Climate and monthly weather forecast
Awendaw, SC

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The climate of Awendaw

A prevalent weather profile, the Köppen climate classification for Awendaw, South Carolina, USA, identifies it as Cfa - Humid subtropical with no dry season. Positioned on the Atlantic coastline, this region experiences mild winters with hot, humid summers.

Throughout the year, temperatures in Awendaw can range from 40.8°F (4.9°C) in January to 90.1°F (32.3°C) in July. The region also averages a relative humidity of 76%, rendering the atmosphere consistently moist. Rainfall appears frequently with overall annual precipitation fluctuating from 1.46" (37mm) in January to 6.46" (164mm) in August.

The occurrence of snow is significantly low, with only 0.04" (1mm) expected to collect twice a year, in January and December. The town experiences appreciable fluctuations in sunlight hours with an average of 14.3 hours in June to a minimum of 10 hours in December. The UV index peaks at 7 during the height of summer and drops to 3 in the cooler months. Stunning visibility is constantly at 6 miles throughout the year, while cloud cover varies from 26% to 40%.

Wind speeds mildly shift from 5.7mph (9.2km/h) in August to 7.6mph (12.2km/h) in April. The maximum registered wind speed of 8.3mph (13.4km/h) occurs in April, and wind gusts peak at 12.2mph (19.6km/h) in the same month, maintaining the area's gentle marine climate.

The best time to visit Awendaw

The optimal time to visit Awendaw, considering both pleasant weather and lower humidity, would be during the spring months of April and May. During this period, temperatures stay between 65.5°F (18.6°C) and 73.9°F (23.3°C), providing a comfortable climate favorable for outdoor activities. The town enjoys long daylight hours of 13 to 13.9 hours, and an amplified UV index allows for decent suntans. Although this period is accompanied by increased wind speeds, hovering at 7.6mph (12.2km/h) in April and reducing to 6.8mph (10.9km/h) in May, it ensures a refreshing atmosphere amid the sunshine.

The worst time to visit Awendaw

August stands out as the month with extreme climatic conditions in Awendaw. It has the highest rainfall amount of 6.46" (164mm), and the relative humidity climbs to a maximum of 78%. Temperatures hover around 88.7°F (31.5°C), and the UV index is at a high level of 6. Travelers wishing to avoid humid, hot, and wet conditions should consider visiting outside of this month.

Spring weather in Awendaw

From March to May, Awendaw features moderate weather conditions, with temperatures gradually warming from 49.5°F (9.7°C) to 73.9°F (23.3°C). Rainfall subtly escalates from 2.4" (61mm) in March to 3.35" (85mm) in May, while daylight hours expand from 12 to 13.9 hours. This season also witnesses an elevation in wind speed, peaking at 7.6mph (12.2km/h) in April. Nature enthusiasts can anticipate enjoying abundant greenery with the progressing spring showers.

Summer weather in Awendaw

Summertime in Awendaw, from June to August, is characterized by scorching temperatures from 80.2°F (26.8°C) to 90.1°F (32.3°C). Humidity reaches its peak value, 78%, in August, which also marks the heaviest rainfall of the year with 6.46" (164mm). Sunshine hours gradually decrease from the yearly high of 14.3 hours in June, and the UV index reaches its maximum value of 7. Despite these conditions, the coastal breezes maintain a degree of comfort throughout the summer.

Autumn weather in Awendaw

The autumn season, from September to November, sees a noticeable drop in temperatures, with values shifting from 84.2°F (29°C) to a milder 65.3°F (18.5°C). Rainfall quantities start high at 4.13" (105mm) in September but gradually decrease to 1.97" (50mm) by November. The town also enjoys ample daylight hours, ranging from 12.4 to 10.5 hours. The moderate climate during this period intertwined with lower humidity provides optimum conditions for outdoor exploration.

Winter weather in Awendaw

Winter in Awendaw, from December to February, is relatively mild with temperatures ranging between 40.8°F (4.9°C) and 59.9°F (15.5°C). While snowfall is noticeably minimal, the area records the most significant cloud cover of 40% during these months. Despite the reduction in daylight hours to 10, the winter period provides opportunities for winter activities without excessively cold weather. Moreover, with rainfall ranging from 1.46" (37mm) to 2.28" (58mm), winter in Awendaw offers a relatively dry environment compared to other seasons.

Weather in January

With a relative mild start to the year, January in Awendaw, South Carolina sees cool temperatures. Rainfall is moderate when compared to the rest of the year, and snowfall is a rare occurrence. Predominantly overcast, the gentle winds contribute to lower visibility levels. Weather in January »

Weather in February

February exhibits a slight warming trend that is punctuated with increased rainfall. Unlike January, February experiences a trivial amount of snowfall, but diminishes towards the end of the month. The daylight gradually increases from January, alongside a minor uptick in sunshine duration. Weather in February »

Weather in March

As we move into March, a notable increase in daily temperatures is observed. The balance between overcast conditions and sunny spells changes, with more sunshine and lengthier daylight hours. Winds pick up slightly, making March the beginning of the slightly breezier spring season. Weather in March »

Weather in April

April ushers in a drastic change in the weather patterns, with increased sunlight and warmer temperatures. The chance of rainfall picks up as well, often causing beautiful spring showers. The pressure subtly decreases and the wind gust speed picks up, adding to the typical springtime weather dynamics. Weather in April »

Weather in May

May brings the right predilection for late spring and early summer with warmer temperatures and increased daylight hours. The likelihood of persistent rain and cloudy days slightly decreases, but scattered showers are still prevalent. Weather in May »

Weather in June

June is a quintessential summer month with the highest temperatures and humidity levels of the year, and noticeably less rainfall than May. The increase in daily sunshine greatly boosts the UV index making summer activities particularly enjoyable. Weather in June »

Weather in July

July’s weather continues to be very warm, despite showing only a modest increase in temperature compared to June. Though the highest temperature marks 90.1°F (32.3°C), nights cool off to around 74.8°F (23.8°C) providing pleasant contrast. Weather in July »

Weather in August

August represents peak summer in Awendaw, with some of the highest temperatures of the year. The daily sunshine duration decreases slightly compared to July, leading to more cloudy days. However, it still remains as one of the warmest months, ideal for outdoor activities and water sports. Weather in August »

Weather in September

September ushers in the end of summer with slightly cooler temperatures compared to August, and a noticeable decrease in daylight hours. The amount of daily sunshine sees a significant reduction, while breeze gusts become stronger. Weather in September »

Weather in October

October bears witness to a considerable drop in temperature, highlighting the arrival of autumn. The skies stay clear more frequently than during September, with lesser rainfall, facilitating a variety of outdoor activities. Days become noticeably shorter, and temperatures begin to dip sharply as we bid goodbye to the summer heat. Weather in October »

Weather in November

As we plunge into late autumn in November, a significant drop in temperature and decrease in daylight hours are experienced. The chance of rain falls substantially compared to the wetter summer months. The weather turns noticeably chillier, with the highest temperatures falling at 65.3°F (18.5°C) and the lowest nighttime temperatures sinking to 49.1°F (9.5°C), making November a calm prelude to winter. November comes with a decrease in the average high-temperature, falling from a moderately hot 75.6°F (24.2°C) in October to an enjoyable 65.3°F (18.5°C). Weather in November »

Weather in December

December is the coolest month with the lowest temperatures of the year, marking a stark change from the warmer months. The daylight hours and sunshine are at a yearly low, while the snowfall, although infrequent, is possible and the relative humidity jumps. Weather in December »
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

In Awendaw, January is the month with the lowest recorded average temperatures, measuring a high of 55.8°F (13.2°C) and a low of 40.8°F (4.9°C).

What are the least humid months?

January and March, with an average relative humidity of 74%, are the least humid months in Awendaw.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 10.8 days and typically collects 1.46" (37mm) of precipitation.

How many days does it rain?

In Awendaw, during the entire year, the rain falls for 179.5 days and collects up to 40.79" (1036mm) of precipitation.

When does it snow?

January, February and December are months with snowfall in Awendaw.

How many days does it snow?

In Awendaw, during the entire year, snow falls for 1 days and aggregates up to 0.31" (8mm) of snow.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 3, are months with the lowest UV index.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 0.3 days and typically aggregates up to 0.24" (6mm) of snow.

When it does not snow?

In Awendaw, snow does not fall in March through November.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

When are the longest days?

June has the longest days of the year, with an average of 14h and 18min of daylight.

What is the month with the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 7.

What part of the year is the hottest?

With average high temperatures of 90.1°F (32.3°C) and lows of 74.8°F (23.8°C), July is the warmest month.

What month has the most sunshine?

With an average of 11.1h of sunshine, July has the most sunshine of the year.

What are the most humid months?

August and December, with an average relative humidity of 78%, are most humid months.

What is the rainiest month in Awendaw?

The month with the most rainfall is August, when the rain falls for 23.2 days and typically aggregates up to 6.46" (164mm) of precipitation.

What is the month with the shortest days?

With an average of 10h and 0min of daylight, December has the shortest days of the year.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.7h of sunshine.

Average temperature
Awendaw, SC

Average temperature - Awendaw, SC

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (55.8°F).

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

Average pressure
Awendaw, SC

Average pressure - Awendaw, SC

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed
Awendaw, SC

Average wind speed - Awendaw, SC

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity
Awendaw, SC

Average humidity - Awendaw, SC

The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).

Average rainfall
Awendaw, SC

Average rainfall - Awendaw, SC

The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days
Awendaw, SC

Average rainfall days - Awendaw, SC

The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).

Average snowfall
Awendaw, SC

Average snowfall - Awendaw, SC

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days
Awendaw, SC

Average snowfall days - Awendaw, SC

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight / Average sunshine
Awendaw, SC

Average daylight / Average sunshine - Awendaw, SC

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days
Awendaw, SC

Average sunshine days - Awendaw, SC

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).

Average visibility
Awendaw, SC

Average visibility - Awendaw, SC

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).

Awendaw, South Carolina, USA

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