Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, with its high-temperature average of 72.7°F (22.6°C) and a low-temperature average of 66.9°F (19.4°C), is the coldest month.Humidity
In Islamorada, the average relative humidity in January is 75%.Rainfall
In Islamorada, in January, during 10.7 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 190.1 rainfall days, and 27.05" (687mm) of precipitation is accumulated.Ocean temperature
January and February, with an average ocean temperature of 73.9°F (23.3°C), are months with the coldest seawater.Note: If you're wary of the cold, the surrounding conditions—sunshine, wind, and air temperature become crucial when swimming in 73.9°F (23.3°C) waters. Olympic standards, for reference, are set between 77°F (25°C) and 82.4°F (28°C).
Daylight
In January, the average length of the day is 10h and 48min.On the first day of the month, sunrise is at 7:07 am and sunset at 5:44 pm. On the last day of January, sunrise is at 7:05 am and sunset at 6:06 pm EST.
Sunshine
The average sunshine in January in Islamorada is 6.7h.UV index
With an average maximum UV index of 5, January is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In January, a daily UV index of 5 turns into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take note! Sand and water reflections strengthen the Sun's UV exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the temperature in January in Islamorada?
What is the average humidity in January in Islamorada?
How many days does it rain in January?
What are the months with the coldest ocean?
What is the water temperature in January?
How many hours of daylight does Islamorada have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Islamorada have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Islamorada, FL
- Average high temperature in January: 72.7°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.7°F).
- Average low temperature in January: 66.9°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (66.9°F).
Average pressure in January
Islamorada, FL
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).
Average wind speed in January
Islamorada, FL
- Average wind speed in January: 12.9mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in January
Islamorada, FL
- Average humidity in January: 75%
The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).
Average rainfall in January
Islamorada, FL
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").
Average rainfall days in January
Islamorada, FL
- Average rainfall days in January: 10.7 days
The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).
Average sea temperature in January
Islamorada, FL
- Average sea temperature in January: 73.9°F
The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).
Average daylight in January /
Average sunshine in January
Islamorada, FL
- Average daylight in January: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January: 6h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in January
Islamorada, FL
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).
Average UV index in January
Islamorada, FL
- Average UV index in January: 5
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in January
Islamorada, FL
- Average cloud cover in January: 34
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in January
Islamorada, 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).
Islamorada, Florida, USA
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