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May Weather in Farnham, Canada

Last updated: June 18, 2025

In May, the average temperature in Farnham, Canada is a mild 14°C (57°F). However, temperatures can range from a chilly -2°C (29°F) to a sweltering 36°C (97°F). With 100 mm (3.9 in) of precipitation spread over 12 days, you can expect a good chance of rain. Don't forget, the average humidity is around 80%, adding a distinct moistness to the air. Plan accordingly for a dynamic climate!

May Temperature in Farnham

In May in Farnham, the average temperature is 14°C (57°F). Maximum temperatures can reach 36°C (97°F) while minimums can drop as low as -2°C (29°F). Be prepared for a wide range of weather conditions during your travels!

May Weather in Farnham: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Farnham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Farnham, May typically has an average temperature of 14°C (57°F), with highs reaching up to 36°C (97°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec182129435766716961503525
Data source: Temperature data for Farnham 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.

May Precipitation in Farnham

In Farnham in May, the precipitation amount is 100 mm (3.9 in) over the course of 12 days.

May Precipitation Trends in Farnham

The chart displays monthly precipitation patterns in Farnham, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Farnham, May typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec8984871171001111111167414812185
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Farnham

In Farnham in May, humidity is 80%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making travel uncomfortable and sticky, as sweat clings to your skin and the air feels heavy with moisture.

May Average Humidity in Farnham

This chart illustrates the average monthly humidity levels in Farnham, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Farnham is approximately 80%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Farnham

In Farnham in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Farnham.

Maximum UV Index Levels in Farnham for May

The chart shows the monthly maximum UV Index (UVI) for Farnham in May, 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 May, the maximum UV index in Farnham typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Farnham May 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 May Weather in Farnham Compares to Other Months

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

This table compares monthly weather conditions in Farnham, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)89 mm (3.5 inches)93%low
February Weather-6°C (21°F)84 mm (3.3 inches)92%moderate
March Weather-2°C (29°F)86 mm (3.4 inches)86%moderate
April Weather6°C (43°F)117 mm (4.6 inches)85%high
May Weather14°C (57°F)100 mm (3.9 inches)80%very high
June Weather19°C (66°F)111 mm (4.4 inches)74%very high
July Weather22°C (71°F)111 mm (4.4 inches)76%very high
August Weather21°C (69°F)116 mm (4.6 inches)75%very high
September Weather16°C (61°F)74 mm (2.9 inches)78%high
October Weather10°C (50°F)148 mm (5.8 inches)86%moderate
November Weather1°C (35°F)121 mm (4.8 inches)88%moderate
December Weather-4°C (25°F)85 mm (3.3 inches)89%low

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