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September Weather in Melville, Canada

Last updated: June 18, 2025

In September, the average temperature in Melville, Canada is a mild 12°C (53°F). While the mercury can dip as low as -5°C (24°F), it can also soar to a warm 30°C (87°F). Expect about 55 mm (2.2 in) of precipitation over 8 days, and be prepared for moderate humidity, which hovers around 73%.

September Temperature in Melville

In September in Melville, the average temperature is 12°C (53°F). Maximum temperatures can reach 30°C (87°F), while the minimum can drop as low as -5°C (24°F). Be prepared for a wide range of weather to fully enjoy your travels.

September Weather in Melville: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Melville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Melville, September typically has an average temperature of 12°C (53°F), with highs reaching up to 30°C (87°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec7321345262666353372112
Data source: Temperature data for Melville 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.

September Precipitation in Melville

In Melville in September, the precipitation amount is 55 mm (2.2 in) over the course of 8 days.

September Precipitation Trends in Melville

The chart displays monthly precipitation patterns in Melville, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Melville, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec161327313990645555292819
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Melville

In Melville in September humidity is 73%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities somewhat uncomfortable and requiring layers to keep warm while exploring.

September Average Humidity in Melville

This chart illustrates the average monthly humidity levels in Melville, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Melville is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%94%91%79%71%65%75%76%73%77%88%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Melville

In Melville in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Melville, you can refer to this Hourly UV Index in Melville.

Maximum UV Index Levels in Melville for September

The chart shows the monthly maximum UV Index (UVI) for Melville in September, 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 September, the maximum UV index in Melville typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235679886421
Data source: Melville September 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 September Weather in Melville Compares to Other Months

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

This table compares monthly weather conditions in Melville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-14°C (7°F)16 mm (0.6 inches)91%low
February Weather-16°C (3°F)13 mm (0.5 inches)94%moderate
March Weather-6°C (21°F)27 mm (1.1 inches)91%moderate
April Weather1°C (34°F)31 mm (1.2 inches)79%high
May Weather11°C (52°F)39 mm (1.6 inches)71%high
June Weather17°C (62°F)90 mm (3.5 inches)65%very high
July Weather19°C (67°F)64 mm (2.5 inches)75%very high
August Weather17°C (63°F)55 mm (2.2 inches)76%very high
September Weather12°C (53°F)55 mm (2.2 inches)73%high
October Weather3°C (38°F)29 mm (1.1 inches)77%moderate
November Weather-6°C (21°F)28 mm (1.1 inches)88%low
December Weather-11°C (12°F)19 mm (0.7 inches)95%low

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