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September Weather in Hampstead, Canada

Last updated: June 18, 2025

In Hampstead, Canada, the average temperature in September hovers around 17°C (62°F). Expect a minimum of 3°C (38°F) and a maximum reaching up to 31°C (88°F). With an average humidity of 78%, be prepared for some moisture, as you can expect approximately 69 mm (2.7 in) of precipitation spread over 9 days.

September Temperature in Hampstead

In September in Hampstead, the average temperature is 17°C (62°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop to as low as 3°C (38°F). Travelers should be prepared for a range of weather conditions, making layered clothing a wise choice.

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

The chart illustrates September temperature patterns in Hampstead, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hampstead, September typically has an average temperature of 17°C (62°F), with highs reaching up to 31°C (88°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec172028425666727062513624
Data source: Temperature data for Hampstead 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 Hampstead

In Hampstead in September, the precipitation amount is 69 mm (2.7 in) spread over 9 days.

September Precipitation Trends in Hampstead

The chart displays monthly precipitation patterns in Hampstead, 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 Hampstead, September typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec848585120969789996913211589
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hampstead

In Hampstead in September, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.

September Average Humidity in Hampstead

This chart illustrates the average monthly humidity levels in Hampstead, 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 Hampstead is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hampstead

In Hampstead in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Hampstead.

Maximum UV Index Levels in Hampstead for September

The chart shows the monthly maximum UV Index (UVI) for Hampstead 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 Hampstead typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Hampstead 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 Hampstead Compares to Other Months

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

This table compares monthly weather conditions in Hampstead, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)84 mm (3.3 inches)93%low
February Weather-7°C (20°F)85 mm (3.3 inches)92%moderate
March Weather-2°C (29°F)85 mm (3.3 inches)86%moderate
April Weather6°C (42°F)120 mm (4.7 inches)85%high
May Weather13°C (56°F)96 mm (3.8 inches)80%very high
June Weather19°C (67°F)97 mm (3.8 inches)74%very high
July Weather22°C (73°F)89 mm (3.5 inches)76%very high
August Weather21°C (71°F)98 mm (3.9 inches)75%very high
September Weather17°C (62°F)69 mm (2.7 inches)78%high
October Weather10°C (51°F)132 mm (5.2 inches)86%moderate
November Weather2°C (36°F)115 mm (4.5 inches)88%moderate
December Weather-4°C (24°F)89 mm (3.5 inches)89%low

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