The Big Island Weather in July

Average temperatures, rainfall, sunshine and the best places to visit in The Big Island, the United States of America in July.

Considering a trip to The Big Island, the United States of America this July and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in The Big Island in July

The Big Island, the United States of America is a region in the United States of America. July in The Big Island generally has warm temperatures, with precipitation levels ranging from low to heavy.

Temperatures

The average maximum temperatures are warm and range from 23°C (73°F) in Volcano to 28°C (82°F) in Hapuna Beach. Nighttime temperatures generally drop to 20°C (68°F) in Hapuna Beach and 17°C (63°F) in Volcano.

For a closer look at conditions across The Big Island, the United States of America, refer to the map below.

Precipitation

In July, precipitation varies across different areas. From low rainfall in Hawi with an average of 27 mm (1.1 in) to heavy rainfall in Captain Cook with 663 mm (26 in). Based on climate data from the last 30 years, Kailua-Kona receives the most rainfall during this month of the year.

Average sunshine

Most destinations offer generous amounts of sunshine this July. For example, Kailua-Kona gets approximately 290 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore The Big Island by month

Pick a month to see the average temperature, rainfall and sunshine in The Big Island - and find the best time to visit. (based on Kailua-Kona)

Best Places to Visit in The Big Island in July

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across The Big Island.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in The Big Island

What is the weather like in July for some of the most popular destinations in The Big Island, the United States of America?

Temperature range in The Big Island (July)

Precipitation variation in The Big Island (July)

Kailua-Kona

In July Kailua-Kona generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
25°C (77°F)
25°C (77°F)
26°C (79°F)
Min temperature
21°C (70°F)
21°C (70°F)
22°C (72°F)
Monthly sun hours
290 hours
290 hours
280 hours
Monthly rainfall
412 mm (16 in)
432 mm (17 in)
422 mm (17 in)
Monthly rainy days
17 days
19 days
18 days
Weather conditions

Waikoloa

In July Waikoloa generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
26°C (79°F)
27°C (81°F)
27°C (81°F)
Min temperature
19°C (66°F)
20°C (68°F)
20°C (68°F)
Monthly sun hours
290 hours
290 hours
280 hours
Monthly rainfall
344 mm (14 in)
327 mm (13 in)
341 mm (13 in)
Monthly rainy days
17 days
20 days
19 days
Weather conditions

Hapuna Beach

In July Hapuna Beach generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are mixed that month.

June
July
August
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
20°C (68°F)
20°C (68°F)
21°C (70°F)
Monthly sun hours
290 hours
290 hours
280 hours
Monthly rainfall
269 mm (11 in)
258 mm (10 in)
272 mm (11 in)
Monthly rainy days
17 days
20 days
19 days
Weather conditions

Kaupulehu

In July Kaupulehu generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
26°C (79°F)
26°C (79°F)
27°C (81°F)
Min temperature
21°C (70°F)
22°C (72°F)
22°C (72°F)
Monthly sun hours
290 hours
290 hours
280 hours
Monthly rainfall
367 mm (14 in)
347 mm (14 in)
345 mm (14 in)
Monthly rainy days
16 days
19 days
18 days
Weather conditions

Kalaoa

In July Kalaoa generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
25°C (77°F)
25°C (77°F)
26°C (79°F)
Min temperature
21°C (70°F)
21°C (70°F)
22°C (72°F)
Monthly sun hours
290 hours
290 hours
280 hours
Monthly rainfall
422 mm (17 in)
408 mm (16 in)
400 mm (16 in)
Monthly rainy days
17 days
19 days
18 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in The Big Island, in the United States of America.

In our records: the United States of America July extremes

Notable July records observed across cities in the United States of America in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest July day in the United States of America reached 51°C (124°F) in Palm Desert on July 28, 1995.

Popular cities in July

Day & night temperatures, rainfall and average weather in The Big Island in July.

City Weather Day temp Night temp Rainfall
Kailua-Kona 25°C (77°F) 21°C (70°F) 432 mm (17 in)
Waikoloa 27°C (81°F) 20°C (68°F) 327 mm (13 in)
Hapuna Beach 28°C (82°F) 20°C (68°F) 258 mm (10 in)
Kaupulehu 26°C (79°F) 22°C (72°F) 347 mm (14 in)
Kalaoa 25°C (77°F) 21°C (70°F) 408 mm (16 in)
Waimea 27°C (81°F) 19°C (66°F) 174 mm (6.9 in)

The Big Island weather in July: frequently asked questions

What is the weather like in The Big Island, the United States of America in July?

In July, The Big Island, the United States of America generally has less favorable weather conditions. Kailua-Kona sees daytime temperatures near 25°C (77°F), with nights cooling to roughly 21°C (70°F).

What is the average temperature in The Big Island, the United States of America in July?

Daytime temperatures in Kailua-Kona peak at roughly 25°C (77°F) in July, dropping to about 21°C (70°F) overnight.

Does The Big Island, the United States of America get a lot of rain in July?

Expect plenty of rainfall. Kailua-Kona records an average of 432 mm (17 in) in July, putting it among the wetter months for The Big Island, the United States of America.

Is July a Good Time to Visit The Big Island, the United States of America?

In our view, July might not be the best time to travel to The Big Island, the United States of America with often less favorable weather in Kailua-Kona.

On average, the best time to visit The Big Island, the United States of America is in January, February and December with generally very good weather in Kailua-Kona. On the other hand, the weather in April, May, June, July, August, September and October tend to be less favorable.

Interested in more climate information?

We have much more information about the climate in The Big Island.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.