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August Weather in Sussex, Canada

Last updated: June 18, 2025

The average temperature in Sussex, Canada during August hovers around 19°C (66°F). Temperatures can vary considerably, with minimums dipping to 5°C (41°F) and maximums soaring up to 31°C (87°F). Expect 81 mm (3.2 in) of precipitation spread across 11 days, contributing to an average humidity of 82%.

August Temperature in Sussex

In August in Sussex, the average temperature is 19°C (66°F). The maximum can reach 31°C (87°F) and the minimum can be as low as 5°C (41°F). This makes Sussex an ideal destination for travelers seeking a mild climate with a range of temperatures to enjoy outdoor activities.

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

The chart illustrates August temperature patterns in Sussex, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sussex, August typically has an average temperature of 19°C (66°F), with highs reaching up to 31°C (87°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec202128405060666658473625
Data source: Temperature data for Sussex 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 Sussex

In Sussex in August, the precipitation amount is 81 mm (3.2 in) over a span of 11 days.

August Precipitation Trends in Sussex

The chart displays monthly precipitation patterns in Sussex, 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 Sussex, August typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec101104811051079987819193160114
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Sussex

In Sussex in August humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

August Average Humidity in Sussex

This chart illustrates the average monthly humidity levels in Sussex, 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 Sussex is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%84%82%80%78%82%84%82%82%82%84%82%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Sussex

In Sussex in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Sussex.

Maximum UV Index Levels in Sussex for August

The chart shows the monthly maximum UV Index (UVI) for Sussex 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 Sussex typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357910887532
Data source: Sussex 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 Sussex Compares to Other Months

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

This table compares monthly weather conditions in Sussex, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)101 mm (4.0 inches)83%low
February Weather-6°C (21°F)104 mm (4.1 inches)84%moderate
March Weather-2°C (28°F)80 mm (3.2 inches)82%moderate
April Weather4°C (40°F)105 mm (4.1 inches)80%high
May Weather10°C (50°F)107 mm (4.2 inches)78%very high
June Weather15°C (60°F)99 mm (3.9 inches)82%very high
July Weather19°C (66°F)87 mm (3.4 inches)84%very high
August Weather19°C (66°F)81 mm (3.2 inches)82%very high
September Weather15°C (58°F)91 mm (3.6 inches)82%high
October Weather9°C (48°F)93 mm (3.7 inches)82%moderate
November Weather2°C (36°F)160 mm (6.3 inches)84%moderate
December Weather-4°C (25°F)114 mm (4.5 inches)82%low

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