July weather forecast and climate
Honolulu, HI

Waikiki beach viewed from above, with clear calm waters on the foot of Honolulu city, Hawaii, with the vast cityscape and mountains in the distance
Waikiki beach viewed from above, with clear calm waters on the foot of Honolulu city, Hawaii, with the vast cityscape and mountains in the distance
July is the driest month of the year in Honolulu, Hawaii, with a slight rise in humidity to 64%. The rainfall drops further to rain only for an average of just nine days all month. The rain gauge in July collects precipitation of averagely 0.1" (2.5mm), which is the lowest collection of the year. The sunshine hours per day are steady at eleven, heating the ocean temperatures to a constant 26°. The temperatures rise further to read 75.2°F (24°C) at the lowest point and a constant 87.8°F (31°C) at its highest point.

What is the temperature in July in Honolulu?

In Honolulu, Hawaii, in July, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 74.5°F (23.6°C).
Average temperature in July - Honolulu, HI
  • Average high temperature in July: 31.1°C

The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (26.7°C).

  • Average low temperature in July: 23.6°C

The month with the highest average low temperature is August (23.9°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).

Average humidity in July - Honolulu, HI
  • Average humidity in July: 64.6%

The month with the highest relative humidity is January (73.3%).
The month with the lowest relative humidity is August (64.1%).

Average rainfall in July - Honolulu, HI
  • Average rainfall in July: 239mm

The wettest month (with the highest rainfall) is March (291mm).
The driest month (with the lowest rainfall) is June (158mm).

Average rainfall days in July - Honolulu, HI
  • Average rainfall days in July: 7.1 days

The month with the highest number of rainy days is December (9.7 days).
The month with the lowest number of rainy days is August (5.6 days).

Average sea temperature in July - Honolulu, HI
  • Average sea temperature in July: 26.2°C

The best month for swimming (with the highest average sea temperature) is September (26.9°C).
The coldest month (with the lowest average sea temperature) is March (24.3°C).

Average daylight in July / Average sunshine in July - Honolulu, HI
  • Average daylight in July: 13.3h

The month with the longest days is June (Average daylight: 13.4h).
The month with shortest days is December (Average daylight: 10.9h).

  • Average sunshine in July: 9.9h

The month with most sunshine is July (Average sunshine: 9.9h).
The month with least sunshine is December (Average sunshine: 6.4h).

Average UV index in July - Honolulu, HI
  • Average UV index in July: 12

Months with the highest UV index are June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 6).

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