December weather forecastPort Salerno, FL
December
Weather in December
December, the first month of the winter in Port Salerno, is still a warm month, with an average temperature varying between 65.3°F (18.5°C) and 74.5°F (23.6°C).Temperature
At the onset of December, Port Salerno records an average high-temperature of a still moderately hot 74.5°F (23.6°C), showing little deviation from the preceding month. Throughout the nights in December, an average low-temperature of 65.3°F (18.5°C) is noted.Humidity
The average relative humidity in December is 76%.Rainfall
In December, the rain falls for 9.3 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 168.1 rainfall days, and 14.09" (358mm) of precipitation is accumulated.Ocean temperature
In Port Salerno, the average seawater temperature in December is 75.6°F (24.2°C).Note: Think about diving into 75.6°F (24.2°C) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 77°F (25°C) and 82.4°F (28°C).
Daylight
The month with the shortest days is December, with an average of 10h and 30min of daylight.On the first day of the month, sunrise is at 6:53 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:10 am and sunset at 5:38 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 6.1h of sunshine.UV index
January and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: During December, 5 as the daily maximum UV index converts into the following advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Stay cautious! Sand and water reflections increase UV radiation potency.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Port Salerno, FL
- Average high temperature in December: 74.5°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (71.4°F).
- Average low temperature in December: 65.3°F
The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (61.2°F).
Average pressure in December
Port Salerno, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
Port Salerno, FL
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January, March and November (10.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Port Salerno, FL
- Average humidity in December: 76%
The months with the highest relative humidity are June and August (78%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Port Salerno, FL
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Port Salerno, FL
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is August (23.1 days).
The month with the least rainy days is February (7.7 days).
Average sea temperature in December
Port Salerno, FL
- Average sea temperature in December: 75.6°F
The best month for swimming (with the highest average sea temperature) is August (85.1°F).
The coldest month (with the lowest average sea temperature) is February (73.3°F).
Average daylight in December /
Average sunshine in December
Port Salerno, FL
- Average daylight in December: 10h and 30min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 6h and 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).
Average sunshine days in December
Port Salerno, FL
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is August (3.4 days).
Average UV index in December
Port Salerno, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in December
Port Salerno, FL
- Average cloud cover in December: 34
The months with the most cloud cover are January, November and December (Cloud cover 34).
The months with the least cloud cover are May and July (Cloud cover 26).
Average visibility in December
Port Salerno, FL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
