Penticton weather in May 2026

Expect daytime maximum temperatures of 19°C in Penticton, British Columbia in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall.

  • 19°C maximum daytime temperature in May in Penticton19
    19°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in May in Penticton10
    10 days with some rainfall
  • 5°C minimum night-time temperature in May in Penticton5
    5°C min night temperature
  • 15 hours of daylight per day in May in Penticton15
    15 hours of daylight per day
  • No heat & humidity in May in Penticton0
    No heat & humidity
  • 35 mm monthly rainfall in May in Penticton35
    35 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Penticton6
    6 (High) UV index

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The May weather guide for British Columbia (Penticton) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How warm is it in Penticton in May?

Daytime temperatures usually reach 17°C in Penticton in May, falling to 8°C at night.

How sunny is it in Penticton in May?

There are normally 7 hours of bright sunshine each day in Penticton in May - that's 47% of daylight hours.

How warm is the sea around Penticton in May?

The average sea temperature around Penticton in May is 12°C.

Does it rain in Penticton in May?

There are usually 11 days with some rain in Penticton in May and the average monthly rainfall is 73mm.

Penticton May sunrise & sunset times

Browse the sunrise and sunset times for Penticton in May 2026. Select a month to view Penticton sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 04:36 19:16
Saturday, 16th May 2026 04:13 19:38
Sunday, 31st May 2026 03:57 19:56

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