Koumac in september: average Weather, Temperature and Climate
Weather in Koumac in september 2025
The weather in Koumac in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
perfect weather UV index: 6
Weather at 6am
72°F
Clear/Sunny
62% of time
25%
8%
5%
Weather at 12pm
76°F
Clear/Sunny
47% of time
28%
18%
7%
Weather at 6pm
70°F
Clear/Sunny
42% of time
35%
16%
7%
Weather at 3am
70°F
56%
29%
10%
5%
Evolution of daily average temperature and precipitation in Koumac in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Koumac in september.
The climate of Koumac in september is perfect
The climate in september in Koumac is quite dry (with 1.6in of rainfall over 2 days). The weather is better from the previous month since in august it receives an average of 2.5in of precipitation over 2 days.
The climate good around this city this month. Temperatures are up to 76°F. The seasonal minimum is 72°F. Thus, the mean temperature average in september in Koumac is 74°F. Note that seasonal normals are in contrast with those observed in Koumac in september with a maximum record of 83°F in 2010 and a minimum record of 63°F in 2021.
On average, in Koumac, the days of september last 11:58. Sunrise is at 05:59 and sets at 17:57.
With a perfect weather, the month of september is advisable to go in this locality.
Seasonal average climate and temperature of Koumac in september
Check below seasonal norms These datas are set from the weather statements of the last years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 74°F | ||||
| Highest temperature | 76°F | ||||
| Lowest temperature | 72°F | ||||
| Highest record temperature | 83°F (2010) | ||||
| Lowest record temperature | 63°F (2021) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 76°F | ||||
| Lowest sea temperature | 73°F | ||||
| Highest sea temperature | 78°F | ||||
| Wind | |||||
| Wind speed | 18km/h | ||||
| Wind temperature | 72°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.6in | ||||
| Number of days with rainfall | 2 day(s) (6%) | ||||
| Record daily rainfall | 2.8in (2012) | ||||
| Other climate data | |||||
| Humidity | 75% | ||||
| Visibility | 9.8km | ||||
| Cloud cover | 28% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:59 | ||||
| Time of sunset | 17:57 | ||||
| Length of day | 11:58 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last september?
Here is the day by day recorded weather in Koumac in september 2024:
67°F to 77°F
67°F to 79°F
67°F to 76°F
68°F to 74°F
68°F to 74°F
63°F to 74°F
65°F to 76°F
65°F to 76°F
65°F to 77°F
67°F to 76°F
67°F to 77°F
67°F to 76°F
68°F to 77°F
70°F to 76°F
68°F to 76°F
68°F to 72°F
68°F to 72°F
65°F to 74°F
68°F to 74°F
65°F to 74°F
67°F to 77°F
70°F to 79°F
70°F to 77°F
70°F to 77°F
68°F to 79°F
68°F to 77°F
68°F to 79°F
70°F to 79°F
70°F to 83°F
70°F to 79°F
Map: other cities in New Calendonia in september
Cities near Koumac:
| Tiébaghi in september | perfect weather |
| Ouégoa in september | perfect weather |
| Pouébo in september | perfect weather |
| Poingam in september | perfect weather |
| Voh in september | perfect weather |
| Koné in september | good weather |
| Népoui in september | good weather |
| Wala in september | perfect weather |
| Poindimié in september | good weather |
| Ponérihouen in september | good weather |
| Poé in september | perfect weather |
| Bourail in september | perfect weather |
Click over cities on the map for information about the weather in september.
Koumac
perfect weather
good
tolerable
bad
very bad
Weather data for Koumac in september:
Weather data for Koumac for september are derived from an average of the weather forecast since 2009 in Koumac. There is a margin of error and these forecasts are to be considered as general information only. The weather in Koumac can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Koumac.