Seasons in Hawaii

Climate of the Hawaii islands is formed by trade winds. Due to their influence precipitation falls mostly in northern and eastern sides of islands. Coastal areas in south and west are drier. Because of trade-winds and potential torrential rains most of resorts are located on the leeward coasts of the islands.

Most of precipitation falls at October through April. At rest of months rains are less frequent and intense. However rise of temperatures increases probability of hurricanes. Summer daytime temperature is between 84-90 °F (29 and 32 °C) while at winter is drops to range between 64-70 °F (18 and 21 °C). Drops below 61 °F (16 °C) and leaps adobe 90 °F (32 °C) are extremely rare.


Weather and Climate

Spring in Hawaii

Annual weather conditions in Hawaii vary neigh. March is penultimate month of rainy season with average amount of precipitation about 1.9” (50 mm). Air temperature of this season is slowly grows from 73 °F (23 °C) at March to 75 °F (25 °C) at May. Thus daily range is wider than seasonal. At night temperature drops by about 9 °F on the Fahrenheit scale (≈5 °C in Celsius).

Overall weather is pleasant and day and slightly cool at evening and nights. Long sleeved sweater is warmest of clothes you might ever need in Hawaii. In addition spring is calm in terms of storms and other natural extremes.

Climate of the Spring Months

March
Max average t°: 81 °F (+27 °C)
Min average t°: 66 °F (+19 °C)
Water t°: 75 °F (+24 °C)
Sundial in the day: 8 hours
Rainy days: 3 days
Precipitation: 1.9" (48 mm)
April
Max average t°: 81 °F (+27 °C)
Min average t°: 67 °F (+19.5 °C)
Water t°: 77 °F (+25 °C)
Sundial in the day: 9 hours
Rainy days: 2 days
Precipitation: 1.2" (30 mm)
May
Max average t°: 84 °F (+29 °C)
Min average t°: 69 °F (+21 °C)
Water t°: 78 °F (+25.5 °C)
Sundial in the day: 9.5 hours
Rainy days: 2 days
Precipitation: 1.1" (29 mm)

(Honolulu)

Spring Holidays

March 3 – Girl’s Day.
March 26 – Prince Jonah Kuhio Kalanianaole Day.

2nd Sunday in May – Mother’s Day.
Last Monday in May – Memorial Day.
May 5 – Boy’s Day.

Summer in Hawaii

Actual summer starts at late April in Hawaii. Three summer months are heist of the season with average temperatures of 81-88 °F (27 to 31 °C) and insignificant amount of precipitation for local wet winter has gone. This is sunny season with average of 287 hours of daylight per month. Amount of precipitation is completely insignificant.

From July through November there is probability of tropical storms and hurricanes. Severe disasters are rare and in addition almost every storm can be waited out on leeward side of an island. Other than this and crowding tourists summer is completely fine season to visit Hawaii.


Climate of the Summer Months

June
Max average t°: 85 °F (+29 °C)
Min average t°: 71 °F (+21.5 °C)
Water t°: 79 °F (+26 °C)
Sundial in the day: 10 hours
Rainy days: 0 days
Precipitation: 0.6" (16 mm)
July
Max average t°: 86 °F (+30 °C)
Min average t°: 73 °F (+22.5 °C)
Water t°: 79 °F (+26 °C)
Sundial in the day: 10 hours
Rainy days: 1 day
Precipitation: 0.7" (17 mm)
August
Max average t°: 86 °F (+30 °C)
Min average t°: 72 °F (+22 °C)
Water t°: 81 °F (+27 °C)
Sundial in the day: 10 hours
Rainy days: 1 day
Precipitation: 0.9" (22.5 mm)

(Honolulu)

Summer Holidays

June 11 – King Kamehameha I Day.

3rd Sunday in June – Father’s Day.

July 4 – Independence Day.

August 21 – Admissions Day.

Autumn in Hawaii

Whole September is completely summer month in terms of weather conditions. Same pleasant temperature and absence of precipitation remains until October. Second month of autumn brings slight drop of temperature and increased precipitation. At November average daytime temperature is 77 °F (25 °C) and level of precipitation per month reaches 2.3” (60 mm) for local winter have started.

September and first half of October is best time for those who have spare time and dislike usual bustle of vacation season. At this time crowds are dwindled. Surfers will surely choose time from October for at local winter waves are great.


Climate of the Autumn Months

September
Max average t°: 87 °F (+30 °C)
Min average t°: 71 °F (+22 °C)
Water t°: 81 °F (+27 °C)
Sundial in the day: 10 hours
Rainy days: 1 day
Precipitation: 0.8" (21 mm)
October
Max average t°: 86 °F (+30 °C)
Min average t°: 70 °F (+21 °C)
Water t°: 81 °F (+27 °C)
Sundial in the day: 9 hours
Rainy days: 1 day
Precipitation: 0.9" (24 mm)
November
Max average t°: 83 °F (+28.5 °C)
Min average t°: 68 °F (+20 °C)
Water t°: 79 °F (+26 °C)
Sundial in the day: 8 hours
Rainy days: 2 days
Precipitation: 1.0" (24.5 mm)

(Honolulu)

Autumn Holidays

1st Monday in September – Labor Day.

November 10 – Veterans Day.

4th Thursday in November – Thanksgiving.

Winter in Hawaii

Overall weather conditions of calendar winter are completely agreeable. Average daytime temperature varies from 72 °F (24 °C) at December to 75 °F (22 °C) at February. At December two peaks are occurring. First of them is peak of precipitation. Its’ level reaches 3.1” (80 mm) per month. Second one is peak of tourist’s influx during winter holidays.

Considering given above literally any time is good to visit the Hawaii. Weather here is pleasant year round and best time for journey completely depends on personal preferences. Crowded periods are easy to avoid and there are no other significant concerns.

Climate of the Winter Months

December
Max average t°: 81 °F (+27 °C)
Min average t°: 66 °F (+19 °C)
Water t°: 77 °F (+25 °C)
Sundial in the day: 7.5 hours
Rainy days: 2 days
Precipitation: 1.2" (31 mm)
January
Max average t°: 80 °F (+26.5 °C)
Min average t°: 65 °F (+18 °C)
Water t°: 76 °F (+24.5 °C)
Sundial in the day: 8 hours
Rainy days: 1 day
Precipitation: 0.75" (19 mm)
February
Max average t°: 80 °F (+26.5 °C)
Min average t°: 64 °F (+18 °C)
Water t°: 76 °F (+24.5 °C)
Sundial in the day: 8 hours
Rainy days: 3 days
Precipitation: 2.1" (54 mm)

(Honolulu)

Winter Holidays

December 25 – Christmas.

January 1 - New Year.

3rd Monday in January – Martin Luther King Jr. Day.

3rd Monday in February – President’s Day.


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