Weather in Kilauea, United States in September

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Visiting Kilauea, United States in September

September is one of the best months to visit Kilauea for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in September is slightly warmer than the previous month. September has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright.

September has total rainfall of 3.9cm (1.5inches) making it mostly dry with very rare light showers although there are 18.8 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.

Sea temperatures are a very warm 28°C (82°F). September is an excellent month for swimming in Kilauea with very comfortable temperatures for bathing all day. The sea temperature in September is slightly warmer than the previous month.

Also consider visiting Kilauea in one of the other best months of April, May, August, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Kilauea in September?

Yes, September is a good time for sunbathing in Kilauea.

September has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright. September has total rainfall of 3.9cm (1.5inches) making it mostly dry with very rare light showers although there are 18.8 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.

More about September temperature and sunshine.

Can you swim in Kilauea in September?

Yes, September is an excellent month for swimming in Kilauea with very warm sea temperatures 28°C (82°F).

More about September sea temperatures.

Is September a good time to holiday in Kilauea?

Yes, September is a good time for a holiday in Kilauea.

September has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright. September has total rainfall of 3.9cm (1.5inches) making it mostly dry with very rare light showers although there are 18.8 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much. Sea temperatures are a very warm 28°C (82°F). September is an excellent month for swimming in Kilauea with very comfortable temperatures for bathing all day.

More about the September temperatures and sunshine.

Is Kilauea warm in September?

Yes, Kilauea is very warm and perfect for sunbathing on clear days in September.

The average maximum temperature in Kilauea in September is 30°C (85°F). The average maximum temperature is 29°C (85°) in the previous month and 29°C (84°F) in the next month.

The average temperature in Kilauea in September is 27°C (80°F). The average temperature is 27°C (80°F) in the previous month and 26°C (79°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Kilauea in September?

The average day light hours per day in Kilauea in September are 12.3. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright.

More about September sunshine.

Temperature in Kilauea in September

The weather in September is slightly warmer than the previous month. The average maximum temperature in Kilauea in September is 30°C (85°F). The average maximum temperature is 29°C (85°F) in the previous month and 29°C (84°F) in the next month.

The average temperature in Kilauea in September is 27°C (80°F). The average temperature is 27°C (80°F) in the previous month and 26°C (79°F) in the next month.

The average minimum temperature in Kilauea in September is 23°C (74°F). The minimum temperature is 23°C (74°F) in the previous month and 23°C (73°F) in the next month.

Sunshine in Kilauea in September

The days in September are slightly shorter than the previous month and days continue to get slightly shorter into October. September has a slightly more hours of sunshine than the previous month. During September the average day light hours are 12.3 per day in Kilauea. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright.

The ultraviolet index in Kilauea in September is typically 11.7 during September. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Kilauea in September

The average sea water temperature in Kilauea in September is 27.7°C (81.9°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in September is slightly warmer than the previous month.

Rainfall in Kilauea in September

September weather is slightly drier than the previous month. The average total rainfall in Kilauea in September is 3.9cm (1.5inches) and on average there are 18.8 rainy days in September making it a wet time to visit the beach.

Humidity in Kilauea in September

The maximum dew point (an indicator of humidity) in Kilauea in September is 22°C (71°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan. The dew point is 21°C (70°F) in the previous month and 22°C (22°F) in the next month.

The average maximum relative humidity in Kilauea in September is typically 80.6%. The maximum relative humidity is 79.4% in the previous month and 83.1% in the next month.

The average relative humidity in Kilauea in September is typically 69.3%. The average relative humidity is 68.4% in the previous month and 71.4% in the next month.

Wind Speed in Kilauea in September

The average maximum wind speed in Kilauea in September is typically 28KM/H (17MPH). The average maximum wind speed is 29KM/H (18MPH) in the previous month and 27KM/H (17MPH) in the next month.

The average wind speed in Kilauea in September is typically 17KM/H (10MPH). The average wind speed is 18KM/H (11MPH) in the previous month and 16KM/H (10MPH) in the next month.

The average wind direction in Kilauea in September is from the North-Northeast.

Monthly Averages

Suggested Beaches in September

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.