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
January
Weather in January
Temperature
As Green Island transitions from December to January, the average high-temperatures adjust to a still moderately hot 27.3°C (81.1°F), nearly the same as the previous 27.9°C (82.2°F). January's average low-temperature in Green Island is a still moderately hot 24.9°C (76.8°F), reflecting a minor difference from the day's peak temperatures.Heat index
In January, the average heat index is estimated at a tropical 30°C (86°F). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In January, the average relative humidity in Green Island is 74%.Rainfall
In Green Island, during January, the rain falls for 14.5 days and regularly aggregates up to 36mm (1.42") of precipitation. In Green Island, during the entire year, the rain falls for 236.8 days and collects up to 822mm (32.36") of precipitation.Daylight
In January, the average length of the day is 11h and 10min.On the first day of January, sunrise is at 06:45 and sunset at 17:48. On the last day of the month, sunrise is at 06:46 and sunset at 18:06 EST.
Sunshine
In Green Island, Jamaica, the average sunshine in January is 8h.UV index
The months with the highest UV index in Green Island are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 7 in January, converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Green Island in January?
What is the average humidity in January in Green Island?
How much does it rain in Green Island in January?
How many hours of daylight does Green Island have in January?
When is the sunrise / sunset in January in Green Island?
How many hours of sunshine does Green Island have in January?
When is the highest UV index in Green Island?
When is the lowest UV index in Green Island?
What is the UV index reading in January in Green Island?
Average temperature in January
Green Island, Jamaica
- Average high temperature in January: 27.3°C
The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is February (27.1°C).
- Average low temperature in January: 24.9°C
The month with the highest average low temperature is September (27.9°C).
The coldest months (with the lowest average low temperature) are February and March (24.8°C).
Average pressure in January
Green Island, Jamaica
- Average pressure in January: 1015.4mbar
The month with the highest atmospheric pressure is January (1015.4mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).
Average wind speed in January
Green Island, Jamaica
- Average wind speed in January: 17.6km/h
The windiest month (with the highest average wind speed) is December (18.5km/h).
The calmest month (with the lowest average wind speed) is September (11.7km/h).
Average humidity in January
Green Island, Jamaica
- Average humidity in January: 74%
The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is March (73%).
Average rainfall in January
Green Island, Jamaica
- Average rainfall in January: 36mm
The wettest month (with the highest rainfall) is October (112mm).
The driest months (with the least rainfall) are February and March (29mm).
Average rainfall days in January
Green Island, Jamaica
- Average rainfall days in January: 14.5 days
The month with the highest number of rainy days is May (24.3 days).
The month with the least rainy days is February (14.2 days).
Average daylight in January /
Average sunshine in January
Green Island, Jamaica
- 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 0min).
- Average sunshine in January: 8h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in January
Green Island, Jamaica
- Average sunshine days in January: 11.6 days
The month with the most sunshine days is January (11.6 days).
The month with the least sunshine days is May (3.2 days).
Average UV index in January
Green Island, Jamaica
- Average UV index in January: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in January
Green Island, Jamaica
- Average cloud cover in January: 20
The month with the most cloud cover is May (Cloud cover 26).
The month with the least cloud cover is December (Cloud cover 19).
Average visibility in January
Green Island, Jamaica
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
