December weather forecastMerimbula, Australia
December
Weather in December
December, the first month of the summer in Merimbula, is still a pleasant month, with an average temperature varying between 22.5°C (72.5°F) and 14.7°C (58.5°F).Temperature
December's advent denotes a minor fluctuation in the average high-temperature to a still pleasant 22.5°C (72.5°F) from November's 20.9°C (69.6°F). Nighttime temperatures consistently average a refreshing 14.7°C (58.5°F) during December.Humidity
The average relative humidity in December in Merimbula, Australia, is 75%.Rainfall
In Merimbula, during December, the rain falls for 12.3 days and regularly aggregates up to 41mm (1.61") of precipitation. In Merimbula, during the entire year, the rain falls for 127.9 days and collects up to 407mm (16.02") of precipitation.Sea temperature
In December, the average sea temperature is 19.9°C (67.8°F).Note: The majority of individuals find it unpleasurable to swim in 19.9°C (67.8°F). It becomes progressively harder to manage one's breathing as the water temperature falls below 21°C (69.8°F).
Daylight
The month with the longest days is December, with an average of 14h and 36min of daylight.On the first day of December, sunrise is at 5:34 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:22 pm AEDT.
Sunshine
The month with the most sunshine in Merimbula is December, with an average of 10.1h of sunshine.UV index
In December, the average daily maximum UV index in Merimbula is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 in December translates into these instructions:
Adopt protective measures - It is advised to guard against sun damage. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Merimbula, Australia
- Average high temperature in December: 22.5°C
The warmest month (with the highest average high temperature) is January (24.3°C).
The month with the lowest average high temperature is July (14.5°C).
- Average low temperature in December: 14.7°C
The month with the highest average low temperature is February (16.9°C).
The coldest month (with the lowest average low temperature) is July (8°C).
Average pressure in December
Merimbula, Australia
- Average pressure in December: 1013.1mbar
The month with the highest atmospheric pressure is June (1020.6mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).
Average wind speed in December
Merimbula, Australia
- Average wind speed in December: 13km/h
The windiest months (with the highest average wind speed) are January and September (13.8km/h).
The calmest month (with the lowest average wind speed) is April (12.4km/h).
Average humidity in December
Merimbula, Australia
- Average humidity in December: 75%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Merimbula, Australia
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is February (48mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in December
Merimbula, Australia
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (6.6 days).
Average sea temperature in December
Merimbula, Australia
- Average sea temperature in December: 19.9°C
The best month for swimming (with the highest average sea temperature) is February (22.2°C).
The coldest month (with the lowest average sea temperature) is August (16.4°C).
Average daylight in December /
Average sunshine in December
Merimbula, Australia
- Average daylight in December: 14h and 36min
The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).
- Average sunshine in December: 10h and 6min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is June (Average sunshine: 6h and 30min).
Average sunshine days in December
Merimbula, Australia
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is July (23.4 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in December
Merimbula, Australia
- Average UV index in December: 5
The month with the highest UV index is January (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).
Average cloud cover in December
Merimbula, Australia
- Average cloud cover in December: 35
The month with the most cloud cover is February (Cloud cover 40).
The months with the least cloud cover are May and July (Cloud cover 26).
Average visibility in December
Merimbula, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).





