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
September, with an average high of 81.3°F (27.4°C) and a low of 76.1°F (24.5°C), signifies the warmest month of the year.Heat index
The average heat index in September is evaluated at a tropical 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Realize that the values for the heat index are set for shaded places and light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
January, April, May, September and November, with an average relative humidity of 75%, are the least humid months.Rainfall
In Pupukea, during September, the rain falls for 16.9 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, in Pupukea, there are 215.6 rainfall days, and 16.38" (416mm) of precipitation is accumulated.Daylight
In Pupukea, the average length of the day in September is 12h and 16min.On the first day of September in Pupukea, Hawaii, sunrise is at 6:15 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 6:20 pm HST.
Sunshine
The average sunshine in September is 8.6h.UV index
The months with the highest UV index are July and September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 7 translates into these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What is the warmest month in Pupukea?
What is the temperature in September in Pupukea?
What are the least humid months in Pupukea?
What is the average humidity in September in Pupukea?
How much does it rain in Pupukea in September?
What is the average length of the day in September in Pupukea?
What time are sunrise and sunset in September in Pupukea?
How long on average sun shines in September in Pupukea?
When is the highest UV index in Pupukea?
What is the UV index intensity in September in Pupukea?
Average temperature in September
Pupukea, HI
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is September (81.3°F).
The month with the lowest average high temperature is February (74.1°F).
- Average low temperature in September: 76.1°F
The month with the highest average low temperature is September (76.1°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure in September
Pupukea, HI
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The month with the lowest atmospheric pressure is October (29.97"Hg).
Average wind speed in September
Pupukea, HI
- Average wind speed in September: 11.2mph
The windiest month (with the highest average wind speed) is July (13.4mph).
The calmest month (with the lowest average wind speed) is January (10.2mph).
Average humidity in September
Pupukea, HI
- Average humidity in September: 75%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January, April, May, September and November (75%).
Average rainfall in September
Pupukea, HI
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is March (2.09").
The driest month (with the least rainfall) is July (0.75").
Average rainfall days in September
Pupukea, HI
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is January (15.6 days).
Average daylight in September /
Average sunshine in September
Pupukea, 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 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Pupukea, HI
- Average sunshine days in September: 7.4 days
The month with the most sunshine days is January (10.1 days).
The month with the least sunshine days is November (3.5 days).
Average UV index in September
Pupukea, HI
- Average UV index in September: 7
The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).
Average cloud cover in September
Pupukea, HI
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 39).
Average visibility in September
Pupukea, 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).
Pupukea, Hawaii, USA
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