January weather forecast
Rehoboth Beach, DE

Share

Weather in January

The new year at Rehoboth Beach, Delaware commences with winter weather. January can be quite cold, with the lowest temperature dropping to 33.1°F (0.6°C) and the highest barely crossing 41.4°F (5.2°C). Characterized by cloudy days and an average of 5.7 days with rain, the city feels the grip of winter. While snowfall occurs, it is minimal. The combination of cold, wet weather and shorter days makes January a quiet time in Rehoboth Beach, Delaware.

Temperature

Rehoboth Beach's coldest weather arrives in January, when temperatures average a high of 41.4°F (5.2°C) and a low of 33.1°F (0.6°C).

Humidity

In Rehoboth Beach, the average relative humidity in January is 74%.

Rainfall

In Rehoboth Beach, in January, it is raining for 5.7 days, with typically 0.31" (8mm) of accumulated precipitation. In Rehoboth Beach, during the entire year, the rain falls for 89.4 days and collects up to 6.18" (157mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. The months with the most snowfall are January and December, with an average 0.12" (3mm) of accumulated snow.

Daylight

In January, the average length of the day is 9h and 49min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:49 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:20 pm EST.

Sunshine

In January, the average sunshine is 5.5h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In January, a daily UV index of 2 turns into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Rehoboth Beach?

During the coldest month in Rehoboth Beach, January, temperatures average a high of 41.4°F (5.2°C) and a low of 33.1°F (0.6°C).

How cold is January in Rehoboth Beach?

An average high-temperature, in January, in Rehoboth Beach, is 41.4°F (5.2°C) and the average low-temperature is 33.1°F (0.6°C).

What is the average humidity in January in Rehoboth Beach?

The average relative humidity in January in Rehoboth Beach, Delaware, is 74%.

How many days does it rain in January in Rehoboth Beach?

In Rehoboth Beach, Delaware, during January, the rain falls for 5.7 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When does it snow the most in Rehoboth Beach?

The months with the most snowfall in Rehoboth Beach are January and December, with an average 0.12" (3mm) of accumulated snow.

How many days does it snow in January in Rehoboth Beach?

In January, it is snowing for 2.4 days. Throughout January, 0.12" (3mm) of snow is accumulated.

How many hours of daylight does Rehoboth Beach have in January?

In January, the average day length is 9h and 49min.

When is the sunrise / sunset in January in Rehoboth Beach?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:49 pm. On the last day of the month, in Rehoboth Beach, Delaware, sunrise is at 7:07 am and sunset at 5:20 pm EST.

How long on average sun shines in January in Rehoboth Beach?

The average sunshine duration in January in Rehoboth Beach, Delaware, is 5.5h.

What are the months with the lowest UV index in Rehoboth Beach?

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

What is the UV index intensity in January in Rehoboth Beach?

The average daily maximum UV index in January in Rehoboth Beach is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Rehoboth Beach, DE

Average temperature in January - Rehoboth Beach, DE
  • Average high temperature in January: 41.4°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in January: 33.1°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

Average pressure in January
Rehoboth Beach, DE

Average pressure in January - Rehoboth Beach, DE
  • Average pressure in January: 30.09"Hg

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 in January
Rehoboth Beach, DE

Average wind speed in January - Rehoboth Beach, DE
  • Average wind speed in January: 13mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

Average humidity in January
Rehoboth Beach, DE

Average humidity in January - Rehoboth Beach, DE
  • Average humidity in January: 74%

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

Average rainfall in January
Rehoboth Beach, DE

Average rainfall in January - Rehoboth Beach, DE
  • Average rainfall in January: 0.31"

The wettest month (with the highest rainfall) is October (0.71").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days in January
Rehoboth Beach, DE

Average rainfall days in January - Rehoboth Beach, DE
  • Average rainfall days in January: 5.7 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is November (4.9 days).

Average snowfall in January
Rehoboth Beach, DE

Average snowfall in January - Rehoboth Beach, DE
  • Average snowfall in January: 0.12"

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Rehoboth Beach, DE

Average snowfall days in January - Rehoboth Beach, DE
  • Average snowfall days in January: 2.4 days

The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Rehoboth Beach, DE

Average daylight in January / Average sunshine in January - Rehoboth Beach, DE
  • Average daylight in January: 9h and 5min

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).

  • Average sunshine in January: 5h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in January
Rehoboth Beach, DE

Average sunshine days in January - Rehoboth Beach, DE
  • Average sunshine days in January: 23.5 days

The month with the most sunshine days is January (23.5 days).
The months with the least sunshine days are June and July (18.2 days).

Average UV index in January
Rehoboth Beach, DE

Average UV index in January - Rehoboth Beach, DE
  • Average UV index in January: 2

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, February and December (UV index 2).

Average cloud cover in January
Rehoboth Beach, DE

Average cloud cover in January - Rehoboth Beach, DE
  • Average cloud cover in January: 41

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 24).

Average visibility in January
Rehoboth Beach, DE

Average visibility in January - Rehoboth Beach, DE
  • 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).

Rehoboth Beach, Delaware, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location