Midway Atoll
Midway Island, USA
Long-term weather forecast
Long-term weather forecast

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

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

Temperature

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

Rainfall

In Midway Atoll, Midway Island, 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, the average water temperature is 71.6°F (22°C).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 71.6°F (22°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)

Daylight

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

Sunshine

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

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in December in Midway Atoll?

The average high-temperature, in December, in Midway Atoll, Midway Island, is 73°F (22.8°C), while 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, in December, it is raining for 16 days, with typically 4.1" (104.1mm) of accumulated precipitation.

What is the ocean temperature in December in Midway Atoll?

In Midway Atoll, the average seawater temperature in December is 71.6°F (22°C). 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).

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

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

What is the average length of the day in December in Midway Atoll?

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

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

The average sunshine in December in Midway Atoll, Midway Island, 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.

How high is the UV index in December in Midway Atoll?

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: 22.8°C

Warmest months (with the highest average high temperature) are August and September (28.9°C).
Months with the lowest average high temperature are January and February (21.1°C).

  • Average low temperature in December: 18.3°C

Months with the highest average low temperature are July, August and September (23.9°C).
Coldest months (with the lowest average low temperature) are January and February (16.7°C).

Average rainfall in December - Midway Atoll, Midway Island, USA
  • Average rainfall in December: 104.1mm

The wettest month (with the highest rainfall) is January (127mm).
The driest month (with the lowest rainfall) is June (55.9mm).

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 lowest number of rainy days are May and June (9 days).

Average sea temperature in December - Midway Atoll, Midway Island, USA
  • Average sea temperature in December: 22°C

Best months for swimming (with the highest average sea temperature) are August and September (27°C).
Coldest months (with the lowest average sea temperature) are January, February and March (20°C).

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 shortest days is December (Average daylight: 10.4h).

  • Average sunshine in December: 15h

Months with most sunshine are July, September and October (Average sunshine: 18h).
Months with 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).