January weather forecastPort Royal, SC
January
Weather in January
January in Port Royal, South Carolina demonstrates a milder onset of winter, with relatively low chill compared to its northern counterparts. Daylight hours, peaking at an average of 10.3 hours, mark a progressive lengthening of days since the winter solstice. Witnessing 8.6 days of rainfall on average, January is not the wettest month of the year, but the chill in the air can make wet days feel slightly nippy. January's lowest temperatures hover around 44.1°F (6.7°C), while its highs tend to reach a comfortable average of 57.6°F (14.2°C). The crisp January mornings often feature a light dusting of frost, adding a quiet beauty to Port Royal’s winter scenery.Temperature
Port Royal records the coldest temperatures in January, averaging a high of 57.6°F (14.2°C) and a low of 44.1°F (6.7°C).Humidity
In Port Royal, the average relative humidity in January is 72%.Rainfall
In Port Royal, in January, it is raining for 8.6 days, with typically 0.91" (23mm) of accumulated precipitation. In Port Royal, during the entire year, the rain falls for 154.7 days and collects up to 23.11" (587mm) of precipitation.Snowfall
January, February and December are months with snowfall. January has the most snowfall days of the year. Snow falls for 0.2 days.Daylight
In Port Royal, the average length of the day in January is 10h and 19min.On the first day of January, sunrise is at 7:24 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:54 pm EST.
Sunshine
In January, the average sunshine is 5.8h.UV index
The month with the lowest UV index is January, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 3 in January translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. It's recommended to limit sun exposure when its radiation is at its peak during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Port Royal, SC
- Average high temperature in January: 57.6°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (57.6°F).
- Average low temperature in January: 44.1°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (44.1°F).
Average pressure in January
Port Royal, SC
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in January
Port Royal, SC
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in January
Port Royal, SC
- Average humidity in January: 72%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (71%).
Average rainfall in January
Port Royal, SC
- Average rainfall in January: 0.91"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in January
Port Royal, SC
- Average rainfall days in January: 8.6 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is November (6.8 days).
Average snowfall days in January
Port Royal, SC
- Average snowfall days in January: 0.2 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Port Royal, SC
- Average daylight in January: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January: 5h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in January
Port Royal, SC
- Average sunshine days in January: 20 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is August (5.3 days).
Average UV index in January
Port Royal, SC
- Average UV index in January: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in January
Port Royal, SC
- Average cloud cover in January: 34
The months with the most cloud cover are February and December (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in January
Port Royal, SC
- 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).
