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
In Ulster Spring, Jamaica, the month of January is known for its lowest average temperatures, reaching a high of 27°C (80.6°F) and a low of 18.8°C (65.8°F).Heat index
January's heat index is estimated at a tropical 30°C (86°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in January in Ulster Spring, Jamaica, is 83%.Rainfall
The month with the least rainfall in Ulster Spring is January, when the rain falls for 22.1 days and typically collects 56mm (2.2") of precipitation.Daylight
In Ulster Spring, the average length of the day in January is 11h and 11min.On the first day of January, sunrise is at 06:41 and sunset at 17:45. On the last day of the month, sunrise is at 06:43 and sunset at 18:03 EST.
Sunshine
In January, the average sunshine is 6.8h.UV index
In Ulster Spring, the average daily maximum UV index in January is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 6 in January transforms into this advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full 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
What month is the coldest in Ulster Spring?
What is the usual temperature for Ulster Spring in January?
What is the average humidity in January in Ulster Spring?
What is the driest month in Ulster Spring?
How many days does it rain in January in Ulster Spring?
How many hours of daylight does Ulster Spring have in January?
What time are sunrise and sunset in January in Ulster Spring?
How many hours of sunshine does Ulster Spring have in January?
What is the UV index intensity in January in Ulster Spring?
Average temperature in January
Ulster Spring, Jamaica
- Average high temperature in January: 27°C
The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (27°C).
- Average low temperature in January: 18.8°C
The month with the highest average low temperature is August (21.9°C).
The coldest month (with the lowest average low temperature) is February (18.6°C).
Average pressure in January
Ulster 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
Ulster Spring, Jamaica
- Average wind speed in January: 7.5km/h
The windiest month (with the highest average wind speed) is June (9.4km/h).
The calmest month (with the lowest average wind speed) is November (6.2km/h).
Average humidity in January
Ulster Spring, Jamaica
- Average humidity in January: 83%
The month with the highest relative humidity is October (87%).
The months with the lowest relative humidity are March and July (81%).
Average rainfall in January
Ulster Spring, Jamaica
- Average rainfall in January: 56mm
The wettest month (with the highest rainfall) is October (228mm).
The driest month (with the least rainfall) is January (56mm).
Average rainfall days in January
Ulster Spring, Jamaica
- Average rainfall days in January: 22.1 days
The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is June (21.1 days).
Average daylight in January /
Average sunshine in January
Ulster Spring, 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 6min).
- Average sunshine in January: 6h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in January
Ulster Spring, Jamaica
- Average sunshine days in January: 5.6 days
The month with the most sunshine days is June (7.6 days).
The months with the least sunshine days are September and November (1.9 days).
Average UV index in January
Ulster Spring, Jamaica
- Average UV index in January: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is October (UV index 5).
Average cloud cover in January
Ulster Spring, Jamaica
- Average cloud cover in January: 44
The months with the most cloud cover are May and November (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in January
Ulster Spring, Jamaica
- Average visibility in January: 7km
The months with the highest visibility are March, June, July and August (8km).
The months with the lowest visibility are November and December (6km).
