Kumak
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Kumak Weather in September

Kumak in September sees high daytime temperatures of 26°C (79°F) and nighttime lows of 20°C (68°F). Moderate rainfall is typical, with around 36 mm (1.4 in) for the month.

Rainfall in Kumak in September

You can typically expect 6 days of rain this month, averaging around 36 mm (1.4 in). When rain does fall, showers tend to be light and brief. Most days will be dry.

Temperature in Kumak in September

September in Kumak is generally excellent, with days reaching 26°C (79°F) and nights settling around 20°C (68°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 20°C (68°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Kumak in September

The city usually sees around 237 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Wind Speed in Kumak in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

The water is 23°C (73°F) this month, warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September, October, November and December typically offer the best weather for Kumak.

Kumak Temperature in September

Min Temperature
20°C (68°F)
Max Temperature
26°C (79°F)
Water Temperature
23°C (73°F)
Chance of Rain
18%
Precipitation
36 mm (1.4 in)
Rainy days
6 days
Humidity
74%
Windspeed
3 m/s (6 knots)
Sunshine
237 hours
Percentage Sunshine

Kumak Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Kumak - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Kumak typically stay consistent throughout September, with daily highs averaging around 26°C (79°F). Nights are pleasant, with lows around 18°C (64°F).

Average temperatures in September

Historical weather records for Kumak in September

Browse day-by-day weather records for Kumak spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Kumak historical weather extremes in September

Based on 49 years of weather observations in Kumak between 1976 and 2025, these are the recorded extremes.

  • On September 18, 1988, temperatures climbed to 31°C (88°F), marking the warmest September day on record.
  • Kumak experienced its chilliest September day on September 16, 1976, reaching only 18°C (64°F).
  • Kumak registered its coldest September night on September 5, 2011, with temperatures dropping to 13°C (55°F).

Best Places in New Caledonia in September

Find out more about the weather in New Caledonia and which places have the best travel conditions in this month. See all of New Caledonia in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Kumak in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Some rain is possible, so pack something to handle light showers. With water temperatures around 23°C (73°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Kumak in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

Kumak 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.