Regional District of Okanagan-Similkameen (Penticton)
May
Weather in Regional District of Okanagan-Similkameen for May 2026
Your guide to Regional District of Okanagan-Similkameen weather in May - trends and predictions
In general, the average temperature in Regional District of Okanagan-Similkameen at the beginning of May is 17 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.3 °C by the end of May.
The climate of Regional District of Okanagan-Similkameen in May is notably wet, with an average of 11 rainy days, and a total of 38.7 mm of precipitation.
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Temperatures
Rain 🌧️
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20
Dry days
11
Rainy days
0
Snow days
18°/5°
Temperatures
13 km/h
Avg max wind
56 %
Avg humidity
Regional District of Okanagan-Similkameen Weather May
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Temperatures trend during May in Regional District of Okanagan-Similkameen
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May weather in Regional District of Okanagan-Similkameen day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Light rain shower | 17° /0° | 1.3 mm | 5 | |
| 2 May | Patchy rain possible | 20° /2° | 0.1 mm | 5 | |
| 3 May |  Partly cloudy | 15° /5° | 0 mm | 4 | |
| 4 May | Patchy rain possible | 15° /6° | 0 mm | 4 | |
| 5 May | Patchy rain possible | 18° /3° | 0.3 mm | 5 | |
| 6 May |  Patchy light drizzle | 16° /2° | 0.7 mm | 5 | |
| 7 May | Patchy rain possible | 18° /5° | 0.1 mm | 4 | |
| 8 May |  Sunny | 18° /3° | 0 mm | 6 | |
| 9 May | Sunny | 22° /5° | 0 mm | 5 | |
| 10 May | Sunny | 23° /9° | 0 mm | 6 | |
| 11 May |  Overcast | 21° /10° | 0 mm | 5 | |
| 12 May | Sunny | 21° /10° | 0 mm | 6 | |
| 13 May | Patchy rain possible | 18° /8° | 1.9 mm | 5 | |
| 14 May | Partly cloudy | 18° /2° | 0 mm | 5 | |
| 15 May | Sunny | 20° /5° | 0 mm | 5 | |
| 16 May | Patchy rain possible | 16° /7° | 0 mm | 4 | |
| 17 May | Light rain | 14° /6° | 3.5 mm | 4 | |
| 18 May | Light rain shower | 14° /4° | 0.7 mm | 4 | |
| 19 May |  Thundery outbreaks possible | 13° /3° | 3 mm | 4 | |
| 20 May | Patchy rain possible | 21° /10° | 0.4 mm | 5 | |
| 21 May |  Moderate or heavy rain shower | 19° /8° | 4.8 mm | 5 | |
| 22 May | Moderate or heavy rain shower | 12° /1° | 4.4 mm | 3 | |
| 23 May | Moderate or heavy rain shower | 17° /3° | 4.3 mm | 4 | |
| 24 May | Patchy rain possible | 20° /4° | 0.2 mm | 5 | |
| 25 May | Patchy rain possible | 19° /4° | 3.8 mm | 5 | |
| 26 May | Moderate rain at times | 21° /8° | 4.3 mm | 5 | |
| 27 May | Patchy rain possible | 21° /6° | 0.1 mm | 5 | |
| 28 May | Sunny | 23° /6° | 1.5 mm | 6 | |
| 29 May | Sunny | 20° /5° | 3.1 mm | 5 | |
| 30 May | Sunny | 22° /5° | 0 mm | 6 | |
| 31 May | Sunny | 23° /6° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Regional District of Okanagan-Similkameen in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Regional District of Okanagan-Similkameen forecast closer to your planned date for the most up-to-date weather information.
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Regional District of Okanagan-Similkameen in May - FAQ
What are the expected maximum and minimum temperatures in Regional District of Okanagan-Similkameen during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Regional District of Okanagan-Similkameen during May?
In May, Regional District of Okanagan-Similkameen can expect light to moderate rainfall, totaling 38.7 mm across approximately 11 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Regional District of Okanagan-Similkameen during May?
The average wind speed in Regional District of Okanagan-Similkameen during May is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Regional District of Okanagan-Similkameen
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UV exposure in Regional District of Okanagan-Similkameen during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Regional District of Okanagan-Similkameen?Get accurate weather forecasts for Regional District of Okanagan-Similkameen, located at latitude 49.481 and longitude -119.586. Stay updated with localized weather information tailored for Regional District of Okanagan-Similkameen.
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