Kwajalein
Marshall Islands
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Kwajalein, Marshall Islands

January, the same as December, in Kwajalein, Marshall Islands, is another tropical winter month, with average temperature ranging between max 30°C (86°F) and min 25°C (77°F).

Temperature

January through May and December, with an average high-temperature of 30°C (86°F), are the coldest months.

Rainfall

In January, in Kwajalein, the rain falls for 21 days. Throughout January, 164mm (6.5") of precipitation is accumulated. Throughout the year, in Kwajalein, there are 224 rainfall days, and 2605mm (102.6") of precipitation is accumulated.

Sea temperature

January through May and December, with an average sea temperature of 28°C (82.4°F), are months with the coldest seawater.
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In January, the average length of the day is 11.7h.

Sunshine

With an average of 21h of sunshine, January has the most sunshine of the year in Kwajalein.

UV index

In Kwajalein, the average daily maximum UV index is 11. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 11 interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 are the coldest months in Kwajalein?

The coldest months in Kwajalein, Marshall Islands, are January through May and December, with an average high-temperature of 30°C (86°F).

What is the temperature in January in Kwajalein?

The average high-temperature, in January, in Kwajalein, is 30°C (86°F), while the average low-temperature is 25°C (77°F).

How many days does it rain in January in Kwajalein?

In Kwajalein, in January, during 21 rainfall days, 164mm (6.5") of precipitation is typically accumulated.

When is the sea coldest in Kwajalein?

January through May and December, with an average sea temperature of 28°C (82.4°F), are months with the coldest seawater in Kwajalein, Marshall Islands.

What is the sea water temperature in January in Kwajalein?

In Kwajalein, the average seawater temperature in January is 28°C (82.4°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Kwajalein have in January?

The average length of the day in January in Kwajalein is 11.7h.

What month has the most sunshine in Kwajalein?

With an average of 21h of sunshine, January has the most sunshine of the year in Kwajalein.

How many hours of sunshine does Kwajalein have in January?

In January, the average sunshine in Kwajalein is 21h.

What is the UV index intensity in January in Kwajalein?

The average daily maximum UV index in January is 11. A UV Index of 11, and more, symbolizes an ultimate hazard to health from unprotected exposure to the UV radiation.
Average temperature in January - Kwajalein, Marshall Islands
  • Average high temperature in January: 30°C

Warmest months (with the highest average high temperature) are June, July, August, September, October and November (31°C).
Months with the lowest average high temperature are January, February, March, April, May and December (30°C).

  • Average low temperature in January: 25°C

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

Average rainfall in January - Kwajalein, Marshall Islands
  • Average rainfall in January: 164mm

The wettest month (with the highest rainfall) is October (282mm).
The driest month (with the lowest rainfall) is February (123mm).

Average rainfall days in January - Kwajalein, Marshall Islands
  • Average rainfall days in January: 21 days

The month with the highest number of rainy days is January (21 days).
The month with the lowest number of rainy days is June (16 days).

Average sea temperature in January - Kwajalein, Marshall Islands
  • Average sea temperature in January: 28°C

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

Average daylight in January / Average sunshine in January - Kwajalein, Marshall Islands
  • Average daylight in January: 11.7h

Months with the longest days are June and July (Average daylight: 12.6h).
The month with shortest days is December (Average daylight: 11.6h).

  • Average sunshine in January: 21h

The month with most sunshine is January (Average sunshine: 21h).
The month with least sunshine is June (Average sunshine: 16h).

Average UV index in January - Kwajalein, Marshall Islands
  • Average UV index in January: 11

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).