Weather in Kahului, Maui Island, United States in September

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Visiting Kahului, Maui Island, United States in September

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

The weather in September is marginally cooler than the previous month and temperatures continue to drop slightly into October. September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright.

September has total rainfall of 14.6cm (5.7inches) making it quite dry with only moderate showers. There are just 9.5 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

Sea temperatures are a very warm 27°C (81°F). September is an excellent month for swimming in Kahului with very comfortable temperatures for bathing all day. The sea temperature in September is slightly warmer than the previous month.

September offers warm, sunny weather, perfect for swimming and sunbathing at the beach. Surf conditions begin to improve as the fall swells arrive, attracting surfers back to the beach. Snorkeling, diving, windsurfing, and kitesurfing conditions remain optimal, with calm ocean currents and excellent visibility. Also consider visiting Kahului in one of the other best months of June, July, October, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Kahului in September?

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

September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright. September has total rainfall of 14.6cm (5.7inches) making it quite dry with only moderate showers. There are just 9.5 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

More about September temperature and sunshine.

Can you swim in Kahului in September?

Yes, September is an excellent month for swimming in Kahului with very warm sea temperatures 27°C (81°F).

More about September sea temperatures.

Is September a good time to holiday in Kahului?

Yes, September is a great time for a holiday in Kahului.

September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright. September has total rainfall of 14.6cm (5.7inches) making it quite dry with only moderate showers. There are just 9.5 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. Sea temperatures are a very warm 27°C (81°F). September is an excellent month for swimming in Kahului with very comfortable temperatures for bathing all day.

More about the September temperatures and sunshine.

Is Kahului warm in September?

Yes, Kahului is very hot and perfect for sunbathing on clear days in September.

The average maximum temperature in Kahului in September is 31°C (88°F). The average maximum temperature is 31°C (88°) in the previous month and 31°C (87°F) in the next month.

The average temperature in Kahului in September is 26°C (79°F). The average temperature is 27°C (80°F) in the previous month and 26°C (78°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Kahului in September?

The average day light hours per day in Kahului in September are 12.3. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright.

More about September sunshine.

Crowds in Kahului in September

September is considered the shoulder season in Maui, with fewer visitors and lower prices. With the exception of Labor Day weekend, which can bring more visitors to the island, Kahului Beach remains relatively uncrowded during this month.

Temperature in Kahului in September

The weather in September is marginally cooler than the previous month and temperatures continue to drop slightly into October. The average maximum temperature in Kahului in September is 31°C (88°F). The average maximum temperature is 31°C (88°F) in the previous month and 31°C (87°F) in the next month.

The average temperature in Kahului in September is 26°C (79°F). The average temperature is 27°C (80°F) in the previous month and 26°C (78°F) in the next month.

The average minimum temperature in Kahului in September is 21°C (70°F). The minimum temperature is 22°C (71°F) in the previous month and 21°C (69°F) in the next month.

Sunshine in Kahului in September

The days in September are slightly shorter than the previous month and days continue to get slightly shorter into October. September has less hours of sunshine than the previous month and hours of sunshine continue to drop into October. During September the average day light hours are 12.3 per day in Kahului. The sunshine percentage is 62% making it sunny but overcast at times. The hours of sunshine per day are 7.6hrs making the days quite long and bright.

The ultraviolet index in Kahului in September is typically 12 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 Kahului in September

The average sea water temperature in Kahului in September is 27°C (80.6°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 Kahului in September

September weather is noticeably drier than the previous month. September has fewer days of rain than the previous month and rainy days continue to drop slightly into October. The average total rainfall in Kahului in September is 14.6cm (5.7inches) and on average there are 9.5 rainy days in September making it a quite rainy time to visit the beach.

Humidity in Kahului in September

The maximum dew point (an indicator of humidity) in Kahului in September is 21°C (70°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 21°C (70°F) in the previous month and 21°C (21°F) in the next month.

The average maximum relative humidity in Kahului in September is typically 84.4%. The maximum relative humidity is 84.1% in the previous month and 86.8% in the next month.

The average relative humidity in Kahului in September is typically 67.4%. The average relative humidity is 66.9% in the previous month and 69.5% in the next month.

Wind Speed in Kahului in September

The average maximum wind speed in Kahului in September is typically 41KM/H (25MPH). The average maximum wind speed is 43KM/H (27MPH) in the previous month and 37KM/H (23MPH) in the next month.

The average wind speed in Kahului in September is typically 21KM/H (13MPH). The average wind speed is 23KM/H (14MPH) in the previous month and 18KM/H (11MPH) in the next month.

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

Monthly Averages

Suggested Beaches in September

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Need Inspiration?

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