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 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
With its high average temperature of 68.4°F (20.2°C) and a low of 56.1°F (13.4°C), January is regarded as the coldest month.Humidity
In Port Saint John, the average relative humidity in January is 73%.Rainfall
In Port Saint John, during January, the rain falls for 11.8 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, in Port Saint John, there are 202 rainfall days, and 40.2" (1021mm) of precipitation is accumulated.Daylight
The average length of the day in January is 10h and 34min.On the first day of January, sunrise is at 7:15 am and sunset at 5:37 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:01 pm EST.
Sunshine
January, November and December, with an average of 6.1h of sunshine, are months with the least sunshine in Port Saint John.UV index
January is the month with the lowest UV index, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: During January, 4 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Preventing sun damage is advised. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What month is the coldest in Port Saint John?
What are the temperatures in Port Saint John in January?
What is the average humidity in January in Port Saint John?
How many days does it rain in January in Port Saint John?
How many hours of daylight does Port Saint John have in January?
When is the sunrise / sunset in January in Port Saint John?
What is the month with the least sunshine in Port Saint John?
How many hours of sunshine does Port Saint John have in January?
When is the lowest UV index in Port Saint John?
What is the UV index reading in January in Port Saint John?
Average temperature in January
Port Saint John, FL
- Average high temperature in January: 68.4°F
The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is January (68.4°F).
- Average low temperature in January: 56.1°F
The month with the highest average low temperature is August (77.9°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).
Average pressure in January
Port Saint John, FL
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in January
Port Saint John, FL
- Average wind speed in January: 8.8mph
The windiest months (with the highest average wind speed) are January and November (8.8mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in January
Port Saint John, FL
- Average humidity in January: 73%
The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is March (71%).
Average rainfall in January
Port Saint John, FL
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is August (6.81").
The driest month (with the least rainfall) is March (1.42").
Average rainfall days in January
Port Saint John, FL
- Average rainfall days in January: 11.8 days
The months with the highest number of rainy days are July and August (25.8 days).
The month with the least rainy days is February (10.8 days).
Average daylight in January /
Average sunshine in January
Port Saint John, FL
- Average daylight in January: 10h and 4min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in January: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January, November and December (Average sunshine: 6h and 6min).
Average sunshine days in January
Port Saint John, FL
- Average sunshine days in January: 17.2 days
The months with the most sunshine days are January and March (17.2 days).
The month with the least sunshine days is August (2.3 days).
Average UV index in January
Port Saint John, FL
- Average UV index in January: 4
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in January
Port Saint John, FL
- Average cloud cover in January: 35
The months with the most cloud cover are January, November and December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in January
Port Saint John, 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).
Port Saint John, Florida, USA
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