September weather forecast
Enewetak, Marshall Islands

As the year heads into its last quarter, September in Enewetak brings fewer daylight hours and slightly cooler temperatures. Despite the decrease, the weather remains agreeably warm and inviting. September is graced with a balanced 19 sunshine hours, echoing July's count. A continued reduction in daylight hours to 12.2 coexists with a rise in rainfall, which increases to 273mm (10.75") this month from 236mm (9.29") in August. This combination of weather elements makes for an interesting blend of sun and rain, characteristic of Enewetak's tropical climate.

Temperature

The start of September marks an average high-temperature of a still tropical 31°C (87.8°F), hardly distinguishable from the conditions in August. In Enewetak, in September, the average low-temperature is a warm 25°C (77°F).

Rainfall

In Enewetak, during September, the rain falls for 19 days and regularly aggregates up to 273mm (10.75") of precipitation. Throughout the year, in Enewetak, there are 229 rainfall days, and 2238mm (88.11") of precipitation is accumulated.

Sea temperature

August through October, with an average sea temperature of 29.3°C (84.7°F), are months with the warmest seawater.
Note: A water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

In Enewetak, the average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 07:00 and sunset at 19:20. On the last day of the month, sunrise is at 06:59 and sunset at 19:01 +12.

Sunshine

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

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 12 during September translates into the following guidance:
Ensure every crucial precaution is taken. Individuals with light skin could experience burns in under 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. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Despite the cloudy weather, sunscreen with a sun protection factor of at least 30 should be liberally applied and reapplied, including after a swim or outdoor activity. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.