January weather forecast
Longboat Key, FL

Weather in January

January, like December, is an agreeable winter month in Longboat Key, Florida, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 68.5°F (20.3°C).

Temperature

The coldest month is January, with an average high-temperature of 68.5°F (20.3°C) and an average low-temperature of 56.1°F (13.4°C).

Humidity

In January, the average relative humidity is 73%.

Rainfall

In Longboat Key, Florida, during January, the rain falls for 8.3 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, there are 183.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

Ocean temperature

The month with the coldest seawater is January, with an average ocean temperature of 64°F (17.8°C).
Note: For most, swimming in 64°F (17.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

In January, the average length of the day is 10h and 38min.
On the first day of January in Longboat Key, sunrise is at 7:20 am and sunset at 5:47 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:11 pm EST.

Sunshine

The average sunshine in January is 7.3h.

UV index

The month with the lowest UV index is January, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the coldest month in Longboat Key?

The coldest month in Longboat Key is January, with an average high-temperature of 68.5°F (20.3°C) and an average low-temperature of 56.1°F (13.4°C).

What is the average humidity in January in Longboat Key?

In January, the average relative humidity is 73%.

How many days does it rain in January in Longboat Key?

In January, the rain falls for 8.3 days. Throughout January, 1.22" (31mm) of precipitation is accumulated.

What is the month with the coldest ocean in Longboat Key?

January is the month with the coldest seawater in Longboat Key, with an average ocean temperature of 64°F (17.8°C).

What is the ocean temperature in January in Longboat Key?

In Longboat Key, Florida, the average seawater temperature in January is 64°F (17.8°C). Swimming in 64°F (17.8°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Longboat Key have in January?

The average day length in January is 10h and 38min.

When is the sunrise / sunset in January in Longboat Key?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 5:47 pm. On the last day of the month, in Longboat Key, Florida, sunrise is at 7:17 am and sunset at 6:11 pm EST.

How many hours of sunshine does Longboat Key have in January?

In Longboat Key, Florida, the average sunshine duration in January is 7.3h.

When is the lowest UV index in Longboat Key?

With an average maximum UV index of 4, January is the month with the lowest UV index in Longboat Key.

What is the UV index intensity in January in Longboat Key?

In Longboat Key, Florida, the average daily maximum UV index in January is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Average temperature in January
Longboat Key, FL

Average temperature in January - Longboat Key, FL
  • Average high temperature in January: 68.5°F

The warmest month (with the highest average high temperature) is August (88.5°F).
The month with the lowest average high temperature is January (68.5°F).

  • Average low temperature in January: 56.1°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).

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Average pressure in January
Longboat Key, FL

Average pressure in January - Longboat Key, FL
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

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Average wind speed in January
Longboat Key, FL

Average wind speed in January - Longboat Key, FL
  • Average wind speed in January: 9.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity in January
Longboat Key, FL

Average humidity in January - Longboat Key, FL
  • Average humidity in January: 73%

The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are March, April and May (72%).

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Average rainfall in January
Longboat Key, FL

Average rainfall in January - Longboat Key, FL
  • Average rainfall in January: 1.22"

The wettest month (with the highest rainfall) is August (6.42").
The driest months (with the least rainfall) are February and November (1.06").

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Average rainfall days in January
Longboat Key, FL

Average rainfall days in January - Longboat Key, FL
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is August (26.8 days).
The months with the least rainy days are January, February and November (8.3 days).

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Average sea temperature in January
Longboat Key, FL

Average sea temperature in January - Longboat Key, FL
  • Average sea temperature in January: 64.1°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.1°F).

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Average daylight in January /
Average sunshine in January
Longboat Key, FL

Average daylight in January / Average sunshine in January - Longboat Key, FL
  • Average daylight in January: 10h and 38min

The month with the longest days is June (Average daylight: 13h and 51min).
The month with the shortest days is December (Average daylight: 10h and 27min).

  • Average sunshine in January: 7h and 18min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in January
Longboat Key, FL

Average sunshine days in January - Longboat Key, FL
  • Average sunshine days in January: 21.1 days

The month with the most sunshine days is January (21.1 days).
The month with the least sunshine days is August (2.5 days).

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Average UV index in January
Longboat Key, FL

Average UV index in January - Longboat Key, FL
  • Average UV index in January: 4

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in January
Longboat Key, FL

Average cloud cover in January - Longboat Key, FL
  • Average cloud cover in January: 30

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 22).

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Average visibility in January
Longboat Key, FL

Average visibility in January - Longboat Key, FL
  • 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).

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