Honolulu

Hawaii Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Hawaii, the United States of America in September.

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Kihei Lahaina Honolulu Princeville

Planning a journey to Hawaii, the United States of America this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Hawaii in September

Hawaii, the United States of America is a region in the United States of America. September in Hawaii generally has temperatures that range from warm to very warm, with precipitation levels ranging from low to heavy.

Temperatures

The average maximum daytime temperatures vary from warm in Volcano at 23°C (73°F) to very warm in Wailuku at 30°C (86°F). Nighttime temperatures generally drop to 24°C (75°F) in Wailuku and 18°C (64°F) in Volcano. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

For specific regional insights in Hawaii, the United States of America, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From low rainfall in Kaunakakai with an average of 9.3 mm (0.4 in) to heavy rainfall in Captain Cook with 530 mm (21 in).

Average sunshine

Several destinations enjoy plenty of sunshine this month. Kihei sees close to 271 hours of sunlight, making it great for sun lovers.

Explore Hawaii by month

Pick a month to see the average temperature, rainfall and sunshine in Hawaii — and find the best time to visit. (based on Kihei)

January26°C (79°F) February26°C (79°F) March26°C (79°F) April27°C (81°F) May28°C (82°F) June29°C (84°F) This monthJuly30°C (86°F) August30°C (86°F) September30°C (86°F) October29°C (84°F) November28°C (82°F) December27°C (81°F)
Best Time to Visit Hawaii →

Best Places to Visit in Hawaii in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Hawaii.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Hawaii

What is the weather like in September for some of the most popular destinations in Hawaii, the United States of America?

Temperature range in Hawaii (September)

Precipitation variation in Hawaii (September)

Kihei

In September Kihei generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 23°C (73°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
23°C (73°F)
23°C (73°F)
23°C (73°F)
Monthly sun hours
285 hours
271 hours
249 hours
Monthly rainfall
32 mm (1.3 in)
29 mm (1.1 in)
38 mm (1.5 in)
Monthly rainy days
9 days
8 days
10 days
Weather conditions
pleasant
perfect
perfect
Climate in Kihei →

Lahaina

In September Lahaina generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 24°C (75°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
28°C (82°F)
Min temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
285 hours
271 hours
249 hours
Monthly rainfall
13 mm (0.5 in)
12 mm (0.5 in)
22 mm (0.9 in)
Monthly rainy days
9 days
8 days
10 days
Weather conditions
perfect
perfect
perfect
Climate in Lahaina →

Honolulu

In September Honolulu generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 24°C (75°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
28°C (82°F)
Min temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
303 hours
279 hours
244 hours
Monthly rainfall
23 mm (0.9 in)
24 mm (0.9 in)
34 mm (1.3 in)
Monthly rainy days
8 days
9 days
10 days
Weather conditions
perfect
perfect
perfect
Climate in Honolulu →

Princeville

In September Princeville generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
28°C (82°F)
28°C (82°F)
27°C (81°F)
Min temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
263 hours
242 hours
209 hours
Monthly rainfall
49 mm (1.9 in)
49 mm (1.9 in)
68 mm (2.7 in)
Monthly rainy days
17 days
16 days
18 days
Weather conditions
perfect
perfect
perfect
Climate in Princeville →

Koloa

In September Koloa generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
28°C (82°F)
28°C (82°F)
27°C (81°F)
Min temperature
24°C (75°F)
24°C (75°F)
23°C (73°F)
Monthly sun hours
263 hours
242 hours
209 hours
Monthly rainfall
45 mm (1.8 in)
46 mm (1.8 in)
65 mm (2.6 in)
Monthly rainy days
17 days
16 days
17 days
Weather conditions
perfect
perfect
perfect
Climate in Koloa →

Is your destination not in the list? Have a look at all destinations in Hawaii, in the United States of America.

Popular cities in September

Day & night temperatures, rainfall and average weather in Hawaii in September.

City Weather Day temp Night temp Rainfall
Kihei 30°C (86°F) 23°C (73°F) 29 mm (1.1 in)
Lahaina 29°C (84°F) 24°C (75°F) 12 mm (0.5 in)
Honolulu 29°C (84°F) 24°C (75°F) 24 mm (0.9 in)
Princeville 28°C (82°F) 24°C (75°F) 49 mm (1.9 in)
Koloa 28°C (82°F) 24°C (75°F) 46 mm (1.8 in)
Kapaa 28°C (82°F) 24°C (75°F) 65 mm (2.6 in)

Hawaii weather in September: frequently asked questions

What is the weather like in Hawaii, the United States of America in September?

In September, Hawaii, the United States of America generally has pleasant weather conditions. Kihei sees daytime temperatures near 30°C (86°F), with nights cooling to roughly 23°C (73°F).

What is the average temperature in Hawaii, the United States of America in September?

In Kihei, the average daytime high in September is 30°C (86°F), while nighttime temperatures drop to around 23°C (73°F).

Does Hawaii, the United States of America get a lot of rain in September?

September is on the drier side in Hawaii, the United States of America. Kihei averages only about 29 mm (1.1 in), with most days staying dry.

Is September a Good Time to Visit Hawaii, the United States of America?

Given the typically perfect weather conditions in Kihei, September might be a good time to visit Hawaii, the United States of America. However, the weather conditions may vary depending on your destination.

Generally speaking, January, February, March, April, May, June, October, November and December provide perfect weather in Kihei. On the other hand, the month of August tends to have tolerable weather conditions.

Interested in more climate information?

We have much more information about the climate in Hawaii.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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