Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the coldest month, with the temperature often reaching an average high of 73.4°F (23°C) and an average low of 64°F (17.8°C).Humidity
In January, the average relative humidity is 72%.Rainfall
January is the month with the least rainfall. Rain falls for 7.7 days and accumulates 0.39" (10mm) of precipitation.Ocean temperature
In Surfside, the average seawater temperature in January is 74.1°F (23.4°C).Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 74.1°F (23.4°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)
Daylight
The average length of the day in January is 10h and 44min.On the first day of January, sunrise is at 7:07 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:02 pm EST.
Sunshine
In Surfside, the average sunshine in January is 6.5h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 5 in January translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Warning! The reflection of sand and water increases the UV dose.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What is the average January temperature?
What is the average humidity in January in Surfside?
What is the driest month?
How many days does it rain in January?
What is the ocean temperature in January in Surfside?
How many hours of daylight does Surfside have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index in Surfside?
What is the UV index reading in January?
Average temperature in January
Surfside, FL
- Average high temperature in January: 73.4°F
The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (73.4°F).
- Average low temperature in January: 64°F
The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (64°F).
Average pressure in January
Surfside, FL
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).
Average wind speed in January
Surfside, FL
- Average wind speed in January: 10.6mph
The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in January
Surfside, FL
- Average humidity in January: 72%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (69%).
Average rainfall in January
Surfside, FL
- Average rainfall in January: 0.39"
The wettest month (with the highest rainfall) is August (2.2").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in January
Surfside, FL
- Average rainfall days in January: 7.7 days
The month with the highest number of rainy days is September (21.3 days).
The month with the least rainy days is February (7.5 days).
Average sea temperature in January
Surfside, FL
- Average sea temperature in January: 74.1°F
The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is February (74°F).
Average daylight in January /
Average sunshine in January
Surfside, FL
- Average daylight in January: 10h and 4min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January: 6h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in January
Surfside, FL
- Average sunshine days in January: 19.5 days
The month with the most sunshine days is March (20 days).
The month with the least sunshine days is September (5.1 days).
Average UV index in January
Surfside, FL
- Average UV index in January: 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 January
Surfside, FL
- Average cloud cover in January: 33
The month with the most cloud cover is October (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in January
Surfside, FL
- Average visibility in January: 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).
Surfside, Florida, USA
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