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December Weather in Ostend, New Zealand

Last updated: August 31, 2025

In December, the average temperature in Ostend, New Zealand hovers around 19°C (67°F), providing a pleasant climate for outdoor activities. Expect a minimum of 13°C (55°F) and a maximum of 24°C (76°F), offering a comfortable range for both warm and cool days. However, be prepared for some rain, as precipitation amounts can reach 70 mm (2.7 in) over about 10 days. With an average humidity level of 78%, the air will feel refreshingly vibrant—perfect for exploring!

December Temperature in Ostend

In December in Ostend, the average temperature is 19°C (67°F). Maximums can reach 24°C (76°F), while minimums can dip as low as 13°C (55°F). This mild weather makes Ostend an ideal destination for travelers looking to enjoy comfortable outdoor activities.

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

The chart illustrates December temperature patterns in Ostend, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostend, December typically has an average temperature of 19°C (67°F), with highs reaching up to 24°C (76°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec686968646157555556596266
Data source: Temperature data for Ostend generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Ostend

In Ostend in December, the precipitation amount is 70 mm (2.7 in) spread over a span of 10 days.

December Precipitation Trends in Ostend

The chart displays monthly precipitation patterns in Ostend, 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. In Ostend, December typically receives around 70 mm (2.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec55839311486117100106106807470
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ostend

In Ostend in December humidity is 78%. With an average temperature of 19°C (67°F), this humidity feels like a warm, heavy blanket enveloping you, making traveling feel both sticky and sluggish as you navigate through the day.

December Average Humidity in Ostend

This chart illustrates the average monthly humidity levels in Ostend, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Ostend is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%76%74%75%80%82%83%81%80%80%80%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ostend

In Ostend in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Ostend.

Maximum UV Index Levels in Ostend for December

The chart shows the monthly maximum UV Index (UVI) for Ostend 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. In December, the maximum UV index in Ostend typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141410743357101113
Data source: Ostend 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.

How December Weather in Ostend Compares to Other Months

Weather in Ostend varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ostend, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Ostend, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)55 mm (2.2 inches)79%extreme
February Weather21°C (69°F)82 mm (3.2 inches)76%extreme
March Weather20°C (68°F)93 mm (3.6 inches)74%very high
April Weather18°C (65°F)114 mm (4.5 inches)74%high
May Weather16°C (61°F)86 mm (3.4 inches)80%moderate
June Weather14°C (57°F)117 mm (4.6 inches)82%moderate
July Weather13°C (55°F)100 mm (3.9 inches)83%moderate
August Weather13°C (56°F)106 mm (4.2 inches)80%moderate
September Weather13°C (56°F)106 mm (4.2 inches)80%high
October Weather15°C (59°F)80 mm (3.2 inches)80%very high
November Weather17°C (63°F)74 mm (2.9 inches)80%extreme
December Weather19°C (67°F)70 mm (2.7 inches)78%extreme

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