Monterrico
Guatemala
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Monterrico, Guatemala

The first month of the winter, December, is also a hot month in Monterrico, Guatemala, with average temperature varying between 21°C (69.8°F) and 33°C (91.4°F).
The ideal sea water temperature of 29°C (84.2°F) and only 4 rainfall days, with 6mm (0.2") of accumulated rainfall, make December the best time for swimming and other water activities.

Temperature

In Monterrico, the average high-temperature is practically the same as in November - a still hot 33°C (91.4°F). The average low-temperature, in Monterrico, is 21°C (69.8°F).

Rainfall

In Monterrico, Guatemala, during 4 rainfall days, 6mm (0.2") of precipitation is typically accumulated. In Monterrico, during the entire year, the rain falls for 158 days and collects up to 1684mm (66.3") of precipitation.

Sea temperature

In Monterrico, Guatemala, the average water temperature is 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

December has the shortest days of the year, with an average of 11.3h of daylight.

Sunshine

The average sunshine in December is 8h.

UV index

With an average maximum UV index of 9, December is the month with the lowest UV index in Monterrico, Guatemala. A UV Index reading of 8 to 10 represents a very high health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 9 in December transform into the following instructions:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 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. 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. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in December in Monterrico?

In Monterrico, in December, the average high-temperature is 33°C (91.4°F), and the average low-temperature is 21°C (69.8°F).

How many days does it rain in December in Monterrico?

In Monterrico, during December, the rain falls for 4 days and regularly aggregates up to 6mm (0.2") of precipitation.

How warm is the water in December in Monterrico?

In Monterrico, Guatemala, the average seawater temperature in December is 29°C (84.2°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 Monterrico?

The month with the shortest days in Monterrico is December, with an average of 11.3h of daylight.

How many hours of daylight does Monterrico have in December?

The average length of the day in December in Monterrico is 11.3h.

How many hours of sunshine does Monterrico have in December?

The average sunshine in December in Monterrico, Guatemala, is 8h.

What is the month with the lowest UV index in Monterrico?

With an average maximum UV index of 9, December is the month with the lowest UV index in Monterrico, Guatemala.

What is the UV index intensity in December in Monterrico?

In Monterrico, the average daily maximum UV index in December is 9. A UV Index reading of 8 to 10 represents a very high hazard to health from unprotected exposure to the UV radiation.
Average temperature in December - Monterrico, Guatemala
  • Average high temperature in December: 33°C

Warmest months (with the highest average high temperature) are March and April (34°C).
Months with the lowest average high temperature are June, August, September, October and November (32°C).

  • Average low temperature in December: 21°C

The month with the highest average low temperature is May (24°C).
Coldest months (with the lowest average low temperature) are January, February and December (21°C).

Average rainfall in December - Monterrico, Guatemala
  • Average rainfall in December: 6mm

The wettest month (with the highest rainfall) is September (354mm).
Driest months (with the lowest rainfall) are January and February (1mm).

Average rainfall days in December - Monterrico, Guatemala
  • Average rainfall days in December: 4 days

Months with the highest number of rainy days are June and September (24 days).
The month with the lowest number of rainy days is February (3 days).

Average sea temperature in December - Monterrico, Guatemala
  • Average sea temperature in December: 29°C

Best months for swimming (with the highest average sea temperature) are April, May, June and August (30°C).
Coldest months (with the lowest average sea temperature) are January and February (28°C).

Average daylight in December / Average sunshine in December - Monterrico, Guatemala
  • Average daylight in December: 11.3h

Months with the longest days are June and July (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in December: 8h

Months with most sunshine are February, March, April and May (Average sunshine: 9h).
The month with least sunshine is September (Average sunshine: 6h).

Average UV index in December - Monterrico, Guatemala
  • Average UV index in December: 9

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).