Rarotonga

Aitutaki Weather in May

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

Planning a journey to Aitutaki, the Cook Islands this May and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Aitutaki in May

Aitutaki, the Cook Islands is a region in the Cook Islands. May in Aitutaki generally has warm temperatures, with precipitation levels ranging from high to heavy.

Temperatures

The average maximum temperatures are warm and range from 27°C (81°F) in Rarotonga to 30°C (86°F) in Rakahanga. Nighttime temperatures generally drop to 27°C (81°F) in Rakahanga and 24°C (75°F) in Rarotonga.

For a closer look at conditions across Aitutaki, the Cook Islands, refer to the map below.

Precipitation

In May, precipitation varies across different areas. From high rainfall in Rarotonga with an average of 136 mm (5.4 in) to heavy rainfall in Arutanga with 177 mm (7 in).

Average sunshine

Sunshine is fairly consistent across many areas. Rarotonga receives about 162 hours of sunlight in May, 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 Aitutaki by month

Best Places to Visit in Aitutaki in May

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

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 Aitutaki

What is the weather like in May for some of the most popular destinations in Aitutaki, the Cook Islands?

Temperature range in Aitutaki (May)

Precipitation variation in Aitutaki (May)

Rarotonga

In May Rarotonga generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are pleasant that month.

May
April
May
June
Max temperature
28°C (82°F)
27°C (81°F)
26°C (79°F)
Min temperature
25°C (77°F)
24°C (75°F)
23°C (73°F)
Monthly sun hours
174 hours
162 hours
165 hours
Monthly rainfall
164 mm (6.5 in)
136 mm (5.4 in)
75 mm (3 in)
Monthly rainy days
12 days
12 days
11 days
Weather conditions

Arutanga

In May Arutanga generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

May
April
May
June
Max temperature
29°C (84°F)
28°C (82°F)
27°C (81°F)
Min temperature
26°C (79°F)
25°C (77°F)
24°C (75°F)
Monthly sun hours
166 hours
165 hours
179 hours
Monthly rainfall
196 mm (7.7 in)
177 mm (7 in)
67 mm (2.6 in)
Monthly rainy days
12 days
12 days
12 days
Weather conditions

Avarua

In May Avarua generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are pleasant that month.

May
April
May
June
Max temperature
28°C (82°F)
27°C (81°F)
26°C (79°F)
Min temperature
25°C (77°F)
24°C (75°F)
23°C (73°F)
Monthly sun hours
174 hours
162 hours
165 hours
Monthly rainfall
165 mm (6.5 in)
137 mm (5.4 in)
75 mm (3 in)
Monthly rainy days
12 days
12 days
11 days
Weather conditions

Aitutaki

In May Aitutaki generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

May
April
May
June
Max temperature
29°C (84°F)
28°C (82°F)
27°C (81°F)
Min temperature
26°C (79°F)
25°C (77°F)
24°C (75°F)
Monthly sun hours
166 hours
165 hours
179 hours
Monthly rainfall
196 mm (7.7 in)
177 mm (7 in)
68 mm (2.7 in)
Monthly rainy days
12 days
12 days
12 days
Weather conditions

Rakahanga

In May Rakahanga generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

May
April
May
June
Max temperature
30°C (86°F)
30°C (86°F)
29°C (84°F)
Min temperature
27°C (81°F)
27°C (81°F)
26°C (79°F)
Monthly rainfall
182 mm (7.2 in)
144 mm (5.7 in)
131 mm (5.2 in)
Monthly rainy days
14 days
14 days
13 days
Weather conditions

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

In our records: the Cook Islands May extremes

Notable May 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.

  • From our sources, the wettest May day in the Cook Islands brought 300 mm (12 in) in Rarotonga on May 25, 2007.

Popular cities in May

Day & night temperatures, rainfall and average weather in Aitutaki in May.

City Weather Day temp Night temp Rainfall
Rarotonga 27°C (81°F) 24°C (75°F) 136 mm (5.4 in)
Arutanga 28°C (82°F) 25°C (77°F) 177 mm (7 in)
Rakahanga 30°C (86°F) 27°C (81°F) 144 mm (5.7 in)
Avarua 27°C (81°F) 24°C (75°F) 137 mm (5.4 in)
Aitutaki 28°C (82°F) 25°C (77°F) 177 mm (7 in)

Aitutaki weather in May: frequently asked questions

What is the weather like in Aitutaki, the Cook Islands in May?

In May, Aitutaki, the Cook Islands generally has pleasant weather conditions. Rarotonga sees daytime temperatures near 27°C (81°F), with nights cooling to roughly 24°C (75°F).

What is the average temperature in Aitutaki, the Cook Islands in May?

In Rarotonga, the average daytime high in May is 27°C (81°F), while nighttime temperatures drop to around 24°C (75°F).

Does Aitutaki, the Cook Islands get a lot of rain in May?

Rarotonga typically receives notable rainfall in May, about 136 mm (5.4 in) on average across Aitutaki, the Cook Islands.

Is May a Good Time to Visit Aitutaki, the Cook Islands?

Given the typically pleasant weather conditions in Rarotonga, May might be a good time to visit Aitutaki, the Cook Islands.

Generally speaking, the best visiting conditions can be found in June, August, September and October offering mostly perfect weather in Rarotonga. On the other hand, the weather in January, February and December tend to be unpleasant.

Interested in more climate information?

We have much more information about the climate in Aitutaki.

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.