December weather forecast
Koror, Palau

Weather in December

The first month of the winter, December, is also a moderately hot month in Koror, Palau, with average temperature fluctuating between 28.2°C (82.8°F) and 28.9°C (84°F).

Temperature

In Koror, the average high-temperature in December is essentially the same as in November - a still moderately hot 28.9°C (84°F). The average low-temperature, in December, is 28.2°C (82.8°F).

Heat index

The average heat index in December is calculated to be a hot 33.8°C (92.8°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, pregnancy, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity is 77%.

Rainfall

In Koror, in December, it is raining for 27.8 days, with typically 199mm (7.83") of accumulated precipitation. In Koror, during the entire year, the rain falls for 303.8 days and collects up to 2074mm (81.65") of precipitation.

Sea temperature

Months with the warmest seawater in Koror are April through December, with an average sea temperature of 29°C (84.2°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

Months with the shortest days in Koror are January and December, with an average of 11.7h of daylight.

Sunshine

December has the least sunshine of the year in Koror, with an average of 6.1h of sunshine.

UV index

February through August, October and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Koror?

In Koror, in December, the average high-temperature is 28.9°C (84°F), and the average low-temperature is 28.2°C (82.8°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in December is calculated to be 33.8°C (92.8°F).

What is the average humidity in December in Koror?

In December, the average relative humidity in Koror is 77%.

How many days does it rain in December in Koror?

In December, in Koror, the rain falls for 27.8 days. Throughout December, 199mm (7.83") of precipitation is accumulated.

When is the sea warmest in Koror?

April through December, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Koror, Palau.

What is the water temperature in December in Koror?

In Koror, Palau, the average seawater temperature in December is 29°C (84.2°F). 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.

What is the month with the shortest days in Koror?

January and December, with an average of 11.7h of daylight, are months with the shortest days in Koror, Palau.

What is the average length of the day in December in Koror?

The average length of the day in December in Koror is 11.7h.

What is the month with the least sunshine in Koror?

December has the least sunshine of the year, with an average of 6.1h of sunshine.

How many hours of sunshine does Koror have in December?

In December, the average sunshine in Koror, Palau, is 6.1h.

What are the months with the highest UV index in Koror?

Months with the highest UV index in Koror are February through August, October and December, with an average maximum UV index of 7.

How high is the UV index in December in Koror?

The average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in December
Koror, Palau

Average temperature in December - Koror, Palau
  • Average high temperature in December: 28.9°C

The warmest month (with the highest average high temperature) is May (29.3°C).
Months with the lowest average high temperature are February and March (28.3°C).

  • Average low temperature in December: 28.2°C

The month with the highest average low temperature is November (28.4°C).
The coldest month (with the lowest average low temperature) is February (27.5°C).

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Average pressure in December
Koror, Palau

Average pressure in December - Koror, Palau
  • Average pressure in December: 1007.9mbar

Months with the highest atmospheric pressure are February and March (1009.6mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).

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Average wind speed in December
Koror, Palau

Average wind speed in December - Koror, Palau
  • Average wind speed in December: 21.3km/h

The windiest month (with the highest average wind speed) is February (24.5km/h).
The calmest month (with the lowest average wind speed) is June (13.5km/h).

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Average humidity in December
Koror, Palau

Average humidity in December - Koror, Palau
  • Average humidity in December: 77%

Months with the highest relative humidity are January, February, March and April (78%).
The month with the lowest relative humidity is June (75%).

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Average rainfall in December
Koror, Palau

Average rainfall in December - Koror, Palau
  • Average rainfall in December: 199mm

The wettest month (with the highest rainfall) is June (209mm).
The driest month (with the least rainfall) is March (119mm).

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Average rainfall days in December
Koror, Palau

Average rainfall days in December - Koror, Palau
  • Average rainfall days in December: 27.8 days

Months with the highest number of rainy days are January and December (27.8 days).
The month with the least rainy days is September (23.4 days).

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Average sea temperature in December
Koror, Palau

Average sea temperature in December - Koror, Palau
  • Average sea temperature in December: 29°C

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

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Average daylight in December /
Average sunshine in December
Koror, Palau

Average daylight in December / Average sunshine in December - Koror, Palau
  • Average daylight in December: 11.7h

Months with the longest days are May, June and July (Average daylight: 12.5h).
Months with the shortest days are January and December (Average daylight: 11.7h).

  • Average sunshine in December: 6.1h

The month with the most sunshine is May (Average sunshine: 9.7h).
The month with the least sunshine is December (Average sunshine: 6.1h).

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Average sunshine days in December
Koror, Palau

Average sunshine days in December - Koror, Palau
  • Average sunshine days in December: 1.6 days

The month with the most sunshine days is August (5.9 days).
Months with the least sunshine days are February and December (1.6 days).

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Average UV index in December
Koror, Palau

Average UV index in December - Koror, Palau
  • Average UV index in December: 7

Months with the highest UV index are February, March, April, May, June, July, August, October and December (UV index 7).
Months with the lowest UV index are January, September and November (UV index 6).

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Average cloud cover in December
Koror, Palau

Average cloud cover in December - Koror, Palau
  • Average cloud cover in December: 44

The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is March (Cloud cover 43).

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Average visibility in December
Koror, Palau

Average visibility in December - Koror, Palau
  • Average visibility in December: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, October and December (10km).
Months with the lowest visibility are September and November (9km).

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