Climate and monthly weather forecast
Bethany Beach, DE

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The climate of Bethany Beach

Perched along the verdant coast of Delaware, USA, Bethany Beach conforms to the Cfa, Köppen climate classification, indicating a humid subtropical climate, where a dry season is intangible. Bethany Beach experiences a moderate seasonal variation in temperatures throughout the year, coupled with a consistent pattern of substantial rainfall.

The annual average high temperatures exist between 41.7°F (5.4°C) and 79.7°F (26.5°C), providing the region with a temperate to the fairly warm ambiance. Following a parallel pattern, the average low temperatures range from 33.4°F (0.8°C) to 73.9°F (23.3°C), with a noticeable dip in temperature during nights throughout the year.

Humidity instils a moist undertone to the weather, with an average relative humidity varying between 73% and 82%. Correspondingly, the region witnesses a heavy precipitation, with average monthly rainfall peaking at 2.68" (68mm) during August and at the lower end, measuring 1.38" (35mm) in January.

Snowfall is not a common feat in this coastal city. Confining chiefly to the winter months, it’s minimal and mostly negligible, with a maximum average snowfall of 0.55" (14mm) in January. The prevalence of snowfall days is similarly low, with an average of 2.8 days in January.

The sunny disposition of Bethany Beach, revealed in its daylight hours, varies from 9.8 hours in January to 14.8 hours during June. Despite this, the calculated average sunshine hours per day range from 5 to 10.9 hours, indicating that the region receives a fair amount of sunlight throughout the day.

Bethany Beach is also adorned with an average of 18.4 sunshiny days during November and December. The UV index plot follows a predictable curve across the year, although the warm months register a higher value at 6.

The best time to visit Bethany Beach

Ascertaining the excellent time to visit Bethany Beach, the months from May to September showcase the optimum weather for outdoor activities. During this period, average high temperatures tap into a comfortable range from 65.1°F (18.4°C) to 79.7°F (26.5°C), while average low temperatures span between 59°F (15°C) to 73.9°F (23.3°C), presenting a pleasant and mild weather which is ideal for beach-goers.

The worst time to visit Bethany Beach

While January may be considered the least favorable time to visit, the colder temperatures and periodic snowfall between 33.4°F (0.8°C) to 41.7°F (5.4°C) can deter the beach-related and open-air activities.

Spring weather in Bethany Beach

Spring at Bethany Beach, ranging from March to May, witnesses a gradual rise in temperatures with highs from 47.7°F (8.7°C) to 65.1°F (18.4°C) and lows from 40.3°F (4.6°C) to 59°F (15°C), providing a refreshing feel. The predicted increase in average rainfall, from 1.93" (49mm) in March to 2.05" (52mm) in May, adds a lush vitality to the locale.

Summer weather in Bethany Beach

Summer, extending from June to August, is the sun-drenched season in Bethany Beach. High temperatures range from 74.5°F (23.6°C) to 79.7°F (26.5°C) with a minimal decrease during the night with lows from 68°F (20°C) to 73.9°F (23.3°C). Despite the increase in rainfall, up to 2.68" (68mm) in August, average daily sunshine hours reach up to 10.9 hours, offering aplenty daylight for various activities.

Autumn weather in Bethany Beach

Autumn, rolling in from September to November, sees a consistent decrease in temperature with highs from 74.3°F (23.5°C) to 55°F (12.8°C) and lows from 68.9°F (20.5°C) to 47.5°F (8.6°C). Rainfall measurements rise to 2.52" (64mm) in October, maintaining the humidity levels. Sunshine hours endure a natural decline, setting a softer light during the day.

Winter weather in Bethany Beach

During winter, from December to February, Bethany Beach experiences the coolest months. Average high temperatures drop to between 41.7°F (5.4°C) to 43.2°F (6.2°C) while lows stoop between 33.4°F (0.8°C) to 35.2°F (1.8°C). While rainfall maintains a steady pattern, snowfall emerges but remains negligible. Despite the dip in temperatures, the region maintains a considerable number of sunlit hours ranging 9.8 hours and 10.8 hours during the said months.

Weather in January

In Bethany Beach, the New Year begins with chilly weather to match the cool Atlantic Ocean. A pressure of 30.09" (764mm) sets the stage for crisp, clear skies. The month's weather is characterized by the average high temperature of 41.7°F (5.4°C) and an average low of 33.4°F (0.8°C). Weather in January »

Weather in February

The winter weather at Bethany Beach continues into February, albeit slightly warmer than the previous month. The temperatures range from a warmer 35.2°F (1.8°C) in lows to 43.2°F (6.2°C) in highs. Relative humidity measures around 75%, often lending a slight dampness to the crisp air. Weather in February »

Weather in March

Transitioning into spring, March in Bethany Beach presents a noticeable change in the weather. March stands out with the highest rainfall at 1.93" (49mm), indicative of the beginning of the spring showers. The rise in daylight hours to 12 and an increased UV index of 3 mark the farewell to winter. Weather in March »

Weather in April

With the arrival of April, Bethany Beach fully embraces spring's warmth and charm. Moving from the cold 40s into the 50s, with an average high reaching 56.7°F (13.7°C), it's a significant shift in the weather. More rainfall contributes to the lush greenery that becomes more prominent during this period. Weather in April »

Weather in May

May sets the stage for the impending summer season in Bethany Beach. The most notable characteristic of Weather in May is the nearly uniform daylight hours of 14.3 and extended periods of sunshine for 9.2 hours. The air buzzes with a warm glow as temperatures rise into the mid-60s. Weather in May »

Weather in June

With the official start of summer, June in Bethany Beach is marked by pleasant weather and sunny skies. Temperatures settle between 65.1°F (18.4°C) and 74.5°F (23.6°C), providing an ideal climate for beach activities. As humidity hovers around 80%, visitors are advised to keep hydrated. Weather in June »

Weather in July

July hosts the height of summer at Bethany Beach. A wind speed of 9.4mph (15.1km/h), the lowest of the year, complements the heat. Temperatures can soar as high as 79.7°F (26.5°C), marking this month as the hottest all year. The community partners with weather conditions to treat vacationers and locals to various outdoor activities. Weather in July »

Weather in August

Bethany Beach continues to bake under the August sun, with an average high temperature reaching 79.3°F (26.3°C). Sunshine lasts for approximately 10.6 hours, bathing the town in warm, golden light. Rising humidity levels deliver a typical summer feel, while the continuous light sea breeze provides occasional relief. Weather in August »

Weather in September

As summer transitions into autumn, September delivers a reprieve from Bethany Beach heat. A significant decrease in rainfall to 1.77" (45mm) indicates the gradual shift to drier months. However, temperatures remain on the higher side, ensuring the beach stays busy with tourists trying to squeeze in their summer fun. Weather in September »

Weather in October

In Bethany Beach, the arrival of October brings marked changes in the weather composition. Adjusting itself to the mid-autumn feel, temperatures dial down with average high temperatures dipping to 65.5°F (18.6°C). As daylight decreases gradually, the charm of golden evenings captures the aesthetic appeal of the beach town. Weather in October »

Weather in November

As Bethany Beach readies itself for winter, November witnesses a shift to colder temperatures. The average temperature in November ranges from a chilly 47.5°F (8.6°C) to a mild 55°F (12.8°C). Besides the cooling trend, less daylight time indicates the nearing winter solstice. Weather in November »

Weather in December

As the last month of the year, December at Bethany Beach brings a winter chill, with an average low dropping to 40.1°F (4.5°C). An increase in snowfall with 0.2" (5mm) of snow provides a chance of a white Christmas. The winds are sharp and biting, reaching up to 14mph (22.5km/h), adding to the winter cold. Weather in December »
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Bethany Beach's coldest temperatures are experienced in January, with average high temperatures of 41.7°F (5.4°C) and lows of 33.4°F (0.8°C).

What is the driest month in Bethany Beach?

The month with the least rainfall is January, when the rain falls for 8.5 days and typically collects 1.38" (35mm) of precipitation.

How many days does it rain?

Throughout the year, there are 147.8 rainfall days, and 23.98" (609mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through March and December.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 2.8 days and typically aggregates up to 0.55" (14mm) of snow.

How much does it snow?

Throughout the year, there are 8.7 snowfall days, and 1.54" (39mm) of snow is accumulated.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 5h of sunshine.

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 it does not snow?

In Bethany Beach, snow does not fall in April through November.

What is the most humid month?

The most humid month is May, with an average relative humidity of 82%.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

When are the longest days?

June has the longest days of the year, with an average of 14h and 48min of daylight.

What is the hottest time of year?

In Bethany Beach, July is known for its average highest temperatures, reaching a high of 79.7°F (26.5°C) and a low of 73.9°F (23.3°C).

What month has the most sunshine in Bethany Beach?

July has the most sunshine of the year, with an average of 10.9h of sunshine.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 15.3 days and accumulates 2.68" (68mm) of precipitation.

What is the least humid month?

With an average relative humidity of 73%, November is the least humid month in Bethany Beach.

What is the month with the shortest days in Bethany Beach?

With an average of 9h and 30min of daylight, December has the shortest days of the year.
Today
Tomorrow
Long-term
YearJFMAMJJASOND

Average temperature
Bethany Beach, DE

Average temperature - Bethany Beach, DE

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (41.7°F).

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

Average pressure
Bethany Beach, DE

Average pressure - Bethany Beach, DE

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Bethany Beach, DE

Average wind speed - Bethany Beach, DE

The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

Average humidity
Bethany Beach, DE

Average humidity - Bethany Beach, DE

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

Average rainfall
Bethany Beach, DE

Average rainfall - Bethany Beach, DE

The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is January (1.38").

Average rainfall days
Bethany Beach, DE

Average rainfall days - Bethany Beach, DE

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is January (8.5 days).

Average snowfall
Bethany Beach, DE

Average snowfall - Bethany Beach, DE

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days
Bethany Beach, DE

Average snowfall days - Bethany Beach, DE

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Bethany Beach, DE

Average daylight / Average sunshine - Bethany Beach, DE

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days
Bethany Beach, DE

Average sunshine days - Bethany Beach, DE

The months with the most sunshine days are January and November (18.4 days).
The month with the least sunshine days is August (13.2 days).

Average UV index
Bethany Beach, DE

Average UV index - Bethany Beach, DE

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover
Bethany Beach, DE

Average cloud cover - Bethany Beach, DE

The months with the most cloud cover are February, March and December (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility
Bethany Beach, DE

Average visibility - Bethany Beach, DE

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).

Bethany Beach, Delaware, USA

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