Climate Chart of Avarua, Cook Islands
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Avarua, Cook Islands, the climate data describe 2013–2023. Monthly mean temperatures average 24.5 °C, with the highest monthly mean in March at 26.3 °C and the lowest in August at 22.6 °C. Daily sunshine averages 9.60 hours/day, while mean daily rainfall averages 4.60 mm/day. Together, these figures sketch a generally warm pattern, while the month-by-month measures help visitors consider temperature, rainfall and sunshine separately.
Climate overview
Temperature
Monthly mean temperatures average 24.5 °C across the calendar-month means; this is not a daytime high or a day-weighted annual average. The warmest monthly mean occurs in March at 26.3 °C, while the coolest is in August at 22.6 °C. These averages give a useful broad guide to the temperature pattern, but do not describe the range of conditions on individual days.
Rain
Mean daily rainfall averages 4.60 mm/day across the calendar-month means, rather than representing a monthly total. The highest monthly mean is in January at 8.14 mm/day, and the lowest is in September at 2.36 mm/day. The lower figure may guide visitors prioritising lower average rainfall, but it does not guarantee dry days or indicate how often rain occurs.
Sunshine
Mean daily sunshine averages 9.60 hours/day across the calendar-month means. The highest monthly mean is in November at 10.55 hours/day, and the lowest is in July at 8.54 hours/day. These duration averages can help with outdoor daylight planning, but sunshine hours are not the same as day length and do not guarantee clear conditions on a particular day.
Best Travel Time Guide for Avarua, Cook Islands: Ideal Seasons and Weather Insights
Visitors prioritising cooler monthly mean conditions could consider August, when the mean is 22.6 °C; this describes a monthly average, not the temperature at every hour or on every day. For a lower-average-rainfall criterion, September is the option indicated by the lowest mean daily rainfall, 2.36 mm/day. Rain preparation is still sensible: the highest monthly mean is in January at 8.14 mm/day, and neither average specifies the chance of rain on a given day.
For outdoor plans guided by average sunshine duration, November has the highest mean at 10.55 hours/day, while July has the lowest at 8.54 hours/day. These are daily duration averages, not promises of sunshine or measures of daylight length, so they offer one planning criterion rather than a single best time to visit.
Climate Data Overview for Avarua, Cook Islands
Explore the comprehensive climate data for Avarua, Cook Islands. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 25.9 | 8.14 | 0.00 | 10.27 |
| Feb | 26.2 | 6.90 | 0.00 | 10.15 |
| Mar | 26.3 | 7.51 | 0.00 | 9.75 |
| Apr | 25.7 | 4.72 | 0.00 | 9.37 |
| May | 24.8 | 5.11 | 0.00 | 8.72 |
| Jun | 23.8 | 2.68 | 0.00 | 8.72 |
| Jul | 23.0 | 3.27 | 0.00 | 8.54 |
| Aug | 22.6 | 3.01 | 0.00 | 8.97 |
| Sep | 22.9 | 2.36 | 0.00 | 9.94 |
| Oct | 23.2 | 2.99 | 0.00 | 9.95 |
| Nov | 24.0 | 2.93 | 0.00 | 10.55 |
| Dec | 25.1 | 5.54 | 0.00 | 10.24 |
| Average | 24.5 | 4.60 | 0.00 | 9.60 |
