The best times to visit Barnwell for ideal weather are

September 24th to November 18th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Barnwell Travel Info

Weather in Barnwell

Temperature

Average temperatures in Barnwell vary greatly. Considering humidity, temperatures feel nice some of the year, but often too hot in the summer and cold in the winter with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 27th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Barnwell, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 94.1°F (34.5°C) with temperatures rarely dropping below 73.2°F (22.9°C) at night.

Barnwell Temperatures (Fahrenheit)

Key
High
Average
Low

Barnwell Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Barnwell Perceived Temperature (F)

Key
High
Average
Low

Barnwell Perceived Temperature (C)

Key
High
Average
Low

 

Average Barnwell Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 57.9 45.5 36
Feb 60.8 47.8 37.8
Mar 69.5 56 45.1
Apr 78.5 65.5 53.7
May 84.5 72.5 61.7
Jun 91.3 79.4 69.6
Jul 92.4 81.1 72.2
Aug 90.7 79.5 71.4
Sep 86.1 74.7 65.9
Oct 77.4 64.1 53.4
Nov 67.7 54.2 44
Dec 61.9 50.1 41

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 14.4 7.5 2.2
Feb 16 8.8 3.2
Mar 20.8 13.3 7.3
Apr 25.8 18.6 12.1
May 29.2 22.5 16.5
Jun 32.9 26.3 20.9
Jul 33.6 27.3 22.3
Aug 32.6 26.4 21.9
Sep 30.1 23.7 18.8
Oct 25.2 17.8 11.9
Nov 19.8 12.3 6.7
Dec 16.6 10.1 5

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Barnwell are October, November, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid July with an average of 2 days of significant precipitation the week of July 9th.

When can you find snow in Barnwell? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Barnwell.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Barnwell (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 16% 0 2.7
Feb 22% 0 3.8
Mar 18% 0 3.5
Apr 19% 0 3.5
May 16% 0 3.2
Jun 20% 0 3.8
Jul 25% 0 5.1
Aug 28% 0 5.7
Sep 18% 0 3.1
Oct 12% 0 2.7
Nov 12% 0 2.8
Dec 19% 0 4.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 16 0 6.9
Feb 22 0 9.7
Mar 18 0 8.9
Apr 19 0 8.9
May 16 0 8.1
Jun 20 0 9.7
Jul 25 0 13
Aug 28 0 14.5
Sep 18 0 7.9
Oct 12 0 6.9
Nov 12 0 7.1
Dec 19 0 11.2

 

Humidity and Wind

Barnwell has some very humid months, with other comfortably humid months. The least humid month is April (56% relative humidity), and the most humid month is August (71.3%).

Wind in Barnwell is usually extremely calm. The windiest month is March, followed by April and May. March’s average wind speed of around 4.6 knots (5.3 MPH or 8.6 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early April where average top sustained speeds reach 12.9 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Barnwell.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 3.8 Barely noticeable 10.8 Gentle breeze
Feb 4.2 Light breeze 11.7 Significant breeze
Mar 4.6 Light breeze 12.1 Gentle breeze
Apr 4.6 Light breeze 12.1 Significant breeze
May 4.3 Light breeze 11.8 Gentle breeze
Jun 3.6 Barely noticeable 10.6 Gentle breeze
Jul 3.6 Barely noticeable 11 Gentle breeze
Aug 3.1 Barely noticeable 10.1 Gentle breeze
Sep 3.4 Barely noticeable 9.8 Gentle breeze
Oct 3.3 Barely noticeable 9.9 Gentle breeze
Nov 3.2 Barely noticeable 10.1 Gentle breeze
Dec 3.4 Barely noticeable 9.8 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 57.9%
Feb 57.5%
Mar 56.4%
Apr 56%
May 61.6%
Jun 64%
Jul 66.5%
Aug 71.3%
Sep 69.2%
Oct 65.2%
Nov 63.7%
Dec 68.6%

 

Is it Safe to Travel to Barnwell?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Barnwell, SC, US is July, followed by March and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Barnwell in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 45.5 in November means 45.5% of the tourists vs. July.

 

 

Overall Barnwell Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 88.1°F (31.2°C) and 62.1°F (16.7°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 6 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 6 to 9 days of precipitation per month. June – August is the busiest season for tourism in Barnwell, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 89.1°F (31.7°C) and 65.2°F (18.4°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 4 to 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Barnwell to be enjoyable for warm weather travelers. The average high during this season is between 63.5°F (17.5°C) and 56.4°F (13.6°C). On average, it rains or snows a fair amount: 5 to 6 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travel› the United States › Barnwell, SC, US