Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
July
Weather in July
Temperature
The warmest period falls in July and August, when the average high-temperature reaches 31.7°C (89.1°F).Heat index
In July, the heat index is computed to be a scorching 42°C (107.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
March, July and August, with an average relative humidity of 77%, are the least humid months.Rainfall
In July, the rain falls for 21.2 days. Throughout July, 84mm (3.31") of precipitation is accumulated. In Castleton, during the entire year, the rain falls for 265.1 days and collects up to 806mm (31.73") of precipitation.Daylight
In July, the average length of the day is 13h and 6min.On the first day of July, sunrise is at 05:35 and sunset at 18:47. On the last day of the month, sunrise is at 05:45 and sunset at 18:41 EST.
Sunshine
In July, the average sunshine is 10.8h.UV index
The months with the highest UV index 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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: In July, a daily UV index of 7 turns into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
How hot is July?
What is the least humid month?
What is the average humidity in July?
How much does it rain in July?
How many hours of daylight does Castleton have in July?
What time are sunrise and sunset in July?
How many hours of sunshine does Castleton have in July?
When is the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Castleton, Jamaica
- Average high temperature in July: 31.7°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 July: 23.5°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 July
Castleton, Jamaica
- Average pressure in July: 1014.6mbar
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 July
Castleton, Jamaica
- Average wind speed in July: 8.8km/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 July
Castleton, Jamaica
- Average humidity in July: 77%
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 July
Castleton, Jamaica
- Average rainfall in July: 84mm
The wettest month (with the highest rainfall) is October (123mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in July
Castleton, Jamaica
- Average rainfall days in July: 21.2 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 July /
Average sunshine in July
Castleton, Jamaica
- Average daylight in July: 13h 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 July: 10h and 5min
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 July
Castleton, Jamaica
- Average sunshine days in July: 3 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 July
Castleton, Jamaica
- Average UV index in July: 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 July
Castleton, Jamaica
- Average cloud cover in July: 30
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 July
Castleton, Jamaica
- Average visibility in July: 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).
