Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
October
Weather in October
Temperature
Castleton ushers in October with an average high-temperature of a still tropical 30.3°C (86.5°F), showing a close resemblance to the previous month. The mean low-temperature during October nights is a warm 23.1°C (73.6°F).Heat index
The average heat index in October is computed to be a sweltering 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.Consider that heat index readings are for situations in the shade and light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The months with the highest humidity are October through December, with an average relative humidity of 81%.Rainfall
The month with the most rainfall is October, when the rain falls for 26.5 days and typically aggregates up to 123mm (4.84") of precipitation.Daylight
In October, the average length of the day in Castleton is 11h and 43min.On the first day of the month, sunrise is at 05:57 and sunset at 17:55. On the last day of October, sunrise is at 06:06 and sunset at 17:35 EST.
Sunshine
In October, the average sunshine is 7.1h.UV index
The months with the highest UV index in Castleton are May through August and October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 7 during October, leads to the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in October?
What is the most humid month?
What is the average humidity in October?
What is the rainiest month?
How much does it rain in October?
How many hours of daylight does Castleton have in October?
When is the sunrise / sunset in October in Castleton?
How long on average sun shines in October?
When is the highest UV index?
How high is the UV index in October?
Average temperature in October
Castleton, Jamaica
- Average high temperature in October: 30.3°C
The warmest months (with the highest average high temperature) are July and August (31.7°C).
The month with the lowest average high temperature is January (28.4°C).
- Average low temperature in October: 23.1°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in October
Castleton, Jamaica
- Average pressure in October: 1011.5mbar
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 October
Castleton, Jamaica
- Average wind speed in October: 6.7km/h
The windiest month (with the highest average wind speed) is June (9km/h).
The calmest month (with the lowest average wind speed) is November (6.6km/h).
Average humidity in October
Castleton, Jamaica
- Average humidity in October: 81%
The months with the highest relative humidity are October, November and December (81%).
The months with the lowest relative humidity are March, July and August (77%).
Average rainfall in October
Castleton, Jamaica
- Average rainfall in October: 123mm
The wettest month (with the highest rainfall) is October (123mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in October
Castleton, Jamaica
- Average rainfall days in October: 26.5 days
The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is February (19.2 days).
Average daylight in October /
Average sunshine in October
Castleton, Jamaica
- Average daylight in October: 11h and 4min
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 October: 7h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in October
Castleton, Jamaica
- Average sunshine days in October: 1.5 days
The month with the most sunshine days is January (6 days).
The month with the least sunshine days is October (1.5 days).
Average UV index in October
Castleton, Jamaica
- Average UV index in October: 7
The months with the highest UV index are May, June, July, August and October (UV index 7).
The months with the lowest UV index are January, February, March, April, September, November and December (UV index 6).
Average cloud cover in October
Castleton, Jamaica
- Average cloud cover in October: 35
The month with the most cloud cover is June (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in October
Castleton, Jamaica
- Average visibility in October: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
