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

December, the first month of the winter, in Midway Atoll, is also an agreeable month, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 64.9°F (18.3°C).

Temperature

In Midway Atoll, Midway Island, the average high-temperature in December is almost the same as in November - a pleasant 73°F (22.8°C). The average low-temperature, in December, is 64.9°F (18.3°C).

Rainfall

In Midway Atoll, during December, the rain falls for 16 days and regularly aggregates up to 4.1" (104.1mm) of precipitation. In Midway Atoll, during the entire year, the rain falls for 160 days and collects up to 41.3" (1048.9mm) of precipitation.

Ocean temperature

In Midway Atoll, Midway Island, in December, the average water temperature is 71.6°F (22°C).
Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 71.6°F (22°C).

Daylight

With an average of 10.4h of daylight, December has the shortest days of the year in Midway Atoll.

Sunshine

In December, the average sunshine is 15h.

UV index

Months with the lowest UV index in Midway Atoll are January and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in December in Midway Atoll?

In Midway Atoll, in December, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 64.9°F (18.3°C).

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

In Midway Atoll, Midway Island, during December, the rain falls for 16 days and regularly aggregates up to 4.1" (104.1mm) of precipitation.

What is the ocean temperature in December in Midway Atoll?

In December, the average ocean temperature in Midway Atoll, Midway Island, is 71.6°F (22°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 71.6°F (22°C) water.

What is the month with the shortest days in Midway Atoll?

The month with the shortest days in Midway Atoll, Midway Island, is December, with an average of 10.4h of daylight.

How many hours of daylight does Midway Atoll have in December?

In Midway Atoll, Midway Island, the average length of the day in December is 10.4h.

How long on average sun shines in December in Midway Atoll?

In Midway Atoll, the average sunshine in December is 15h.

When is the lowest UV index in Midway Atoll?

Months with the lowest UV index in Midway Atoll are January and December, with an average maximum UV index of 5.

What is the UV index intensity in December in Midway Atoll?

The average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in December - Midway Atoll, Midway Island, USA
  • Average high temperature in December: 73°F

The warmest months (with the highest average high temperature) are August and September (84°F).
Months with the lowest average high temperature are January and February (70°F).

  • Average low temperature in December: 65°F

Months with the highest average low temperature are July, August and September (75°F).
The coldest months (with the lowest average low temperature) are January and February (62°F).

Average rainfall in December - Midway Atoll, Midway Island, USA
  • Average rainfall in December: 4.1"

The wettest month (with the highest rainfall) is January (5").
The driest month (with the least rainfall) is June (2.2").

Average rainfall days in December - Midway Atoll, Midway Island, USA
  • Average rainfall days in December: 16 days

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

Average sea temperature in December - Midway Atoll, Midway Island, USA
  • Average sea temperature in December: 72°F

The best months for swimming (with the highest average sea temperature) are August and September (81°F).
The coldest months (with the lowest average sea temperature) are January, February and March (68°F).

Average daylight in December / Average sunshine in December - Midway Atoll, Midway Island, USA
  • Average daylight in December: 10.4h

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

  • Average sunshine in December: 15h

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

Average UV index in December - Midway Atoll, Midway Island, USA
  • Average UV index in December: 5

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).