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
In Lawai, Hawaii, the peak temperatures are generally noted in September, averaging a high of 79.7°F (26.5°C) and a low of 75.9°F (24.4°C).Humidity
The average relative humidity in September in Lawai is 76%.Rainfall
In Lawai, in September, during 18.7 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, in Lawai, Hawaii, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Daylight
The average length of the day in September in Lawai is 12h and 16min.On the first day of the month, sunrise is at 6:21 am and sunset at 6:54 pm. On the last day of September, sunrise is at 6:29 am and sunset at 6:26 pm HST.
Sunshine
In September, the average sunshine in Lawai is 8.7h.UV index
With an average maximum UV index of 7, September is the month with the highest UV index in Lawai, Hawaii. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 7 in September transforms into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in Lawai?
What is the usual temperature for Lawai in September?
What is the average humidity in September in Lawai?
How many days does it rain in September in Lawai?
How many hours of daylight does Lawai have in September?
What time are sunrise and sunset in September in Lawai?
How long on average sun shines in September in Lawai?
When is the highest UV index in Lawai?
How high is the UV index in September in Lawai?
Average temperature in September
Lawai, HI
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in September: 75.9°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in September
Lawai, HI
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in September
Lawai, HI
- Average wind speed in September: 11.1mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in September
Lawai, HI
- Average humidity in September: 76%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in September
Lawai, HI
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in September
Lawai, HI
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average daylight in September /
Average sunshine in September
Lawai, HI
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 30min).
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 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in September
Lawai, HI
- Average sunshine days in September: 5.3 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in September
Lawai, HI
- Average UV index in September: 7
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in September
Lawai, HI
- Average cloud cover in September: 38
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 38).
Average visibility in September
Lawai, 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).
Lawai, Hawaii, USA
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