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Hawaii Weather in September

Averages By Month

September forms part of Hawaii´s summer season, which is called ’Kau’.September shares the first ranking with August for being the hottest month. Daytime high temperatures rise up to 90°F and nighttime temperatures are in the low 70°F. So it´s beautifully warm with lots of 9 daily sunshine hours. The ocean is also at its highest water temperature of a nice and warm 81°F.September is also the last drier month- the number of rainy days (7) and amount of rainfall rises in the following months. Given the dry weather conditions, the waterfalls, in case you are interested in seeing them, are less strong in their appearance. The month of September also forms part of the hurricane season. But Hawaii is statistically a safe location and hardly ever hit by these.

Finally, it´s worth mentioning that September is one of the least busy months on Hawaii as the school summer break comes to an end. Hotels and flights are cheaper. If you are into canoeing you could visit the Queen Liliuokalani Canoe Races.

High and Low Temperature in September °F

Water Temperature in September °F

Current Weather Hawaii

84°F scattered clouds
Local Time

Hourly 10 Days

Averages Hawaii

  J F M A M J J A S O N D

High °F

81° 81° 82° 82° 82° 84° 89° 89° 89° 86° 84° 81°

Low °F

66° 66° 68° 68° 70° 72° 73° 73° 72° 72° 70° 66°

Sun

7h 7h 8h 9h 9h 9h 9h 9h 9h 8h 7h 7h

Rain Days

9 9 9 8 7 6 7 6 7 9 9 10

Water °F

75° 75° 75° 77° 79° 79° 81° 81° 81° 79° 79° 77°

Hawaii Weather by Month

Best Time to visit Hawaii

Based on the weather we can safely recommend any time of the year for a vacation in Hawaii. The sun will shine daily and trade winds will provide a refreshing breeze.

In Hawaii the weather has only two seasons. The warm, dry summer where the temperatures reach from 81°F to 89°F is called ’Kau’ and the winter which lasts from November until April is called ’Hooilo’. In the winter season temperatures reach from 68°F to 81°F and the trade winds are slightly stronger. This time of the year is ideal for surfers who love the higher waves.

Things to know about Hawaii

Hawaii is a group of islands in the Pacific Ocean and the 6 main islands of Hawaii are Oahu, Kauai, Maui, Hawaii, Molokai and Lanai.
Hawaii simply offers everything vacation wise- from turquoise seawater to white sand beaches, beautiful waterfalls, rainforests, mountains, active volcanoes and even snow! You can enjoy huge shopping malls or explore the endless activities in the nature. The weather on the different islands is quite contrasting. On the big island of Hawaii, for example, you may sunbathe at the beach and swim in the ocean even during winter months (November until February). Straight after you could go for a walk in the snow on the mountain Mauna Kea. Hawaii’s mountains reach heights up to 13796 ft and offer diverse climate zones - from subtropical to sub-arctic. However, along the coast the weather is pleasantly warm all year round.

Hawaii Kaimana Beach
Hawaii surfboards


The island of Kauai is also called the ‘garden island’ and is host to one of the most impressive landscapes in all of the South Pacific.

Hawaii’s capital Honolulu is situated on the island of Oahu. Oahu is also called the ‘heart of Hawaii’ and you will find many of the legendary surf beaches such as Haleiwa.

The island of Molokai is famous for its rustic charm and beauty.

Lanai is the island of contrast and balances relaxing luxury with rough nature.

Maui offers a huge amount of unforgettable experiences from its famous beaches to the mountain Haleakala.

Finally, on the Big Island of Hawaii you can explore endlessly. From active volcanoes to coffee farms, beautiful beaches and a rich history you will not get bored.

Hawaii Location

Other destinations in September



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