Climate averages 1991–2020
Kelowna weather
in May.
A mild, moderately wet month: the 5th warmest and the joint 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Kelowna: daytime highs average 19.9°C and nights cool to about 8.5°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 51 mm of rain on roughly 10 days, which makes May a moderately wet month (the joint 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 22 min on an average May day.
The nearest other city in this atlas is Kamloops (105 km away). In May its highs average 19.9°C, about as warm as Kelowna, with 43 mm of rain.
Among the 86 cities listed in Canada, Kelowna ranks joint 1st of 86 for the warmest May highs and 6th of 86 for the driest May (rainfall, lowest first). The mean May high of those 86 cities is 17.0°C; Kelowna is 2.9°C warmer than that mean.
From May to June, average highs rise by 3.2°C to 23.1°C, and monthly rainfall stays at 51 mm.
The annual picture
May in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Kelowna climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.2°C-4.1°C | -4.1°C | 59 | 13.5 | 8.69 h |
| February | 3.9°C-3.3°C | -3.3°C | 42 | 10.1 | 10.110 h |
| March | 8.0°C0.0°C | 0.0°C | 55 | 11.5 | 11.812 h |
| April | 13.2°C3.9°C | 3.9°C | 43 | 9.7 | 13.714 h |
| May, selected | 19.9°C8.5°C | 8.5°C | 51 | 9.9 | 15.415 h |
| June | 23.1°C11.7°C | 11.7°C | 51 | 9.2 | 16.316 h |
| July | 27.9°C15.6°C | 15.6°C | 30 | 5.3 | 15.916 h |
| August | 27.8°C16.5°C | 16.5°C | 25 | 5.2 | 14.514 h |
| September | 22.2°C12.7°C | 12.7°C | 43 | 7.7 | 12.713 h |
| October | 13.4°C6.3°C | 6.3°C | 69 | 12.1 | 10.811 h |
| November | 5.7°C0.6°C | 0.6°C | 87 | 15.5 | 9.19 h |
| December | 1.3°C-3.1°C | -3.1°C | 66 | 13.5 | 8.28 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Kamloops in MayCanada · 105 kmHigh 19.9°C · Low 8.2°C · 43 mm rain
- Chilliwack in MayCanada · 195 kmHigh 17.5°C · Low 8.0°C · 122 mm rain
- Abbotsford in MayCanada · 220 kmHigh 16.7°C · Low 6.4°C · 118 mm rain
- Maple Ridge in MayCanada · 237 kmHigh 17.1°C · Low 7.2°C · 154 mm rain
- Langley in MayCanada · 245 kmHigh 17.2°C · Low 7.5°C · 85 mm rain
- Coquitlam in MayCanada · 247 kmHigh 17.4°C · Low 7.7°C · 134 mm rain
- Bellingham in MayUnited States · 251 kmHigh 15.9°C · Low 8.1°C · 86 mm rain
- Surrey in MayCanada · 256 kmHigh 16.7°C · Low 7.3°C · 85 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Kelowna) is explained once on the Kelowna year overview and on the Sources, method and limits page.