Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September manifests an average high-temperature of a still warm 29.4°C (84.9°F), demonstrating a minor variation from the preceding month. September's average low-temperature in Gun Bay is a still moderately hot 28.5°C (83.3°F), reflecting a minor difference from the day's peak temperatures.Heat index
The heat index value for September is estimated at a tropical 34°C (93.2°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
September is the least humid month in Gun Bay, with an average relative humidity of 74%.Rainfall
In Gun Bay, during September, the rain falls for 19.9 days and regularly aggregates up to 81mm (3.19") of precipitation. In Gun Bay, Cayman Islands, during the entire year, the rain falls for 241.1 days and collects up to 854mm (33.62") of precipitation.Daylight
In September, the average length of the day in Gun Bay is 12h and 14min.On the first day of September in Gun Bay, sunrise is at 06:09 and sunset at 18:38. On the last day of the month, sunrise is at 06:14 and sunset at 18:13 EST.
Sunshine
The average sunshine in September in Gun Bay is 9h.UV index
The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 7 suggests these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
How hot is it in Gun Bay in September?
What is the least humid month in Gun Bay?
What is the average humidity in September in Gun Bay?
How much does it rain in Gun Bay in September?
What is the average length of the day in September in Gun Bay?
What time are sunrise and sunset in September in Gun Bay?
How many hours of sunshine does Gun Bay have in September?
When is the highest UV index in Gun Bay?
What is the UV index intensity in September in Gun Bay?
Average temperature in September
Gun Bay, Cayman Islands
- Average high temperature in September: 29.4°C
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is February (26.2°C).
- Average low temperature in September: 28.5°C
The month with the highest average low temperature is August (28.6°C).
The coldest month (with the lowest average low temperature) is March (24.9°C).
Average pressure in September
Gun Bay, Cayman Islands
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is October (1011.7mbar).
Average wind speed in September
Gun Bay, Cayman Islands
- Average wind speed in September: 17.2km/h
The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is September (17.2km/h).
Average humidity in September
Gun Bay, Cayman Islands
- Average humidity in September: 74%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is September (74%).
Average rainfall in September
Gun Bay, Cayman Islands
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is October (159mm).
The driest month (with the least rainfall) is March (24mm).
Average rainfall days in September
Gun Bay, Cayman Islands
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is March (16 days).
Average daylight in September /
Average sunshine in September
Gun Bay, Cayman Islands
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Gun Bay, Cayman Islands
- Average sunshine days in September: 7.4 days
The month with the most sunshine days is March (9.3 days).
The month with the least sunshine days is November (2.5 days).
Average UV index in September
Gun Bay, Cayman Islands
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
Gun Bay, Cayman Islands
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 28).
Average visibility in September
Gun Bay, Cayman Islands
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Gun Bay, Cayman Islands
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