January weather forecastConstant Spring, Jamaica
January
Weather in January
January in Constant Spring, Jamaica, marks the commencement of the year with pleasant climatic conditions. The temperature in January fluctuates between 21.7°C (71.1°F) and 27.3°C (81.1°F). It promises to be a suitable period for outdoor activities as the delightful weather, coupled with an average daylight of 11.2 hours, ensures ample time for sightseeing. It is slightly colder and drier than February, with an average rainfall of 52mm (2.05") over 23.9 days. The visibility remains at a maximum distance of 10km (6.2mi), enabling unobstructed views of the city's scenic landscapes.Temperature
Constant Spring experiences lowest temperatures, averaging a high-temperature of 27.3°C (81.1°F) during January and February.Heat index
During January, the heat index is estimated at a tropical 30°C (86°F). If one remains active during constant exposure, it might cause exhaustion and heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In January, the average relative humidity is 80%.Rainfall
In January, the rain falls for 23.9 days. Throughout January, 52mm (2.05") of precipitation is accumulated. Throughout the year, there are 310.9 rainfall days, and 1286mm (50.63") of precipitation is accumulated.Daylight
In Constant Spring, the average length of the day in January is 11h and 11min.On the first day of January in Constant Spring, Jamaica, sunrise is at 06:38 and sunset at 17:42. On the last day of the month, sunrise is at 06:40 and sunset at 18:00 EST.
Sunshine
In Constant Spring, the average sunshine in January is 6.8h.UV index
The months with the lowest UV index in Constant Spring are January through May, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 6 in January translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Constant Spring, Jamaica
- Average high temperature in January: 27.3°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The months with the lowest average high temperature are January and February (27.3°C).
- Average low temperature in January: 21.7°C
The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is February (21.6°C).
Average pressure in January
Constant Spring, Jamaica
- Average pressure in January: 1015.5mbar
The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is October (1011.5mbar).
Average wind speed in January
Constant Spring, Jamaica
- Average wind speed in January: 10.5km/h
The windiest month (with the highest average wind speed) is June (12.8km/h).
The calmest month (with the lowest average wind speed) is November (8.6km/h).
Average humidity in January
Constant Spring, Jamaica
- Average humidity in January: 80%
The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is March (78%).
Average rainfall in January
Constant Spring, Jamaica
- Average rainfall in January: 52mm
The wettest month (with the highest rainfall) is October (184mm).
The driest month (with the least rainfall) is February (44mm).
Average rainfall days in January
Constant Spring, Jamaica
- Average rainfall days in January: 23.9 days
The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is February (22.1 days).
Average daylight in January /
Average sunshine in January
Constant Spring, Jamaica
- Average daylight in January: 11h and 12min
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: 6h and 48min
The months with the most sunshine are August and September (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in January
Constant Spring, Jamaica
- Average sunshine days in January: 3.4 days
The month with the most sunshine days is January (3.4 days).
The month with the least sunshine days is August (0.3 days).
Average UV index in January
Constant Spring, Jamaica
- Average UV index in January: 6
The months with the highest UV index are June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, November and December (UV index 6).
Average cloud cover in January
Constant Spring, Jamaica
- Average cloud cover in January: 33
The month with the most cloud cover is June (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in January
Constant Spring, Jamaica
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, June, July, November and December (10km).
The months with the lowest visibility are May, August, September and October (9km).
