Sea Temperature in Island of Hawaii in September

© Alexander Shelly

Complete information on the sea temperature range in the Pacific Ocean in Island of Hawaii in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Island of Hawaii. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Island of Hawaii Climate and Swimming Opportunities in September

Island of Hawaii lies within the Hawaii in United States. The average daytime temperature in Island of Hawaii in September is 85°F (30°C), while the nighttime average is 69°F (21°C). There are typically 12 rainy days during the month, with a total precipitation of 4.4 inches (113 mm). The daylight duration in September in Island of Hawaii is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 13 mph (21 km/h), and the humidity level is around 76%.

The water temperature in Island of Hawaii in September ranges from 79°F to 81°F (26°C to 27°C). At the beginning of the month, the average temperature is around 81°F (27°C), shifting to 81°F (27°C) by mid-September and reaching 81°F (27°C) in the last ten days. Overall, the average sea temperature in Island of Hawaii for September is 81°F (27°C). The water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.

Frequently Asked Questions About Water Temperatures in September in Island of Hawaii