Avarua Temperature by Month
Avarua, Aitutaki, Cook Islands has a consistently comfortable climate year-round, with daytime highs averaging 26°C (79°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Avarua Monthly Temperatures
The temperature in Avarua remains steady throughout the year, providing a consistently comfortable climate. Maximum daytime temperatures range from a comfortable 28°C (82°F) in February to a comfortable 25°C (77°F) in August. Nights are mild year-round, with lows ranging from 26°C (79°F) in February to 22°C (72°F) in August.
The chart below illustrates the average maximum day and minimum night temperatures in Avarua by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. February, the city's warmest month, gets 167 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Avarua Temperatures: 1976-2026
Browse day-by-day temperature records for Avarua spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Avarua vs the Cook Islands
The map below shows the annual temperature across the Cook Islands. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Avarua vs World: Temperature Compared
Avarua's average annual maximum temperature is 26°C (79°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Avarua?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Avarua, August is the coolest month, with average highs of 25°C (77°F) and humidity around 83% — considered very high. In February, the warmest month, temperatures average 28°C (82°F) with 86% humidity — conditions that feel very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Avarua's weather — including monthly rainfall, sunshine hours, and humidity — visit our Avarua climate page.
