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
The height of temperatures in Maili, Hawaii, is seen during August and September, averaging a high-temperature of 81.7°F (27.6°C).Heat index
For most parts of September, the heat index is computed to be a tropical 86°F (30°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. 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 are highly critical for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
The months with the lowest humidity in Maili are January, April through June, August through November, with an average relative humidity of 74%.Rainfall
In Maili, Hawaii, during September, the rain falls for 18.9 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, in Maili, there are 196.3 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Ocean temperature
The month with the warmest seawater in Maili is September, with an average ocean temperature of 80.6°F (27°C).Note: For water activities like swimming, diving, and more, temperatures ranging between 77°F (25°C) and 84.2°F (29°C) offer superior comfort and enjoyment for lengthy durations.
Daylight
In Maili, Hawaii, the average length of the day in September is 12h and 15min.On the first day of the month, sunrise is at 6:16 am and sunset at 6:48 pm. On the last day of September, in Maili, sunrise is at 6:23 am and sunset at 6:20 pm HST.
Sunshine
The average sunshine in September is 9.1h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 7 during September leads to these advisories:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Attention! UV radiation is markedly stronger with water and sand reflections.
Frequently asked questions
What is the hottest time of year in Maili?
What is the usual temperature for Maili in September?
What is the least humid month in Maili?
What is the average humidity in September in Maili?
How much does it rain in Maili in September?
What is the month with the warmest ocean in Maili?
How warm is the water in September in Maili?
What is the average length of the day in September in Maili?
When is the sunrise / sunset in September in Maili?
How long on average sun shines in September in Maili?
When is the highest UV index in Maili?
What is the UV index reading in September in Maili?
Average temperature in September
Maili, HI
- Average high temperature in September: 81.7°F
The warmest months (with the highest average high temperature) are August and September (81.7°F).
The month with the lowest average high temperature is February (75°F).
- Average low temperature in September: 75.9°F
The months with the highest average low temperature are August and September (75.9°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure in September
Maili, HI
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in September
Maili, HI
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is October (8.8mph).
Average humidity in September
Maili, HI
- Average humidity in September: 74%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, April, May, June, August, September, October and November (74%).
Average rainfall in September
Maili, HI
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is March (1.81").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in September
Maili, HI
- Average rainfall days in September: 18.9 days
The month with the highest number of rainy days is September (18.9 days).
The month with the least rainy days is January (13.8 days).
Average sea temperature in September
Maili, HI
- Average sea temperature in September: 80.6°F
The best month for swimming (with the highest average sea temperature) is September (80.6°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in September /
Average sunshine in September
Maili, HI
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in September
Maili, HI
- Average sunshine days in September: 6.6 days
The month with the most sunshine days is January (11.8 days).
The month with the least sunshine days is November (6.4 days).
Average UV index in September
Maili, HI
- Average UV index in September: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 6).
Average cloud cover in September
Maili, HI
- Average cloud cover in September: 32
The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are January and September (Cloud cover 32).
Average visibility in September
Maili, HI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Maili, Hawaii, USA
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