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
Greenwich signifies an average high-temperature of a still hot 30.3°C (86.5°F) in October, closely mirroring the 31.4°C (88.5°F) of September. In Greenwich, the average low-temperature during the month of October is a warm 23.1°C (73.6°F).Heat index
The heat index value for October is appraised at a torrid 39°C (102.2°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. 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 particularly meaningful for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. 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. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
The months with the highest humidity are October through December, with an average relative humidity of 81%.Rainfall
October is the month with the most rainfall. Rain falls for 26.5 days and accumulates 123mm (4.84") of precipitation.Daylight
In October, the average length of the day is 11h and 44min.On the first day of the month, sunrise is at 05:58 and sunset at 17:56. On the last day of October, in Greenwich, sunrise is at 06:07 and sunset at 17:36 EST.
Sunshine
In October, the average sunshine is 7.1h.UV index
May through August and October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In October, a daily maximum UV index of 7 leads to the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Greenwich during October?
What is the most humid month in Greenwich?
What is the average humidity in October in Greenwich?
What is the wettest month in Greenwich?
How much does it rain in Greenwich in October?
What is the average length of the day in October in Greenwich?
When is the sunrise / sunset in October in Greenwich?
How long on average sun shines in October in Greenwich?
When is the highest UV index in Greenwich?
What is the UV index intensity in October in Greenwich?
Average temperature in October
Greenwich, 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
Greenwich, 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
Greenwich, 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
Greenwich, 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
Greenwich, 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
Greenwich, 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
Greenwich, 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
Greenwich, 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
Greenwich, 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
Greenwich, 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
Greenwich, 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).
