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 sea temperature 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
With the onset of September, the average high-temperature registers at a still moderately hot 29.4°C (84.9°F), subtly different from August's 29.7°C (85.5°F). East End in September observes a slight diminution in temperature from daily highs, recording a low-temperature average of 28.5°C (83.3°F).Heat index
The heat index for September is estimated at a hot 34°C (93.2°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Realize that the values for the heat index are set for shaded places and light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
With an average relative humidity of 74%, September is the least humid month.Rainfall
In September, the rain falls for 19.9 days. Throughout September, 81mm (3.19") of precipitation is accumulated. In East End, during the entire year, the rain falls for 241.1 days and collects up to 854mm (33.62") of precipitation.Sea temperature
August and September, with an average sea temperature of 29.9°C (85.8°F), are months with the warmest seawater.Note: In water activities such as swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed highly pleasurable for extended periods without any unease.
Daylight
In East End, Cayman Islands, the average length of the day in September is 12h and 14min.On the first day of September in East End, sunrise is at 06:09 and sunset at 18:38. On the last day of the month, sunrise is at 06:15 and sunset at 18:13 EST.
Sunshine
In East End, Cayman Islands, the average sunshine in September 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 of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 7 during September translates into the following directions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Boost your sun resistance with garments that are densely woven yet spacious. Be on guard! The reflective nature of sand and water boosts UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in East End during September?
What is the least humid month in East End?
What is the average humidity in September in East End?
How many days does it rain in September in East End?
When is the sea warmest in East End?
What is the sea water temperature in September in East End?
How many hours of daylight does East End have in September?
When are sunrise and sunset in September in East End?
How many hours of sunshine does East End have in September?
What are the months with the highest UV index in East End?
What is the UV index reading in September in East End?
Average temperature in September
East End, 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
East End, 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
East End, 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
East End, 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
East End, 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
East End, 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 sea temperature in September
East End, Cayman Islands
- Average sea temperature in September: 29.9°C
The best months for swimming (with the highest average sea temperature) are August and September (29.9°C).
The coldest months (with the lowest average sea temperature) are January and February (26.6°C).
Average daylight in September /
Average sunshine in September
East End, 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
East End, 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
East End, 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
East End, 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
East End, 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).
East End, Cayman Islands
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