May weather forecastKelowna, Canada

May

Weather in May

May marks the pre-summer period in Kelowna, highlighted by longer days and amplified daylight hours. The city's weather becomes increasingly pleasing with the emergence of a comfortable climate. This month, it experiences a noticeable increase in rainfall, reaching up to 45mm (1.77"), as it anticipates the impending summer thunderstorms. These rains contribute to an enriching effect, enhancing the landscape's greenery and vibrancy. It ultimately leads to an augmentation in the visibility, creating perfect conditions for sightseeing and exploration.

Temperature

Kelowna's transition into May sees a rise in the average high-temperature, advancing from a chilly 8.5°C (47.3°F) in April to a moderate 15.9°C (60.6°F). In May, a remarkable difference from daytime highs is noted, as Kelowna records an average temperature of 2.9°C (37.2°F) during the night.

Humidity

The average relative humidity in May is 66%.

Rainfall

May is the month with the most rainfall in Kelowna. Rain falls for 17.5 days and accumulates 45mm (1.77") of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in May is 15h and 26min.
On the first day of the month, sunrise is at 5:32 am and sunset at 8:17 pm. On the last day of May, sunrise is at 4:54 am and sunset at 8:57 pm PDT.

Sunshine

The average sunshine in May in Kelowna is 11h.

UV index

In Kelowna, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

May temperatures vary between a high-temperature of 15.9°C (60.6°F) and a low-temperature of 2.9°C (37.2°F).

The average relative humidity in May in Kelowna is 66%.

The month with the most rainfall in Kelowna is May, when the rain falls for 17.5 days and typically aggregates up to 45mm (1.77") of precipitation.

In Kelowna, Canada, in May, during 17.5 rainfall days, 45mm (1.77") of precipitation is typically accumulated.

May through September are months without snowfall in Kelowna.

In May, it doesn't snow. April is the latest month when it typically snows.

In May, the average day length is 15h and 26min.

In May, on the first day of the month, sunrise is at 5:32 am and sunset at 8:17 pm. On the last day of the month, in Kelowna, sunrise is at 4:54 am and sunset at 8:57 pm PDT.

The average sunshine duration in May is 11h.

In Kelowna, Canada, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Kelowna, Canada

  • Average high temperature in May: 15.9°C

The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is December (-2.6°C).

  • Average low temperature in May: 2.9°C

The month with the highest average low temperature is August (9.3°C).
The coldest months (with the lowest average low temperature) are February and December (-9.8°C).

Average pressure in May
Kelowna, Canada

  • Average pressure in May: 1014.4mbar

The month with the highest atmospheric pressure is January (1021.7mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in May
Kelowna, Canada

  • Average wind speed in May: 6.3km/h

The windiest month (with the highest average wind speed) is November (7.4km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).

Average humidity in May
Kelowna, Canada

  • Average humidity in May: 66%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).

Average rainfall in May
Kelowna, Canada

  • Average rainfall in May: 45mm

The wettest month (with the highest rainfall) is May (45mm).
The driest month (with the least rainfall) is August (13mm).

Average rainfall days in May
Kelowna, Canada

  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is April (19.4 days).
The month with the least rainy days is August (7.7 days).

Average snowfall in May
Kelowna, Canada

  • Average snowfall in May: 0mm

The month with the highest snowfall is February (108mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in May
Kelowna, Canada

  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Kelowna, Canada

  • Average daylight in May: 15h and 24min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in May: 11h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in May
Kelowna, Canada

  • Average sunshine days in May: 9.9 days

The month with the most sunshine days is August (18.4 days).
The month with the least sunshine days is April (7.8 days).

Average UV index in May
Kelowna, Canada

  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).

Average cloud cover in May
Kelowna, Canada

  • Average cloud cover in May: 31

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in May
Kelowna, Canada

  • Average visibility in May: 9km

The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January, February and December (6km).