Muri Weather in September
Muri in September sees high temperatures, with highs around 25°C (77°F) and overnight lows of 22°C (72°F). Rainfall is fairly high at around 81 mm (3.2 in) on average, so pack waterproofs just in case.
Rainfall in Muri in September
Records from the past 30 years suggest around 11 days of rain, with 81 mm (3.2 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Muri in September
September is a good time to be in Muri. Days are perfect, reaching 25°C (77°F), with nights around 22°C (72°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 22°C (72°F), evenings stay pleasantly warm.
Sunshine in Muri in September
The month experiences a moderate amount of sunlight, with 182 hours of sunshine. This provides a nice balance between sunshine and clouds.
Wind Speed in Muri in September
Average wind conditions reach 5 m/s (10 knots) in September. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Muri.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Cook Islands, check out our Muri's climate page.
Muri Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
25°C (77°F)
Chance of Rain
38%
Precipitation
81 mm (3.2 in)
Rainy days
11 days
Humidity
80% *
Windspeed
5 m/s (10 knots) *
Sunshine
182 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Muri typically stay consistent throughout September, with daily highs averaging around 25°C (77°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Muri in September
Browse day-by-day weather records for Muri spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Muri historical weather extremes in September
Our historical data for Muri spans 1976 to 2025, revealing these weather extremes.
- Muri recorded its highest September temperature of 31°C (88°F) on September 11, 2003.
- The coldest September day was on September 12, 1984, with a maximum of 20°C (68°F).
- The lowest overnight temperature recorded in September was 14°C (57°F) (September 3, 2003).
Best Places in the Cook Islands in September
Find out more about the weather in the Cook Islands and which places have the best travel conditions in this month. See all of the Cook Islands in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Muri in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Muri in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Cook Islands, check out our Muri's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Muri climate overview or explore weather in the Cook Islands.
