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 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 is the coldest month of the year, registering average temperatures as high as 81.3°F (27.4°C) and as low as 73.8°F (23.2°C).Heat index
During January, the heat index is estimated at a tropical 86°F (30°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
In January, the average relative humidity is 76%.Rainfall
The month with the least rainfall in Hormigueros is January, when the rain falls for 13.5 days and typically collects 0.67" (17mm) of precipitation.Daylight
The average length of the day in January is 11h and 11min.On the first day of the month, sunrise is at 6:59 am and sunset at 6:03 pm. On the last day of January, sunrise is at 7:01 am and sunset at 6:22 pm AST.
Sunshine
In Hormigueros, the average sunshine in January is 9.4h.UV index
January, February and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 6 translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What are the temperatures in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Hormigueros, PR
- Average high temperature in January: 81.3°F
The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is January (81.3°F).
- Average low temperature in January: 73.8°F
The months with the highest average low temperature are July and August (78.8°F).
The coldest month (with the lowest average low temperature) is February (73.4°F).
Average pressure in January
Hormigueros, PR
- Average pressure in January: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.01"Hg).
The month with the lowest atmospheric pressure is October (29.89"Hg).
Average wind speed in January
Hormigueros, PR
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is July (8.7mph).
The calmest months (with the lowest average wind speed) are October and November (7mph).
Average humidity in January
Hormigueros, PR
- Average humidity in January: 76%
The month with the highest relative humidity is November (78%).
The month with the lowest relative humidity is March (74%).
Average rainfall in January
Hormigueros, PR
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is September (3.58").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in January
Hormigueros, PR
- Average rainfall days in January: 13.5 days
The month with the highest number of rainy days is May (24.3 days).
The month with the least rainy days is January (13.5 days).
Average daylight in January /
Average sunshine in January
Hormigueros, PR
- Average daylight in January: 11h and 1min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in January: 9h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days in January
Hormigueros, PR
- Average sunshine days in January: 13.5 days
The month with the most sunshine days is January (13.5 days).
The month with the least sunshine days is May (4.7 days).
Average UV index in January
Hormigueros, PR
- Average UV index in January: 6
The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February and December (UV index 6).
Average cloud cover in January
Hormigueros, PR
- Average cloud cover in January: 20
The month with the most cloud cover is May (Cloud cover 28).
The months with the least cloud cover are January, February and December (Cloud cover 20).
Average visibility in January
Hormigueros, PR
- 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).
Hormigueros, Puerto Rico, USA
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