January weather forecast
Myrtle Island, FL

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Weather in January

January, like December, in Myrtle Island, Florida, is another enjoyable winter month, with an average temperature fluctuating between 66.4°F (19.1°C) and 48.7°F (9.3°C).

Temperature

In Myrtle Island, the lowest temperatures are generally noted in January, averaging a high of 66.4°F (19.1°C) and a low of 48.7°F (9.3°C).

Humidity

The average relative humidity in January in Myrtle Island, Florida, is 73%.

Rainfall

January is the month with the least rainfall in Myrtle Island, Florida. Rain falls for 8.5 days and accumulates 0.71" (18mm) of precipitation.

Daylight

The average length of the day in January in Myrtle Island is 10h and 30min.
On the first day of the month, sunrise is at 7:20 am and sunset at 5:37 pm. On the last day of January, in Myrtle Island, sunrise is at 7:15 am and sunset at 6:02 pm EST.

Sunshine

In January, the average sunshine in Myrtle Island is 5.9h.

UV index

January is the month with the lowest UV index, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 4 in January translates into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What are the coldest months in Myrtle Island?

Myrtle Island, Florida, experiences its average lowest temperatures in January, reaching a peak of 66.4°F (19.1°C) and a minimum of 48.7°F (9.3°C).

What is the usual temperature for Myrtle Island in January?

In January, in Myrtle Island, the average high-temperature is 66.4°F (19.1°C), and the average low-temperature is 48.7°F (9.3°C).

What is the average humidity in January in Myrtle Island?

In January, the average relative humidity is 73%.

What is the driest month in Myrtle Island?

January is the month with the least rainfall in Myrtle Island, Florida. Rain falls for 8.5 days and accumulates 0.71" (18mm) of precipitation.

How much does it rain in Myrtle Island in January?

In Myrtle Island, Florida, in January, during 8.5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

What is the average length of the day in January in Myrtle Island?

The average day length in January in Myrtle Island, Florida, is 10h and 30min.

When are sunrise and sunset in January in Myrtle Island?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 5:37 pm. On the last day of the month, in Myrtle Island, sunrise is at 7:15 am and sunset at 6:02 pm EST.

How many hours of sunshine does Myrtle Island have in January?

The average sunshine duration in January is 5.9h.

When is the lowest UV index in Myrtle Island?

January is the month with the lowest UV index, with an average maximum UV index of 4.

What is the UV index intensity in January in Myrtle Island?

In January, the average daily maximum UV index in Myrtle Island, Florida, is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Myrtle Island, FL

Average temperature in January - Myrtle Island, FL
  • Average high temperature in January: 66.4°F

The warmest month (with the highest average high temperature) is August (92.3°F).
The month with the lowest average high temperature is January (66.4°F).

  • Average low temperature in January: 48.7°F

The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

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Average pressure in January
Myrtle Island, FL

Average pressure in January - Myrtle Island, FL
  • Average pressure in January: 30.14"Hg

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

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Average wind speed in January
Myrtle Island, FL

Average wind speed in January - Myrtle Island, FL
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is July (4mph).

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Average humidity in January
Myrtle Island, FL

Average humidity in January - Myrtle Island, FL
  • Average humidity in January: 73%

The months with the highest relative humidity are July, August and September (77%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in January
Myrtle Island, FL

Average rainfall in January - Myrtle Island, FL
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is July (2.68").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in January
Myrtle Island, FL

Average rainfall days in January - Myrtle Island, FL
  • Average rainfall days in January: 8.5 days

The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is November (8 days).

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Average daylight in January /
Average sunshine in January
Myrtle Island, FL

Average daylight in January / Average sunshine in January - Myrtle Island, FL
  • Average daylight in January: 10h and 3min

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

  • Average sunshine in January: 5h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in January
Myrtle Island, FL

Average sunshine days in January - Myrtle Island, FL
  • 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 (8.6 days).

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Average UV index in January
Myrtle Island, FL

Average UV index in January - Myrtle Island, FL
  • Average UV index in January: 4

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 4).

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Average cloud cover in January
Myrtle Island, FL

Average cloud cover in January - Myrtle Island, FL
  • Average cloud cover in January: 39

The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is May (Cloud cover 32).

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Average visibility in January
Myrtle Island, FL

Average visibility in January - Myrtle Island, FL
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).

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Myrtle Island, Florida, USA

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