Hawaii weather in May and the best time to visit Oahu
The weather in Hawaii is warm and dry for most of the year, but it can get rainy. While the daytime temperatures reach 85° to 89° Fahrenheit during the summer months, the nighttime temperatures are typically cool. In the month of May, brief rain showers can occur in Maui, Lana, and Oahu. Winds are still around seven to 10 mph, but the chances of rainfall are low.
During the daytime, the average temperature is around 77° Fahrenheit, although this varies by island. During the evenings, the temperatures are usually in the mid-seventies, and the Big Island is known for its constant sunshine. During the daytime, temperatures do not drop below 65° Fahrenheit. The humidity level is around 80 to 85%, but it is less than half that in May.
In May, the rainy season has come to an end and the waves are higher than the mid-summer months and ocean temperatures are a comfortable 77° Fahrenheit. May is still the least expensive month to visit the island and is much less congested compared to June and July. There are fewer visitors during May and hotels offer reduced rates. The weather in May is just as pleasant as it is during the winter making it the perfect time to book a vacation and explore the islands.
During the months of June and July, the temperatures in Honolulu begin to rise and are generally in the low 80s during the day and 70s in the evening. The ocean temperatures are usually around 79° Fahrenheit consistent with other parts of the island. This is the perfect time to visit Oahu, since the weather is warm and sunny, with little rain and few clouds. Perfect for that summer getaway. During this time the visitor traffic tends to increase. If you prefer the warmer weather and are planning a trip during the month of June, we recommend booking a few months in advance for the best rates.
August is the warmest month of the year in Hawaii. During the month of August, daytime temperatures are usually 85° Fahrenheit. Nighttime temperatures are 74° Fahrenheit, which is hotter than the previous two months. Despite the sweltering temperatures, the island stays pleasant even at night and is perfect for a nighttime stroll along the beach.
If you are an experienced surfer, the months of November to April bring in the most aggressive surfing conditions. The beginner or more casual surfer will find the less aggressive conditions during the warmer summer months of May to September. No matter what time of year there is always something for everyone.