December weather forecastRosario, Philippines

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Rosario, Philippines, with an average temperature fluctuating between 23.2°C (73.8°F) and 28.2°C (82.8°F).

Temperature

With the advent of December, Rosario's high-temperatures adjust to a still warm 28.2°C (82.8°F), closely aligning with the preceding month. In Rosario, the month of December records an average minimum temperature of 23.2°C (73.8°F), a slight dip from the daily highs.

Heat index

The heat index value during December is evaluated at a hot 33°C (91.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Rosario, during December, the rain falls for 19.4 days and regularly aggregates up to 82mm (3.23") of precipitation. In Rosario, during the entire year, the rain falls for 250.9 days and collects up to 1357mm (53.43") of precipitation.

Daylight

With an average of 11h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:05 am and sunset at 5:25 pm. On the last day of December, in Rosario, sunrise is at 6:20 am and sunset at 5:38 pm PST.

Sunshine

In December, the average sunshine is 5.9h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in December translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Updated: Jul 23, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during December is 28.2°C (82.8°F) and the low-temperature is 23.2°C (73.8°F). In December, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 33°C (91.4°F).

The average relative humidity in December is 81%.

In Rosario, in December, it is raining for 19.4 days, with typically 82mm (3.23") of accumulated precipitation.

December has the shortest days of the year, with an average of 11h and 18min of daylight.

The average day length in December is 11h and 17min.

In December, on the first day of the month, sunrise is at 6:05 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 5:38 pm PST.

In December, the average sunshine duration is 5.9h.

January, November and December, with an average maximum UV index of 6, are months with the lowest UV index.

In Rosario, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

29.2°C

28.2°C

26.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.5km/h

11.6km/h

11.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

6.7

5.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Rosario, Philippines

Average high temperature in December: 28.2°C

The warmest month (with the highest average high temperature) is May (32.2°C).
The month with the lowest average high temperature is January (26.9°C).

Average low temperature in December: 23.2°C

The month with the highest average low temperature is May (25°C).
The coldest month (with the lowest average low temperature) is February (21.8°C).

Average pressure in December
Rosario, Philippines

Average pressure in December: 1011.5mbar

The month with the highest atmospheric pressure is February (1013.5mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).

Average wind speed in December
Rosario, Philippines

Average wind speed in December: 10.7km/h

The windiest month (with the highest average wind speed) is January (11.1km/h).
The calmest month (with the lowest average wind speed) is May (6.2km/h).

Average humidity in December
Rosario, Philippines

Average humidity in December: 81%

The months with the highest relative humidity are July, August and September (83%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Rosario, Philippines

Average rainfall in December: 82mm

The wettest month (with the highest rainfall) is July (217mm).
The driest month (with the least rainfall) is February (22mm).

Average rainfall days in December
Rosario, Philippines

Average rainfall days in December: 19.4 days

The month with the highest number of rainy days is July (27.7 days).
The month with the least rainy days is February (13.4 days).

Average daylight in December /
Average sunshine in December
Rosario, Philippines

Average daylight in December: 11h and 18min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

Average sunshine in December: 5h and 54min

The month with the most sunshine is April (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

Average sunshine days in December
Rosario, Philippines

Average sunshine days in December: 5.5 days

The month with the most sunshine days is April (10.4 days).
The month with the least sunshine days is July (2.8 days).

Average UV index in December
Rosario, Philippines

Average UV index in December: 6

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

Average cloud cover in December
Rosario, Philippines

Average cloud cover in December: 42

The month with the most cloud cover is August (Cloud cover 50).
The month with the least cloud cover is April (Cloud cover 27).

Average visibility in December
Rosario, Philippines

Average visibility in December: 10km

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