September weather forecastNorth Side, Cayman Islands
September
Weather in September
September's weather in North Side, Cayman Islands encompasses elements of the transitioning phase and echoes the patterns established by August. Despite the sea temperature remaining at the peak level of 29.9°C (85.8°F), the land experiences a mildly cooler temperature compared to the previous month. However, the approaching end of the wet season does not suggest a significant reduction in rainfall yet.Temperature
September commences in North Side with an average high-temperature of a still moderately hot 29.4°C (84.9°F), showing little deviation from August's 29.7°C (85.5°F). An average low-temperature of 28.5°C (83.3°F) characterizes North Side's September nights.Heat index
The heat index value during September is calculated to be a tropical 34°C (93.2°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
September is the least humid month, with an average relative humidity of 74%.Rainfall
In North Side, during September, the rain falls for 19.9 days and regularly aggregates up to 81mm (3.19") of precipitation. In North Side, 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 in North Side.Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations.
Daylight
In North Side, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 06:09 and sunset at 18:39. On the last day of September, in North Side, sunrise is at 06:15 and sunset at 18:13 EST.
Sunshine
The average sunshine in September in North Side, Cayman Islands, 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 reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
North Side, 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
North Side, 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
North Side, 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
North Side, 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
North Side, 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
North Side, 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
North Side, 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
North Side, Cayman Islands
- Average daylight in September: 12h and 12min
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
North Side, 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
North Side, 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
North Side, 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
North Side, 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).
