Last updated: August 31, 2025
In Mont-Dore, New Caledonia, the weather during September brings a delightful mix of mild temperatures and refreshing rainfall. With a maximum temperature reaching 26°C (78°F) and an average of 19°C (67°F), the days remain comfortably warm, while the minimum dips to a cool 14°C (58°F) at night. This month experiences 38 mm (1.5 in) of precipitation spread over approximately 8 days, contributing to a humidity level of 74%, which adds a pleasant tropical touch to the atmosphere. Whether you're exploring lush landscapes or relaxing by the coast, September in Mont-Dore offers a captivating blend of warmth and refreshing breezes, making it an ideal time to visit.
In September, Mont-Dore, New Caledonia, experiences a gentle transition into spring, marked by mild temperatures that invite outdoor exploration. The minimum temperature settles at a refreshing 14°C (58°F), while the average hovers around 19°C (67°F), offering a comfortable backdrop for activities. As the days warm, the maximum temperature climbs to a pleasant 26°C (78°F), making this month a sweet prelude to the warmth of summer. Compared to the chillier winter months of July and August, September showcases a noticeable rise in temperature, signaling the island's vibrant seasonal shift, perfect for enjoying basking in the natural beauty of the surroundings.
In September, Mont-Dore experiences a notable dip in precipitation, receiving only 38 mm (1.5 in) over 8 days, which marks a continuation of the dry trend established in the preceding months of July and August. This amount is significantly lower compared to the wetter earlier months, such as April and February, which saw over 200 mm of rain. The reduced rainfall is characteristic of the transition towards the drier part of the year, suggesting that September offers a brief reprieve from the heavy downpours typical in the earlier months. As the region moves into October, precipitation begins to rise again, highlighting Mont-Dore's dynamic climate patterns throughout the year.
September in Mont-Dore, New Caledonia, marks a noticeable dip in humidity, settling at 74%. This slight decrease follows the more humid months of winter, where July and August recorded the year’s lowest levels at 70% and 73% respectively. As the seasons transition into spring, the humidity begins to climb again, with October expected to rise to 76%. Overall, this September trend reflects a gradual shift towards a more humid atmosphere leading into the year’s end, which typically sees humidity levels returning to the more familiar 82% observed during the summer months.
September in Mont-Dore, New Caledonia, sees a UV Index of 11, categorized as extreme, which means you’ll still need to take care to avoid sunburn with a rapid burn time of just 10 minutes. This marks a slight increase from August's UV Index of 10, reflecting a seasonal trend towards more intense sun exposure as the year progresses. Notably, the months from September to December maintain high UV levels, consistently falling within the extreme or very high categories. For those planning outdoor activities, it’s essential to stay informed about the UV conditions to protect your skin. For a detailed forecast, check out the Mont-Dore UV Index.
UV Risk Categories
As September unfolds in Mont-Dore, New Caledonia, the sun graces the region with a delightful 284 hours of sunshine, marking a high point of the year. This vibrant month continues the trend of ample daylight characteristic of the spring season, following the slightly lower 265 hours in August. After the sunniest months of the year, November and December, which boast impressive totals of 314 and 312 hours respectively, September’s warmth hints at the approaching summer, providing a perfect backdrop for outdoor adventures. With the days getting longer, it’s an ideal time to soak in the natural beauty of this stunning locale before the sun reaches its zenith in the months to come.
September in Mont-Dore, New Caledonia, offers a promising 48% chance of sunny weather, maintaining a delightful balance as the season transitions. While the likelihood of sunshine dips slightly from August's peak of 52%, it remains competitive compared to the preceding months. Following a steady upward trend from the cooler winter months, which saw a gradual increase, September marks a pivotal moment as warmer days approach. This makes it an ideal time for outdoor activities, benefiting from consistently bright weather as the island heads into the vibrant spring season.
In September, Mont-Dore, New Caledonia, enjoys approximately 11 hours of daylight, mirroring the duration seen in both April and May. As the southern hemisphere transitions from winter to spring, daylight begins to lengthen once again, following the patterns observed in the preceding months of August and the upcoming October. This gradual increase in daylight is part of a broader trend, where the year starts with the longest days in January and November, dipping to the shortest in June and July. Overall, September's daylight duration reflects a balanced midpoint, offering ample time for exploration and enjoyment as nature awakens from its winter slumber.
As September rolls into Mont-Dore, the gentle winds begin to pick up, with an average speed of 4.8 m/s (11 mph), showcasing a slight resurgence after the calmer months of winter. Following a steady decline through June and July, where wind speeds dipped to 3.9 m/s (9 mph), the arrival of September brings a refreshing contrast, aligning closely with the brisk conditions found in the early part of the year. Notably, it sits just below the peak observed in January, which recorded the highest average wind speed of the year at 4.9 m/s (11 mph). This reawakening of the winds not only invigorates the landscape but also hints at the transition into the more dynamic spring months ahead, promising both excitement and fresh breezes for locals and visitors alike.
Weather in Mont-Dore varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mont-Dore, focusing on differences in temperature, rainfall, humidity, and UV levels.
September typically enjoys milder temperatures with a minimum of 14°C (58°F) and a maximum of 26°C (78°F), resulting in a comfortable average of 19°C (67°F). The month experiences relatively low rainfall, totaling 38 mm (1.5 in) over about 8 days, with a humidity level of 74%. In contrast, January sees warmer conditions, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 29°C (84°F), averaging 24°C (76°F). However, it is also wetter, with precipitation rising to 127 mm (5.0 in) spread across 14 days, and a higher humidity level of 82%. For more insights on January weather in this region, check out Mont-Dore weather in January.
September and February display contrasting weather patterns. In September, temperatures range from a mild minimum of 14°C (58°F) to a pleasant maximum of 26°C (78°F), with an average of 19°C (67°F). The month experiences relatively low precipitation of 38 mm (1.5 in) spread over 8 days and a humidity level of 74%. In contrast, February sees warmer temperatures, with a minimum of 20°C (69°F) and a maximum of 29°C (85°F), averaging 25°C (77°F). However, it also brings significantly higher rainfall, totaling 207 mm (8.1 in) across 20 days and a humidity increase to 83%. For more detailed information on the weather during this month, check out Mont-Dore weather in February.
When comparing the weather patterns of September and March, we notice a significant difference in temperature and precipitation. September tends to have milder temperatures, with a minimum of 14°C (58°F) and an average of 19°C (67°F), peaking at 26°C (78°F). In contrast, March is warmer, featuring a minimum of 20°C (69°F) and averaging 25°C (77°F), with maximum temperatures reaching 29°C (85°F). Rainfall also varies greatly between the two months; September sees 38 mm (1.5 in) of precipitation over 8 days, while March experiences a substantial increase with 170 mm (6.7 in) spread across 19 days. Additionally, humidity levels in March are slightly higher at 82%, compared to September's 74%. For a closer look at March’s weather details, visit Mont-Dore weather in March.
When comparing September and April weather, September generally features milder conditions with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (78°F). The month experiences moderate rainfall, totaling 38 mm (1.5 in) over about 8 days, and humidity levels around 74%. In contrast, April is typically warmer with an average temperature between 18°C (65°F) and 28°C (83°F). However, it also brings significantly more rainfall, with 209 mm (8.2 in) spread across 19 days, and a higher humidity level of 82%. For a more detailed look at weather conditions in April, you can visit Mont-Dore weather in April.
When comparing the weather in September and May, it's clear that both months offer distinct experiences. September boasts a milder temperature range with a minimum of 14°C (58°F) and an average of 19°C (67°F), peaking at 26°C (78°F), while experiencing only 38 mm (1.5 in) of precipitation over about 8 days and a humidity level of 74%. In contrast, May sees higher temperatures, with a minimum of 17°C (63°F) and an average of 22°C (71°F), maxing out at 27°C (80°F). However, May is notably wetter, receiving 120 mm (4.7 in) of rain over approximately 15 days, coupled with a slightly higher humidity at 78%. For a more detailed glimpse into May's climate, you can check Mont-Dore weather in May.
In both June and September, temperatures are relatively mild, with maximums reaching around 26°C (78°F) in September and 26°C (80°F) in June. However, September tends to be slightly cooler on average, with a typical temperature of 19°C (67°F) compared to June's average of 20°C (68°F). Precipitation is slightly lower in September, with 38 mm (1.5 in) over 8 days, while June experiences 45 mm (1.8 in) over 9 days, indicating a wetter month. Humidity levels are similar in both months, with September at 74% and June at 73%. For a detailed look at June weather conditions, you can visit Mont-Dore weather in June.
In comparing the weather between September and July, we see that both months share a minimum temperature of 14°C (58°F) and an average of 19°C (67°F). However, September tends to be slightly warmer, with a maximum temperature reaching 26°C (78°F), compared to July's 24°C (75°F). Precipitation levels are similar, with September receiving 38 mm (1.5 in) over 8 days and July experiencing 39 mm (1.5 in) across 7 days. Additionally, September has a higher humidity level at 74%, while July is slightly lower at 70%. For more details on July's weather, you can refer to Mont-Dore weather in July.
In comparing the weather of September and August, September offers a slightly cooler experience with minimum temperatures around 14°C (58°F) and an average maximum of 26°C (78°F), compared to August's minimum of 15°C (59°F) and an average high of 24°C (76°F). Precipitation also decreases in September with 38 mm (1.5 in) falling over 8 days, whereas August sees more rain, totaling 58 mm (2.3 in) over 6 days. Humidity levels remain quite similar, with September at 74% and August at 73%. For more specific insights into August weather, you can visit Mont-Dore weather in August.
In September, temperatures start to cool down with a minimum of 14°C and an average of 19°C, peaking at 26°C. The month sees moderate rainfall, with about 38 mm falling over 8 days, and humidity levels averaging 74%. In contrast, October experiences slightly warmer temperatures, with a minimum of 17°C, an average of 21°C, and a maximum of 26°C. However, rainfall increases to 81 mm across 11 days, raising humidity to 76%. For more detailed insights into October weather patterns, you can check Mont-Dore weather in October.
September and November offer distinct weather patterns, with November being notably warmer and more humid. In September, temperatures range from a minimum of 14°C (58°F) to a maximum of 26°C (78°F), while November sees a minimum of 17°C (64°F) and a maximum of 29°C (85°F). Precipitation increases slightly from 38 mm (1.5 in) over 8 days in September to 51 mm (2.0 in) across 9 days in November. Additionally, humidity rises from 74% in September to 82% in November, adding to the overall warmth of the latter month. For a detailed overview of November's weather in this region, you can visit Mont-Dore weather in November.
In comparing the weather from September to December, we see a notable increase in both temperature and precipitation. In September, temperatures range from a minimum of 14°C (58°F) to a maximum of 26°C (78°F), with an average of 19°C (67°F). The month experiences around 38 mm (1.5 in) of precipitation over 8 days, with humidity at 74%. In contrast, December brings warmer temperatures, with a minimum of 19°C (67°F), an average of 24°C (75°F), and a maximum of 29°C (84°F). Additionally, December sees a significant rise in precipitation, totaling 140 mm (5.5 in) over 16 days, alongside a slight increase in humidity to 82%. For a more detailed look at the weather during this month, you can check Mont-Dore weather in December.
As September graces Mont-Dore, the weather reflects a gentle transition, characterized by pleasant warmth and a moderate humidity of 74%. This month typically showcases an inviting average temperature that stands out from the cooler months preceding it, with occasional rainfall adding to the lush allure of the region. While frequent precipitation may occur on about eight days, the overall environment remains vibrant and suitable for outdoor activities, making September an appealing choice for visitors. For a deeper understanding of the climate throughout the year, explore the detailed insights at Mont-Dore Climate.