December weather forecast
San Miguel, El Salvador

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Weather in December

December in San Miguel signifies the final transition to the dry season. Rainfall becomes a rare sight with a meager 5mm (0.2") noted throughout the city. The sun regains prominence as the city basks under its bright rays after prolonged rainy days. December weather in San Miguel comes as a relief to its residents, with clear skies, minimal rainfall, and steadily warm temperatures.

Temperature

With the arrival of December in San Miguel, an average high temperature of a still hot 31°C (87.8°F) is noted, consistent with that of November. San Miguel, in December, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 17°C (62.6°F).

Rainfall

In San Miguel, in December, during 5 rainfall days, 5mm (0.2") of precipitation is typically accumulated. Throughout the year, there are 163 rainfall days, and 1703mm (67.05") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 24min of daylight.
On the first day of the month, sunrise is at 06:00 and sunset at 17:23. On the last day of December, sunrise is at 06:15 and sunset at 17:36 CST.

Sunshine

In December, the average sunshine is 8h.

UV index

With an average maximum UV index of 9, December is the month with the lowest UV index in San Miguel. A UV Index estimate of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 9 during December translates into the following directions:
Ensure you're always protected. Unprotected skin can get damaged in moments. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Apply and frequently reapply a minimum SPF 30 sunscreen even on cloudy days, especially after swimming or an outdoor workout.

Frequently asked questions

How hot is December in San Miguel?

In December, the average high-temperature and low-temperature are 31°C (87.8°F) and 17°C (62.6°F) respectively.

How much does it rain in San Miguel in December?

In San Miguel, El Salvador, in December, during 5 rainfall days, 5mm (0.2") of precipitation is typically accumulated.

What is the month with the shortest days in San Miguel?

The month with the shortest days in San Miguel, El Salvador, is December, with an average of 11h and 24min of daylight.

How many hours of daylight does San Miguel have in December?

In December, the average day length in San Miguel, El Salvador, is 11h and 21min.

When is the sunrise / sunset in December in San Miguel?

On the first day of December in San Miguel, El Salvador, sunrise is at 06:00 and sunset at 17:23. On the last day of the month, sunrise is at 06:15 and sunset at 17:36 CST.

How long on average sun shines in December in San Miguel?

In San Miguel, El Salvador, the average sunshine duration in December is 8h.

When is the lowest UV index in San Miguel?

The month with the lowest UV index in San Miguel is December, with an average maximum UV index of 9.

What is the UV index intensity in December in San Miguel?

The average daily maximum UV index in December is 9. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unprotected exposure to UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in December
San Miguel, El Salvador

Average temperature in December - San Miguel, El Salvador
  • Average high temperature in December: 31°C

The warmest months (with the highest average high temperature) are March and April (34°C).
The months with the lowest average high temperature are September and October (30°C).

  • Average low temperature in December: 17°C

The months with the highest average low temperature are April, May, June and July (20°C).
The coldest month (with the lowest average low temperature) is January (16°C).

Average rainfall in December
San Miguel, El Salvador

Average rainfall in December - San Miguel, El Salvador
  • Average rainfall in December: 5mm

The wettest month (with the highest rainfall) is September (365mm).
The driest month (with the least rainfall) is January (2mm).

Average rainfall days in December
San Miguel, El Salvador

Average rainfall days in December - San Miguel, El Salvador
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is September (28 days).
The months with the least rainy days are January, February and March (3 days).

Average daylight in December /
Average sunshine in December
San Miguel, El Salvador

Average daylight in December / Average sunshine in December - San Miguel, El Salvador
  • Average daylight in December: 11h and 2min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).

  • Average sunshine in December: 8h

The months with the most sunshine are January, February, March and April (Average sunshine: 9h).
The months with the least sunshine are September and October (Average sunshine: 6h).

Average UV index in December
San Miguel, El Salvador

Average UV index in December - San Miguel, El Salvador
  • Average UV index in December: 9

The 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).

San Miguel, El Salvador

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