December Weather in Merimbula, Australia

Last updated: February 25, 2025

Discover the charming December climate of Merimbula, Australia, where the temperatures offer a delightful range from a crisp 13°C (55°F) to a maximum of 28°C (82°F). As the summer heat begins to settle in, the average temperature hovers around a pleasant 18°C (65°F), making it an ideal time for outdoor activities. However, be prepared for some rainy days, as Merimbula experiences approximately 109 mm (4.3 in) of precipitation over 12 days this month. With a humidity level of 63%, the air carries a refreshing quality, perfect for enjoying the stunning coastal vistas and vibrant local culture.

December Temperature in Merimbula

In December, Merimbula, Australia begins to bask in the warmth of summer, with temperatures reflecting a delightful progression from the cooler months. The minimum temperature rises to 13°C (55°F), while the average settles at a pleasant 18°C (65°F), providing a comfortable backdrop for outdoor activities. As the sun shines brightly, the maximum reaches a warm 28°C (82°F), enticing beachgoers and nature enthusiasts alike. This increase in warmth marks a clear shift from the milder temperatures of spring, celebrating the arrival of longer days and vibrant coastal life, making December an enticing time to experience Merimbula’s natural beauty.

December Weather in Merimbula: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Merimbula, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec696867645956545456596265
Data source: Temperature data for Merimbula generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Merimbula

December in Merimbula marks the culmination of a wet year, with the month receiving an impressive 109 mm (4.3 in) of precipitation over 12 days. This robust rainfall exceeds that of many preceding months, reflecting the region's shift into its wetter summer season. Notably, December's totals highlight a trend of increasing moisture from October's 88 mm (3.5 in), which sets the stage for a lush and vibrant landscape. The consistent precipitation not only nourishes the local flora but also signifies the area's climatic rhythm, as Merimbula prepares for the lush growth that follows the summer rains.

December Precipitation Trends in Merimbula

The chart displays monthly precipitation patterns in Merimbula, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5295107331016850603488100109
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Merimbula

In Merimbula, Australia, December brings a return to a cooler, more comfortable humidity level of 63%, matching that of January and November. As we reflect on the year, a noticeable trend emerges: humidity levels steadily increase from the beginning of the year, peaking at 83% in July. This mid-year high hints at a trend where the colder months can feel quite muggy, with May through August consistently showcasing elevated humidity. However, as the calendar year winds down, the humidity notably drops back to a more moderate range, offering a refreshing respite leading into the New Year.

December Average Humidity in Merimbula

This chart illustrates the average monthly humidity levels in Merimbula, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec62%69%73%78%81%81%83%78%72%63%63%63%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Merimbula

In December, Merimbula experiences the peak of its UV Index, soaring to an intense 14, which classifies it as having an extreme exposure category. This means that sunburn can occur in just 10 minutes of unprotected skin exposure. Following the trend of previous months, December's UV levels are consistent with November's extreme rating, and are on par with the high indices seen in January and February. As the summer season kicks off, it’s crucial for residents and visitors alike to take necessary precautions under the sun. To stay informed and safe, check out the detailed Merimbula UV Index for your outdoor activities.

Maximum UV Index Levels in Merimbula for December

The chart shows the monthly maximum UV Index (UVI) for Merimbula in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec14121174335791114
Data source: Merimbula December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Merimbula

December in Merimbula, Australia, ushers in a delightful surge of sunshine, boasting an impressive 320 hours of glorious daylight—the highest of the year. As the year transitions towards its end, this month stands out not only for its warmth but also for the gradual increase in sunshine hours observed since the cooler days of June. The trend reveals a steady climb from the year’s lowest sunshine at 220 hours in June, creating a sense of anticipation as the warmer months approach. With each passing month, daylight hours have expanded, culminating in the bright and festive atmosphere of December, perfect for enjoying all that Merimbula has to offer.

Monthly Sunshine Duration in Merimbula: December Highlighted

The December sunshine duration represents the total number of hours Merimbula experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec258h272h282h253h237h220h238h254h278h298h300h320h
Data source: Merimbula December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Merimbula During December

In December, Merimbula, Australia, experiences a 39% chance of sunny weather, marking a slight decline as the year draws to a close. This dip follows November's significantly lower 25% likelihood, suggesting a pattern of fluctuating sunshine as summer approaches. Notably, as the seasons transition from the cooler months, where chances ranged between 40% to 60%, December lags behind its warmer counterparts like April and August, which boast more favorable sun percentages. While the festive spirit of the holiday season brings excitement, those planning outdoor activities may want to keep an eye on the forecast, as cloudy days may be more prevalent before the summer heat takes hold.

Percentage of Sunny Days in December in Merimbula

The chart illustrates the percentage of sunny days in Merimbula throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Merimbula experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%40%42%60%53%46%53%56%58%45%25%39%
Data source: Merimbula December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Merimbula in December

In Merimbula, Australia, December marks the pinnacle of daylight, basking in an impressive 14 hours of sunshine. This extends the trend of increasing daylight from the depths of winter, where June and July share the shortest days, each with just 9 hours. As spring transitions to summer, the days gradually lengthen, peaking in December before returning to 13 hours of daylight in both January and November. This rhythmic pattern not only enhances outdoor activities during the vibrant summer months but also underscores the beauty of seasonal change in this coastal paradise. As the year winds down, the sun sets later, giving residents and visitors alike ample time to enjoy the stunning beaches and natural wonders that Merimbula has to offer.

Average Daylight Hours in Merimbula for December

The chart illustrates the variation in daylight duration in Merimbula throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 22m13h 27m12h 17m11h 6m10h 7m9h 38m9h 52m10h 43m11h 51m13h 2m14h 5m14h 38m
Data source: Merimbula daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Merimbula

In December, Merimbula experiences an average wind speed of 5.6 m/s (13 mph), maintaining a consistent breeze that characterizes the coastal air. As the year progresses, the peak winds occur in the earlier months, with January and February showing the strongest gusts at 6.0 m/s (13 mph) and 6.4 m/s (14 mph), respectively. Winds begin to moderate in the latter part of the year, particularly during the cooler months of April and July, where they dip to 4.5 m/s (10 mph). Interestingly, the breezes slightly strengthen again in the final months, with November and December achieving a harmonious rhythm of 5.7 m/s (13 mph) and 5.6 m/s (13 mph). This gentle push of wind provides a refreshing backdrop for the sun-kissed shores, inviting both relaxation and adventure.

Average December Wind Speed in Merimbula

The chart displays monthly wind speed patterns in Merimbula, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.06.46.14.55.35.44.55.35.75.45.75.6 m/s
Data source: Merimbula December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Merimbula Compares to Other Months

The weather in Merimbula changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Merimbula and find detailed weather information for every month.

In comparing the weather between December and January, both months offer relatively warm temperatures, with January slightly warmer on average. December experiences a minimum temperature of 13°C and an average of 18°C, while January has a minimum of 14°C and an average of 20°C. The maximum temperature remains almost constant, with December reaching up to 28°C and January slightly higher at 29°C. Notably, January sees a significant drop in precipitation, with only 52 mm over 8 days compared to December’s 109 mm over 12 days, making it a drier month overall. Humidity levels are quite similar, with December at 63% and January at 62%. For a more detailed look at January weather, you can check Merimbula weather in January.

In December, temperatures range from a minimum of 13°C (55°F) to a maximum of 28°C (82°F), with an average temperature of 18°C (65°F). The month experiences relatively high humidity levels at 63% and receives approximately 109 mm (4.3 in) of rainfall over 12 days. In contrast, February brings slightly warmer conditions, with minimum temperatures of 14°C (58°F) and an average of 20°C (68°F), peaking at 28°C (83°F). This month sees a decrease in total precipitation, recording 95 mm (3.8 in) over 11 days, while humidity rises to 69%. For more detailed insights, you can check Merimbula weather in February.

In December, the weather features a warm temperature range with a minimum of 13°C (55°F) and a maximum of 28°C (82°F), averaging around 18°C (65°F). The month experiences about 109 mm (4.3 in) of precipitation over 12 days, accompanied by humidity levels at 63%. In contrast, March remains similarly warm with a slightly higher average temperature of 19°C (67°F), while still peaking at 28°C (83°F). Precipitation slightly decreases to 107 mm (4.2 in) spread over 13 days, and humidity rises to 73%. While both months present warm conditions, March tends to be a bit more humid and has marginally more precipitation. For additional details, you can check Merimbula weather in March.

In December, the weather is generally warmer with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 28°C (82°F), accompanied by an average temperature of 18°C (65°F). December also sees higher precipitation levels at 109 mm (4.3 in) over 12 days and a humidity level of 63%. In contrast, April experiences slightly cooler temperatures, with a minimum of 12°C (54°F) and a maximum of 27°C (81°F), while maintaining a similar average temperature of 18°C (64°F). However, April boasts significantly lower precipitation at just 33 mm (1.3 in) over 7 days, along with a higher humidity level of 78%. For more detailed insights on April weather, check Merimbula weather in April.

In December, the weather tends to be warmer, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 28°C (82°F) and an average temperature of 18°C (65°F). This month also experiences higher humidity levels at 63% and significantly more precipitation, totaling 109 mm (4.3 in) across 12 rainy days. In contrast, May has milder temperatures, with a minimum of 10°C (50°F), an average of 15°C (60°F), and a maximum of 22°C (73°F). While May sees slightly less precipitation at 101 mm (4.0 in), it has a lower frequency of rainy days, occurring only 6 times, but humidity is higher at 81%. For a closer look at May's unique climate, check out Merimbula weather in May.

December weather in Merimbula is notably warmer, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 28°C (82°F) and an average of 18°C (65°F). During this month, the area experiences more rainfall, totaling 109 mm (4.3 in) over 12 days, along with a humidity level of 63%. In contrast, June brings cooler conditions, with temperatures peaking at just 18°C (65°F) and dipping as low as 9°C (48°F), while the average temperature is around 13°C (56°F). Rainfall in June is lighter, at 68 mm (2.7 in) across 9 days, and the humidity increases to 81%. For a detailed look at June's climate, check out Merimbula weather in June.

When comparing the weather in December and July, notable contrasts emerge. December boasts higher temperatures, with a minimum of 13°C (55°F) and an average of 18°C (65°F), peaking at 28°C (82°F). In contrast, July experiences cooler conditions, with a minimum of 7°C (45°F) and an average of 12°C (55°F), reaching a maximum of only 18°C (65°F). December also sees more precipitation, totaling 109 mm (4.3 in) over 12 days, while July has significantly less at 50 mm (2.0 in) spread across just 4 days. Additionally, humidity is higher in July at 83%, compared to December's 63%. For a closer look at July's climate, visit Merimbula weather in July.

In comparing December and August weather, December boasts a warmer climate with average temperatures ranging from 18°C (65°F) to a high of 28°C (82°F), while August experiences cooler conditions with averages between 12°C (55°F) and a maximum of 19°C (66°F). Furthermore, December sees significantly more rainfall, with 109 mm (4.3 in) set over 12 days, compared to August’s 60 mm (2.4 in) falling over just 7 days. Humidity levels also differ, peaking at 63% in December whereas August has a higher humidity at 78%. For a closer look at the specifics of August weather, you can check out Merimbula weather in August.

In comparing the weather of December and September, December tends to be warmer overall, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 28°C (82°F), while September's temperatures are cooler, with a minimum of 9°C (48°F) and a maximum of 24°C (75°F). Additionally, December receives significantly more rainfall, with 109 mm (4.3 in) over approximately 12 days, compared to September's 34 mm (1.4 in) over 7 days. Humidity levels are also slightly lower in December at 63%, compared to September's 72%. For more detailed insights, you can check Merimbula weather in September.

In comparing the weather between December and October, December tends to be warmer overall, with average temperatures reaching 18°C (65°F) compared to October's 15°C (59°F). The maximum temperature in December can climb to 28°C (82°F), while October peaks at a milder 25°C (78°F). Both months experience similar levels of humidity at 63%, but December has slightly more rainfall, with 109 mm (4.3 in) of precipitation over 12 days, compared to October's 88 mm (3.5 in) over the same number of days. For more detailed information, you can check Merimbula weather in October.

In comparing the weather of December and November, December generally experiences slightly warmer temperatures, with a minimum of 13°C (55°F) and an average of 18°C (65°F), compared to November's minimum of 10°C (50°F) and an average of 17°C (62°F). The maximum temperatures are also similar, peaking at 28°C (82°F) in December versus 27°C (80°F) in November. Precipitation in December is marginally higher at 109 mm (4.3 in) over 12 days, compared to November's 100 mm (3.9 in) over 10 days. Interestingly, both months share the same humidity level of 63%, providing a consistent feeling in the air. For a more detailed look at November's weather, you can visit Merimbula weather in November.

Compare Merimbula's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Merimbula

December in Merimbula marks the transition into summer, bringing warmer temperatures and increased humidity compared to other months. With average highs hovering around a pleasant 28°C, visitors can enjoy the beach and outdoor activities. However, this month also sees a bit of rain, with precipitation occurring on about 12 days, making it one of the wetter months. Despite these showers, the weather is generally favorable, allowing for a delightful balance of sun and occasional cooling breezes. For a deeper dive into the yearly weather patterns, check out Merimbula Climate.