December weather forecast
San Juan Tepezontes, El Salvador

englishespañol中文
Share

Weather in December

December ushers in pleasant weather conditions in San Juan Tepezontes, serving as a relief from the preceding humid months. Temperatures hold steady, and relative humidity plunges to its lowest level since the start of the year. Rainfall returns to a remarkably lower volume of 5mm (0.2"), which underlines the arrival of the dry season. Minimal cloud coverage opens up the heavens for extended daylight hours. The weather remains refreshing all through the month, closing the year on a bright note.

Temperature

The unfolding of December in San Juan Tepezontes shows an average high-temperature of a still hot 30.8°C (87.4°F), indicating a slight variance from November's 30.5°C (86.9°F). The December nights in San Juan Tepezontes, El Salvador, bear witness to a significant drop from the daytime highs, settling at an average temperature of 18.6°C (65.5°F).

Heat index

The average heat index in December is appraised at a very hot 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Note that heat index values are valued for light wind and location in the shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In December, the average relative humidity is 69%.

Rainfall

In San Juan Tepezontes, in December, during 3.3 rainfall days, 5mm (0.2") of precipitation is typically accumulated. In San Juan Tepezontes, during the entire year, the rain falls for 192.2 days and collects up to 1062mm (41.81") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 06:03 and sunset at 17:26. On the last day of December, sunrise is at 06:19 and sunset at 17:39 CST.

Sunshine

The months with the least sunshine are January and December, with an average of 7.7h of sunshine.

UV index

January, June through December, with an average maximum UV index of 6, are months with the lowest UV index in San Juan Tepezontes. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, the UV index of 6 transforms into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Jan 30, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

Is it hot in San Juan Tepezontes during December?

The high-temperature, in December, in San Juan Tepezontes, is 30.8°C (87.4°F), while the low-temperature averages to 18.6°C (65.5°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in December is appraised at 37°C (98.6°F).

What is the average humidity in December in San Juan Tepezontes?

The average relative humidity in December in San Juan Tepezontes is 69%.

How many days does it rain in December in San Juan Tepezontes?

In December, in San Juan Tepezontes, the rain falls for 3.3 days. Throughout December, 5mm (0.2") of precipitation is accumulated.

What is the month with the shortest days in San Juan Tepezontes?

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

How many hours of daylight does San Juan Tepezontes have in December?

In December, the average day length in San Juan Tepezontes, El Salvador, is 11h and 20min.

What time are sunrise and sunset in December in San Juan Tepezontes?

In December, on the first day of the month, sunrise is at 06:03 and sunset at 17:26. On the last day of the month, in San Juan Tepezontes, El Salvador, sunrise is at 06:19 and sunset at 17:39 CST.

What are the months with the least sunshine in San Juan Tepezontes?

January and December, with an average of 7.7h of sunshine, are months with the least sunshine in San Juan Tepezontes.

How long on average sun shines in December in San Juan Tepezontes?

In December, the average sunshine duration in San Juan Tepezontes is 7.7h.

What is the month with the lowest UV index in San Juan Tepezontes?

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

What is the UV index reading in December in San Juan Tepezontes?

The average daily maximum UV index in December in San Juan Tepezontes is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in December
San Juan Tepezontes, El Salvador

Average temperature in December - San Juan Tepezontes, El Salvador
  • Average high temperature in December: 30.8°C

The warmest month (with the highest average high temperature) is March (34.1°C).
The month with the lowest average high temperature is October (29.6°C).

  • Average low temperature in December: 18.6°C

The month with the highest average low temperature is April (22.3°C).
The coldest month (with the lowest average low temperature) is December (18.6°C).

[Resources]

Average pressure in December
San Juan Tepezontes, El Salvador

Average pressure in December - San Juan Tepezontes, El Salvador
  • Average pressure in December: 1013.1mbar

The month with the highest atmospheric pressure is January (1013.7mbar).
The months with the lowest atmospheric pressure are May and October (1011.4mbar).

[Resources]

Average wind speed in December
San Juan Tepezontes, El Salvador

Average wind speed in December - San Juan Tepezontes, El Salvador
  • Average wind speed in December: 7km/h

The windiest month (with the highest average wind speed) is January (7.5km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).

[Resources]

Average humidity in December
San Juan Tepezontes, El Salvador

Average humidity in December - San Juan Tepezontes, El Salvador
  • Average humidity in December: 69%

The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is March (59%).

[Resources]

Average rainfall in December
San Juan Tepezontes, El Salvador

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

The wettest month (with the highest rainfall) is May (242mm).
The driest month (with the least rainfall) is January (1mm).

[Resources]

Average rainfall days in December
San Juan Tepezontes, El Salvador

Average rainfall days in December - San Juan Tepezontes, El Salvador
  • Average rainfall days in December: 3.3 days

The month with the highest number of rainy days is September (27.5 days).
The month with the least rainy days is January (1.5 days).

[Resources]

Average daylight in December /
Average sunshine in December
San Juan Tepezontes, El Salvador

Average daylight in December / Average sunshine in December - San Juan Tepezontes, 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 18min).

  • Average sunshine in December: 7h and 4min

The month with the most sunshine is April (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).

[Resources]

Average sunshine days in December
San Juan Tepezontes, El Salvador

Average sunshine days in December - San Juan Tepezontes, El Salvador
  • Average sunshine days in December: 27.5 days

The month with the most sunshine days is January (29 days).
The month with the least sunshine days is September (1.3 days).

[Resources]

Average UV index in December
San Juan Tepezontes, El Salvador

Average UV index in December - San Juan Tepezontes, El Salvador
  • Average UV index in December: 6

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

[Resources]

Average cloud cover in December
San Juan Tepezontes, El Salvador

Average cloud cover in December - San Juan Tepezontes, El Salvador
  • Average cloud cover in December: 14

The month with the most cloud cover is September (Cloud cover 44).
The months with the least cloud cover are January and December (Cloud cover 14).

[Resources]

Average visibility in December
San Juan Tepezontes, El Salvador

Average visibility in December - San Juan Tepezontes, El Salvador
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April and December (10km).
The month with the lowest visibility is September (7km).

[Resources]

San Juan Tepezontes, El Salvador

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location