Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December stands out as San Juan del Sur's coldest month, with temperatures ranging between an average high of 28.8°C (83.8°F) and a low of 24.3°C (75.7°F).Heat index
December's average heat index is evaluated at a tropical 33°C (91.4°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Observations indicate that the heat index values are for shady locations with light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The average relative humidity in December in San Juan del Sur is 74%.Rainfall
In December, in San Juan del Sur, the rain falls for 20.1 days. Throughout December, 30mm (1.18") of precipitation is accumulated. In San Juan del Sur, during the entire year, the rain falls for 237.9 days and collects up to 717mm (28.23") of precipitation.Sea temperature
In San Juan del Sur, the average seawater temperature in December is 27.7°C (81.9°F).Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.
Daylight
With an average of 11h and 30min of daylight, December has the shortest days of the year in San Juan del Sur.On the first day of the month, sunrise is at 05:47 and sunset at 17:18. On the last day of December, in San Juan del Sur, sunrise is at 06:02 and sunset at 17:31 CST.
Sunshine
The average sunshine in December in San Juan del Sur is 7.9h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 7 in December transforms into this advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Frequently asked questions
What time of the year is the coldest in San Juan del Sur?
How hot is it in San Juan del Sur in December?
What is the average humidity in December in San Juan del Sur?
How many days does it rain in December in San Juan del Sur?
What is the sea water temperature in December in San Juan del Sur?
What is the month with the shortest days in San Juan del Sur?
How many hours of daylight does San Juan del Sur have in December?
When are sunrise and sunset in December in San Juan del Sur?
How long on average sun shines in December in San Juan del Sur?
What are the months with the highest UV index in San Juan del Sur?
What are the months with the lowest UV index in San Juan del Sur?
What is the UV index reading in December in San Juan del Sur?
Average temperature in December
San Juan del Sur, Nicaragua
- Average high temperature in December: 28.8°C
The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is December (28.8°C).
- Average low temperature in December: 24.3°C
The month with the highest average low temperature is May (26.3°C).
The coldest months (with the lowest average low temperature) are January, February and December (24.3°C).
Average pressure in December
San Juan del Sur, Nicaragua
- Average pressure in December: 1011.2mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is October (1010.2mbar).
Average wind speed in December
San Juan del Sur, Nicaragua
- Average wind speed in December: 23.7km/h
The windiest month (with the highest average wind speed) is January (26.6km/h).
The calmest month (with the lowest average wind speed) is October (12.3km/h).
Average humidity in December
San Juan del Sur, Nicaragua
- Average humidity in December: 74%
The month with the highest relative humidity is October (80%).
The months with the lowest relative humidity are March and April (69%).
Average rainfall in December
San Juan del Sur, Nicaragua
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is October (151mm).
The driest month (with the least rainfall) is March (7mm).
Average rainfall days in December
San Juan del Sur, Nicaragua
- Average rainfall days in December: 20.1 days
The month with the highest number of rainy days is July (27.4 days).
The month with the least rainy days is March (10.6 days).
Average sea temperature in December
San Juan del Sur, Nicaragua
- Average sea temperature in December: 27.7°C
The best month for swimming (with the highest average sea temperature) is August (29.3°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).
Average daylight in December /
Average sunshine in December
San Juan del Sur, Nicaragua
- Average daylight in December: 11h and 3min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 7h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 6h and 54min).
Average sunshine days in December
San Juan del Sur, Nicaragua
- Average sunshine days in December: 6.9 days
The month with the most sunshine days is March (13.2 days).
The month with the least sunshine days is July (2 days).
Average UV index in December
San Juan del Sur, Nicaragua
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
San Juan del Sur, Nicaragua
- Average cloud cover in December: 37
The month with the most cloud cover is July (Cloud cover 51).
The month with the least cloud cover is March (Cloud cover 23).
Average visibility in December
San Juan del Sur, Nicaragua
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
San Juan del Sur, Nicaragua
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