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August Weather in Belfast, New Zealand

Last updated: August 31, 2025

In August, the average temperature in Belfast, New Zealand hovers around 9°C (48°F), with a charming range between a brisk 1°C (35°F) and a mild 16°C (62°F). Expect about 46 mm (1.8 in) of precipitation spread over 8 days, contributing to an average humidity of 82% that adds a refreshing touch to the atmosphere.

August Temperature in Belfast

In August in Belfast, the average temperature is 9°C (48°F). Maximums can reach 16°C (62°F), while minimums can drop to as low as 1°C (35°F). Travelers should prepare for cool weather and pack accordingly for both mild and chilly conditions.

August Weather in Belfast: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Belfast, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Belfast, August typically has an average temperature of 9°C (48°F), with highs reaching up to 16°C (62°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec636360565248464850535760
Data source: Temperature data for Belfast 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.

August Precipitation in Belfast

In Belfast in August, the precipitation amount is 46 mm (1.8 in) over the course of 8 days.

August Precipitation Trends in Belfast

The chart displays monthly precipitation patterns in Belfast, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Belfast, August typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec474055705266664746566881
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Belfast

In Belfast in August, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.

August Average Humidity in Belfast

This chart illustrates the average monthly humidity levels in Belfast, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Belfast is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%72%77%77%82%84%85%83%82%79%77%75%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Belfast

In Belfast in August, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Belfast, you can check the information here.

Maximum UV Index Levels in Belfast for August

The chart shows the monthly maximum UV Index (UVI) for Belfast in August, 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 August, the maximum UV index in Belfast typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312963223591012
Data source: Belfast August 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 August Weather in Belfast Compares to Other Months

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

This table compares monthly weather conditions in Belfast, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)47 mm (1.8 inches)72%extreme
February Weather17°C (63°F)40 mm (1.6 inches)72%extreme
March Weather16°C (60°F)55 mm (2.2 inches)77%very high
April Weather13°C (56°F)70 mm (2.8 inches)77%high
May Weather11°C (52°F)52 mm (2.1 inches)82%moderate
June Weather9°C (48°F)66 mm (2.6 inches)84%low
July Weather8°C (47°F)66 mm (2.6 inches)85%low
August Weather9°C (48°F)46 mm (1.8 inches)82%moderate
September Weather10°C (50°F)46 mm (1.8 inches)82%moderate
October Weather12°C (53°F)56 mm (2.2 inches)79%very high
November Weather14°C (57°F)68 mm (2.7 inches)77%very high
December Weather16°C (61°F)81 mm (3.2 inches)75%extreme

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