January weather - Winter 2025

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 snowfall in January
Average snowfall 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

The iconic historic Church of the Cross in Bluffton, South Carolina, set in a beautiful garden park

Weather in January

In Bluffton, South Carolina, the beginning of the new year is a blend of moderate temperatures and contrasting weather conditions. The low temperatures, ranging from 46°F (7.8°C), are gradually replaced by higher ones, hitting 57.4°F (14.1°C). The influence of the ocean contributes to a moderate winter climate and influences Bluffton's average rainfall of 1.02" (26mm). The collision of the cold, dry, continental air mass from the north with the warm, moist, tropical air mass from the southeast brings about the frequency of rainfall days being 8.3 days. This affirms an active and varied weather pattern, intricately influenced by regional geography.

Temperature

Bluffton witnesses the coldest weather in January, with temperatures averaging a high of 57.4°F (14.1°C) and a low of 46°F (7.8°C).

Humidity

The least humid month is January, with an average relative humidity of 72%.

Rainfall

January is the month with the least rainfall in Bluffton. Rain falls for 8.3 days and accumulates 1.02" (26mm) of precipitation.

Snowfall

The only month with snowfall is January. January is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.

Daylight

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 5:29 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:55 pm EST.

Sunshine

In Bluffton, the average sunshine in January is 5.8h.

UV index

With an average maximum UV index of 3, January is the month with the lowest UV index in Bluffton, South Carolina. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 3 in January transforms into the following instructions:
Make use of precautions - It is urged to ward off sun damage. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Updated: Jun 28, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Bluffton?

Bluffton's January weather, with an average high temperature of 57.4°F (14.1°C) and an average low temperature of 46°F (7.8°C), tends to be the coldest of the year.

What is the usual temperature for Bluffton in January?

In Bluffton, 57.4°F (14.1°C) is the average high-temperature and 46°F (7.8°C) is the average low-temperature during January.

What is the least humid month?

With an average relative humidity of 72%, January is the least humid month.

What is the average humidity in January?

The average relative humidity in January is 72%.

What is the driest month in Bluffton?

January is the month with the least rainfall in Bluffton. Rain falls for 8.3 days and accumulates 1.02" (26mm) of precipitation.

How many days does it rain in January?

In January, the rain falls for 8.3 days. Throughout January, 1.02" (26mm) of precipitation is accumulated.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.

When does it start snowing?

January is the first month it typically snows. Throughout January, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in January?

The average day length in January is 10h and 19min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:24 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:55 pm EST.

How long on average sun shines in January?

In Bluffton, the average sunshine duration in January is 5.8h.

What is the month with the lowest UV index in Bluffton?

The month with the lowest UV index is January, with an average maximum UV index of 3.

What is the UV index intensity in January?

In Bluffton, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

61.5°F 16.4°C

57.4°F 14.1°C

60.4°F 15.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.1mph 16.3km/h

10.2mph 16.4km/h

10.1mph 16.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

17.2

20.3

15.8

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Bluffton, SC

Average high temperature in January: 57.4°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (57.4°F).

Average low temperature in January: 46°F

The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (46°F).

Average pressure in January
Bluffton, 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
Bluffton, SC

Average wind speed in January: 9.6mph

The windiest months (with the highest average wind speed) are January, March and April (9.6mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

Average humidity in January
Bluffton, SC

Average humidity in January: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is January (72%).

Average rainfall in January
Bluffton, SC

Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is August (6.06").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in January
Bluffton, SC

Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is August (25 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in January
Bluffton, SC

Average snowfall in January: 0.04"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in January
Bluffton, SC

Average snowfall days in January: 0.1 days

The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in January /
Average sunshine in January
Bluffton, SC

Average daylight in January: 10h and 2min

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 5min

The months with the most sunshine are June and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in January
Bluffton, SC

Average sunshine days in January: 20.3 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (2.8 days).

Average UV index in January
Bluffton, 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
Bluffton, SC

Average cloud cover in January: 33

The months with the most cloud cover are February and December (Cloud cover 38).
The months with the least cloud cover are June and July (Cloud cover 25).

Average visibility in January
Bluffton, 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).

January weather forecast
Bluffton, SC

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