Cook Islands

Cook Islands Weather in July

Average temperatures, rainfall, sunshine and the best places to visit in the Cook Islands in July.

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Rarotonga Arutanga Arorangi Rakahanga

Are you planning a trip a to the Cook Islands in July and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in the Cook Islands in July

July in the Cook Islands generally has warm temperatures, with precipitation levels ranging from moderate to high.

Temperatures

The average maximum temperatures are warm and range from 25°C (77°F) in Rarotonga to 29°C (84°F) in Penrhyn. Nighttime temperatures generally drop to 26°C (79°F) in Penrhyn and 22°C (72°F) in Rarotonga.

For specific regional insights in the Cook Islands, refer to the map provided below.

Precipitation

In July, precipitation varies across different areas. From moderate rainfall in Aitutaki with an average of 82 mm (3.2 in) to high rainfall in Pukapuka with 141 mm (5.6 in).

Average sunshine

Sunshine is fairly consistent across many areas. Rarotonga receives about 178 hours of sunlight in July, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore the Cook Islands by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in the Cook Islands in July

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Cook Islands.

Conditions Temperatures Precipitation
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 Cook Islands

What is the weather like in July for some of the most popular destinations in the Cook Islands?

Temperature range in the Cook Islands (July)

Precipitation variation in the Cook Islands (July)

Rarotonga

In July Rarotonga generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« June
July
August »
June
July
August
Max temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Min temperature
23°C (73°F)
22°C (72°F)
22°C (72°F)
Monthly sun hours
165 hours
178 hours
191 hours
Monthly rainfall
75 mm (3 in)
104 mm (4.1 in)
80 mm (3.1 in)
Monthly rainy days
11 days
13 days
14 days
Weather conditions
perfect
pleasant
perfect
Climate in Rarotonga →

Arutanga

In July Arutanga generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« June
July
August »
June
July
August
Max temperature
27°C (81°F)
26°C (79°F)
26°C (79°F)
Min temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
179 hours
187 hours
187 hours
Monthly rainfall
67 mm (2.6 in)
82 mm (3.2 in)
71 mm (2.8 in)
Monthly rainy days
12 days
13 days
15 days
Weather conditions
perfect
perfect
perfect
Climate in Arutanga →

Arorangi

In July Arorangi generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« June
July
August »
June
July
August
Max temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Min temperature
23°C (73°F)
22°C (72°F)
22°C (72°F)
Monthly sun hours
165 hours
178 hours
191 hours
Monthly rainfall
75 mm (3 in)
104 mm (4.1 in)
80 mm (3.1 in)
Monthly rainy days
11 days
13 days
14 days
Weather conditions
perfect
pleasant
perfect
Climate in Arorangi →

Avarua

In July Avarua generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« June
July
August »
June
July
August
Max temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Min temperature
23°C (73°F)
22°C (72°F)
22°C (72°F)
Monthly sun hours
165 hours
178 hours
191 hours
Monthly rainfall
75 mm (3 in)
104 mm (4.1 in)
80 mm (3.1 in)
Monthly rainy days
11 days
13 days
14 days
Weather conditions
perfect
pleasant
perfect
Climate in Avarua →

Ngatangiia

In July Ngatangiia generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« June
July
August »
June
July
August
Max temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Min temperature
23°C (73°F)
22°C (72°F)
22°C (72°F)
Monthly sun hours
165 hours
178 hours
191 hours
Monthly rainfall
75 mm (3 in)
105 mm (4.1 in)
80 mm (3.1 in)
Monthly rainy days
11 days
13 days
14 days
Weather conditions
perfect
pleasant
perfect
Climate in Ngatangiia →

Is your destination not in the list? Have a look at all destinations in the Cook Islands.

In our records: the Cook Islands July extremes

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

  • In our records, the coldest July daytime high in the Cook Islands was 19°C (66°F) in Avarua on July 27, 1997.

Popular cities in July

Day & night temperatures, rainfall and average weather in the Cook Islands in July.

City Weather Day temp Night temp Rainfall
Rarotonga 25°C (77°F) 22°C (72°F) 104 mm (4.1 in)
Arutanga 26°C (79°F) 24°C (75°F) 82 mm (3.2 in)
Arorangi 25°C (77°F) 22°C (72°F) 104 mm (4.1 in)
Rakahanga 29°C (84°F) 26°C (79°F) 131 mm (5.2 in)
Pukapuka 29°C (84°F) 26°C (79°F) 141 mm (5.6 in)
Penrhyn 29°C (84°F) 26°C (79°F) 111 mm (4.4 in)

The Cook Islands weather in July: frequently asked questions

What is the weather like in the Cook Islands in July?

Expect pleasant weather across the Cook Islands in July. The popular destination of Rarotonga averages 25°C (77°F) by day and 22°C (72°F) at night during this month.

What is the average temperature in the Cook Islands in July?

Rarotonga averages a daytime maximum of 25°C (77°F) in July, with overnight lows close to 22°C (72°F).

Does the Cook Islands get a lot of rain in July?

Rarotonga typically receives notable rainfall in July, about 104 mm (4.1 in) on average across the Cook Islands.

Is July a Good Time to Visit the Cook Islands?

In our opinion, July is a good time to visit the Cook Islands with overall pleasant weather in Rarotonga.

On average, the best time to visit the Cook Islands is in June, August, September and October with generally perfect weather in Rarotonga. In contrast, January, February and December tend to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in the Cook Islands.

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

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.

The perfect escape to get away from it all

Still relatively untouched the Cook Islands are what paradise looks like in your wildest dreams. Expect tropical and green landscapes, mesmerizing turquoise waters and powder soft white sand.
Must visit in the Cook Islands →