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

December weather forecast and climate
Kwajalein, Marshall Islands

The first month of the winter, December, is also a hot month in Kwajalein, Marshall Islands, with average temperature fluctuating between 30°C (86°F) and 25°C (77°F).

Temperature

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

Rainfall

In Kwajalein, in December, it is raining for 20 days, with typically 211mm (8.3") of accumulated precipitation. In Kwajalein, during the entire year, the rain falls for 224 days and collects up to 2605mm (102.6") of precipitation.

Sea temperature

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

December has the shortest days of the year in Kwajalein, with an average of 11.6h of daylight.

Sunshine

The average sunshine in Kwajalein is 20h.

UV index

The month with the lowest UV index in Kwajalein is December, with an average maximum UV index of 10. A UV Index estimate of 8 to 10 represents a very high health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
The daily maximum UV index of 10 interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. 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?

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

What is the temperature in December in Kwajalein?

In December, in Kwajalein, the average high-temperature is 30°C (86°F), and the average low-temperature is 25°C (77°F).

How much does it rain in Kwajalein in December?

In Kwajalein, during December, the rain falls for 20 days and regularly aggregates up to 211mm (8.3") of precipitation.

What months are the sea coldest in Kwajalein?

Through, May and December, with an average sea temperature of 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 warm is the water in December in Kwajalein?

In December, the average sea temperature 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.

What is the month with the shortest days in Kwajalein?

The month with the shortest days is December, with an average of 11.6h of daylight.

How many hours of daylight does Kwajalein have in December?

In December, the average length of the day is 11.6h.

How many hours of sunshine does Kwajalein have in December?

The average sunshine in December is 20h.

When is the lowest UV index in Kwajalein?

December is the month with the lowest UV index, with an average maximum UV index of 10.

What is the UV index intensity in December in Kwajalein?

In Kwajalein, Marshall Islands, the average daily maximum UV index in December is 10. A UV Index estimate of 8 to 10 represents a very high health risk from unprotected exposure to the UV radiation.
Average temperature in December - Kwajalein, Marshall Islands
  • Average high temperature in December: 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 December: 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 December - Kwajalein, Marshall Islands
  • Average rainfall in December: 211mm

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

Average rainfall days in December - Kwajalein, Marshall Islands
  • Average rainfall days in December: 20 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 December - Kwajalein, Marshall Islands
  • Average sea temperature in December: 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 December / Average sunshine in December - Kwajalein, Marshall Islands
  • Average daylight in December: 11.6h

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 December: 20h

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

Average UV index in December - Kwajalein, Marshall Islands
  • Average UV index in December: 10

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).