September weather forecastMapumai, Cook Islands
September
Weather in September
September brings about subtle changes to the weather with a slight increase in temperature reaching up to 24.2°C (75.6°F), while the lower limit remains around 23.1°C (73.6°F). With its warm and slightly dry weather, September favors outdoor activities. The humidity remains consistent with previous months, preserving that tropical climate feel. Overall, September in Mapumai offers a balance of warm temperatures, moderate rainfall, and pleasant winds, enticing both residents and tourists alike.Temperature
Entering September, Mapumai's average high-temperature reads a still warm 24.2°C (75.6°F), indicating a close resemblance to the previous month's climate. September nights in Mapumai, Cook Islands, register a minor temperature decline, steadying at a still moderately hot 23.1°C (73.6°F).Humidity
The average relative humidity in September is 78%.Rainfall
In Mapumai, Cook Islands, in September, during 12.6 rainfall days, 30mm (1.18") of precipitation is typically accumulated. In Mapumai, during the entire year, the rain falls for 211.1 days and collects up to 1084mm (42.68") of precipitation.Daylight
In Mapumai, Cook Islands, the average length of the day in September is 12h and 0min.On the first day of September in Mapumai, Cook Islands, sunrise is at 06:40 and sunset at 18:24. On the last day of the month, sunrise is at 06:13 and sunset at 18:30 -10.
Sunshine
The average sunshine in September is 7.6h.UV index
The months with the lowest UV index in Mapumai are April, June through October, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 6 suggests these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mapumai, Cook Islands
- Average high temperature in September: 24.2°C
The warmest month (with the highest average high temperature) is March (27.7°C).
The month with the lowest average high temperature is August (23.8°C).
- Average low temperature in September: 23.1°C
The month with the highest average low temperature is March (26.7°C).
The coldest month (with the lowest average low temperature) is August (22.8°C).
Average pressure in September
Mapumai, Cook Islands
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is September (1016.4mbar).
The month with the lowest atmospheric pressure is January (1010.6mbar).
Average wind speed in September
Mapumai, Cook Islands
- Average wind speed in September: 25.1km/h
The windiest month (with the highest average wind speed) is September (25.1km/h).
The calmest month (with the lowest average wind speed) is March (20.4km/h).
Average humidity in September
Mapumai, Cook Islands
- Average humidity in September: 78%
The months with the highest relative humidity are November and December (79%).
The months with the lowest relative humidity are June and August (76%).
Average rainfall in September
Mapumai, Cook Islands
- Average rainfall in September: 30mm
The wettest months (with the highest rainfall) are January and March (155mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days in September
Mapumai, Cook Islands
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is March (23.5 days).
The month with the least rainy days is August (10.3 days).
Average daylight in September /
Average sunshine in September
Mapumai, Cook Islands
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is November (Average sunshine: 8h and 54min).
The month with the least sunshine is June (Average sunshine: 5h and 42min).
Average sunshine days in September
Mapumai, Cook Islands
- Average sunshine days in September: 11 days
The month with the most sunshine days is August (16.3 days).
The month with the least sunshine days is March (5.6 days).
Average UV index in September
Mapumai, Cook Islands
- Average UV index in September: 6
The months with the highest UV index are January, February, March, May, November and December (UV index 7).
The months with the lowest UV index are April, June, July, August, September and October (UV index 6).
Average cloud cover in September
Mapumai, Cook Islands
- Average cloud cover in September: 46
The months with the most cloud cover are January, October, November and December (Cloud cover 49).
The months with the least cloud cover are March, April and September (Cloud cover 46).
Average visibility in September
Mapumai, Cook Islands
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
