Yap
Micronesia
Long-term weather forecast
Long-term weather forecast
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September weather forecast and Climate
Yap, Micronesia

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  • The average high temperature in September: 30.9°C

The warmest month (with the highest average high temperature) is April (31.2°C).
The month with the lowest average high temperature is January (30.1°C).

  • The average low temperature in September: 23.5°C

The month with the highest average low temperature is April (24.1°C).
Coldest months (with the lowest average low temperature) are July and August (23.4°C).

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  • The average humidity in September: 84%

Months with the highest relative humidity are July, August, September and October (84%).
The month with the lowest relative humidity is April (79%).

  • The average rainfall in September: 343.2mm

The wettest month (with the highest rainfall) is August (386.1mm).
The driest month (with the lowest rainfall) is April (146.3mm).

  • The average rainfall days in September: 19.3 days

The month with the highest number of rainy days is July (21.2 days).
The month with the lowest number of rainy days is April (12.6 days).

  • The average sea temperature in September: 29°C

Best months for swimming (with the highest average sea temperature) are May, June, July, August, September, October, November and December (29°C).
Coldest months (with the lowest average sea temperature) are January, February, March and April (28°C).

  • The average daylight in September: 12h

Months with the longest days are May, June and July (Average daylight: 13h).
Months with shortest days are January, February, March, April, August, September, October, November and December (Average daylight: 12h).

  • The average sunshine in September: 6h

The month with most sunshine is April (Average sunshine: 8.5h).
The month with least sunshine is October (Average sunshine: 5.5h).

  • The average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).

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