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May Weather in Vancouver Canada

Daily high temperatures increase by 5°F, from 59°F to 65°F, rarely falling below 53°F or exceeding 72°F.

Daily low temperatures increase by 6°F, from 46°F to 52°F, rarely falling below 41°F or exceeding 56°F.

For reference, on July 31, the hottest day of the year, temperatures in Vancouver typically range from 58°F to 73°F, while on January 2, the coldest day of the year, they range from 35°F to 42°F.

Average High and Low Temperature in May in Vancouver

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in May in Vancouver

Average Hourly Temperature in May in VancouverMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJunNowNowvery coldcoldcoolcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Brussels, Belgium (4,864 miles away) is the far-away foreign place with temperatures most similar to Vancouver (view comparison).

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The month of May in Vancouver experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 55% throughout the month.

The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 47% of the time.

For reference, on January 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 74%, while on August 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%.

Cloud Cover Categories in May in Vancouver

Cloud Cover Categories in May in VancouverMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJunMay 143%May 143%May 3147%May 3147%May 1144%May 1144%May 2146%May 2146%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Vancouver, the chance of a wet day over the course of May is essentially constant, remaining around 28% throughout.

For reference, the year's highest daily chance of a wet day is 60% on November 17, and its lowest chance is 11% on August 5.

Probability of Precipitation in May in Vancouver

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during May in Vancouver is decreasing, starting the month at 3.0 inches, when it rarely exceeds 5.2 inches or falls below 1.0 inches, and ending the month at 2.4 inches, when it rarely exceeds 4.1 inches or falls below 0.8 inches.

Average Monthly Rainfall in May in Vancouver

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of May in Vancouver, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 17 minutes, implying an average daily increase of 2 minutes, 34 seconds, and weekly increase of 17 minutes, 55 seconds.

The shortest day of the month is May 1, with 14 hours, 40 minutes of daylight and the longest day is May 31, with 15 hours, 57 minutes of daylight.

Hours of Daylight and Twilight in May in Vancouver

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The latest sunrise of the month in Vancouver is 5:49 AM on May 1 and the earliest sunrise is 38 minutes earlier at 5:11 AM on May 31.

The earliest sunset is 8:30 PM on May 1 and the latest sunset is 39 minutes later at 9:09 PM on May 31.

Daylight saving time is observed in Vancouver during 2024, but it neither starts nor ends during May, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:06 AM and sets 16 hours, 15 minutes later, at 9:21 PM, while on December 21, the shortest day of the year, it rises at 8:05 AM and sets 8 hours, 11 minutes later, at 4:16 PM.

Sunrise & Sunset with Twilight in May in Vancouver

The solar day over the course of May. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in May in Vancouver

Solar Elevation and Azimuth in May in VancouverMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJun0010102020203030404050506000010102020303030404050506060NowNow
northeastsouthwest
Solar elevation and azimuth over the course of May 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for May 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in May in Vancouver

Moon Rise, Set & Phases in May in VancouverMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 811:22 AMApr 811:22 AMApr 234:50 PMApr 234:50 PMMay 78:23 PMMay 78:23 PMMay 236:54 AMMay 236:54 AMJun 65:38 AMJun 65:38 AMJun 216:09 PMJun 216:09 PM6:33 AM6:33 AM8:22 PM8:22 PM8:28 PM8:28 PM6:07 AM6:07 AM5:12 AM5:12 AM8:46 PM8:46 PM8:43 PM8:43 PM4:56 AM4:56 AM4:40 AM4:40 AM10:23 PM10:23 PM9:58 PM9:58 PM5:07 AM5:07 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
May 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
50%3:24 AMSE12:09 PMWSW-7:46 AMS231,838 mi
2
37%3:47 AMESE1:35 PMWSW-8:40 AMS229,543 mi
3
26%4:05 AMESE3:00 PMWSW-9:31 AMS227,615 mi
4
16%4:21 AME4:24 PMW-10:20 AMS226,259 mi
5
8%4:37 AME5:50 PMW-11:09 AMS225,672 mi
6
3%4:53 AMENE7:17 PMWNW-11:59 AMS226,000 mi
7
0%5:12 AMENE8:46 PMWNW-12:51 PMS227,301 mi
8
1%5:35 AMNE10:13 PMNW-1:47 PMS229,523 mi
9
4%6:07 AMNE11:34 PMNW-2:45 PMS232,494 mi
10
10%6:50 AMNE--3:44 PMS235,954 mi
11
18%-12:41 AMNW7:46 AMNE4:42 PMS239,590 mi
12
27%-1:32 AMNW8:53 AMNE5:37 PMS243,089 mi
13
36%-2:08 AMNW10:06 AMNE6:27 PMS246,179 mi
14
46%-2:34 AMNW11:20 AMENE7:13 PMS248,651 mi
15
50%-2:54 AMWNW12:32 PMENE7:55 PMS250,370 mi
16
66%-3:09 AMWNW1:41 PMENE8:35 PMS251,277 mi
17
74%-3:22 AMW2:48 PME9:14 PMS251,377 mi
18
82%-3:34 AMW3:56 PME9:52 PMS250,734 mi
19
89%-3:45 AMW5:04 PMESE10:32 PMS249,460 mi
20
95%-3:58 AMWSW6:14 PMESE11:14 PMS247,694 mi
21
98%-4:13 AMWSW7:27 PMESE11:59 PMS245,591 mi
22
99%-4:31 AMWSW8:43 PMSE--
23
100%-4:56 AMSW9:58 PMSE12:49 AMS243,306 mi
24
99%-5:29 AMSW11:09 PMSE1:44 AMS240,979 mi
25
96%-6:17 AMSW-2:43 AMS238,723 mi
26
91%12:08 AMSE7:19 AMSW-3:44 AMS236,614 mi
27
83%12:54 AMSE8:35 AMSW-4:44 AMS234,698 mi
28
74%1:27 AMSE9:57 AMSW-5:42 AMS232,994 mi
29
63%1:52 AMESE11:21 AMWSW-6:36 AMS231,515 mi
30
50%2:11 AMESE12:45 PMWSW-7:27 AMS230,289 mi
31
40%2:28 AME2:08 PMW-8:15 AMS229,367 mi

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Vancouver is essentially constant during May, remaining around 0% throughout.

For reference, on July 27, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in May in Vancouver

Humidity Comfort Levels in May in VancouverMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AprJunMay 10%May 10%May 310%May 310%May 110%May 110%May 210%May 210%NowNowcomfortablecomfortabledrydryhumidhumid
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Vancouver is essentially constant during May, remaining within 0.2 miles per hour of 3.9 miles per hour throughout.

For reference, on December 4, the windiest day of the year, the daily average wind speed is 6.6 miles per hour, while on August 8, the calmest day of the year, the daily average wind speed is 2.9 miles per hour.

Average Wind Speed in May in Vancouver

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Vancouver throughout May is predominantly from the south, with a peak proportion of 45% on May 31.

Wind Direction in May in Vancouver

Wind Direction in May in VancouverMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%AprJunNowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Vancouver is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Vancouver is increasing during May, rising by 4°F, from 51°F to 56°F, over the course of the month.

Average Water Temperature in May in Vancouver

Average Water Temperature in May in VancouverMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313144°F44°F46°F46°F48°F48°F50°F50°F52°F52°F54°F54°F56°F56°F58°F58°F60°F60°F62°F62°F64°F64°FAprJunMay 151°FMay 151°FMay 3156°FMay 3156°FMay 1153°FMay 1153°FMay 2154°FMay 2154°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Vancouver typically lasts for 8.4 months (258 days), from around March 5 to around November 18, rarely starting before February 9 or after March 25, and rarely ending before October 28 or after December 13.

The month of May in Vancouver is reliably fully within the growing season.

Time Spent in Various Temperature Bands and the Growing Season in May in Vancouver

Time Spent in Various Temperature Bands and the Growing Season in May in Vancouvergrowing seasongrowing seasongrowing seasonMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJun100%May 16100%May 16NowNowvery coldcoldcoolcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Vancouver are gradually increasing during May, increasing by 166°F, from 70°F to 235°F, over the course of the month.

Growing Degree Days in May in Vancouver

The average growing degree days accumulated over the course of May, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Vancouver is gradually increasing during May, rising by 0.8 kWh, from 5.1 kWh to 5.9 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in May in Vancouver

Average Daily Incident Shortwave Solar Energy in May in VancouverMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhAprJunMay 15.1 kWhMay 15.1 kWhMay 315.9 kWhMay 315.9 kWhMay 115.5 kWhMay 115.5 kWhMay 215.8 kWhMay 215.8 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Vancouver are 49.250 deg latitude, -123.119 deg longitude, and 217 ft elevation.

The topography within 2 miles of Vancouver contains only modest variations in elevation, with a maximum elevation change of 417 feet and an average elevation above sea level of 197 feet. Within 10 miles contains only modest variations in elevation (4,209 feet). Within 50 miles also contains extreme variations in elevation (8,730 feet).

The area within 2 miles of Vancouver is covered by artificial surfaces (100%), within 10 miles by artificial surfaces (39%) and water (32%), and within 50 miles by trees (44%) and water (32%).

This report illustrates the typical weather in Vancouver, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Vancouver.

For each station, the records are corrected for the elevation difference between that station and Vancouver according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Vancouver is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Vancouver and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Vancouver and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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