshine are January and February (Average sunshine: 14).

Average UV index in September - Midway Atoll, Midway Island, USA
  • Average UV index in September: 10

Months with the highest UV index are June, July and August (UV index 11).
Months with the lowest UV index are January and December (UV index 5).

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