Arutanga Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Arutanga, Aitutaki, Cook Islands. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's break down all the details for a clearer picture.
Arutanga is known for its substantial rainfall, with annual precipitation reaching 1875 mm (74 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Arutanga shows significant variation throughout the year. Expect 268 mm (11 in) of precipitation during the wettest month January, distributed over 13 rainy days.
In contrast, June offers drier and sunnier days, with around 67 mm (2.6 in) of rainfall over 12 rainy days.
January, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 186 hours of sunshine in this period. During the driest month June you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Arutanga Temperature page.
Explore Arutanga's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Arutanga spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in the Cook Islands: City Comparison
The map below shows the annual precipitation across the Cook Islands. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Arutanga vs World: Rainfall Compared
Arutanga's average annual precipitation is 1875 mm (74 in). Let's compare this to some popular worldwide tourist destinations:
Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Arutanga's weather, including sunshine hours, humidity levels, and temperature data, visit our Arutanga Climate page.
