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May Weather in Willowmore South Africa

Daily high temperatures decrease by 6°F, from 70°F to 64°F, rarely falling below 53°F or exceeding 81°F.

Daily low temperatures decrease by 5°F, from 46°F to 41°F, rarely falling below 34°F or exceeding 53°F.

For reference, on January 15, the hottest day of the year, temperatures in Willowmore typically range from 56°F to 84°F, while on July 10, the coldest day of the year, they range from 38°F to 61°F.

Average High and Low Temperature in May in Willowmore

Average High and Low Temperature in May in WillowmoreMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313130°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°FAprJunMay 170°FMay 170°F46°F46°FMay 3164°FMay 3164°F41°F41°FMay 1168°FMay 1168°F45°F45°FMay 2166°FMay 2166°F43°F43°F
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 Willowmore

Average Hourly Temperature in May in WillowmoreMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMAprJunvery coldvery coldcoldcoldcoolcoolcomfortable
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.

Santiago, Chile (5,214 miles away) is the far-away foreign place with temperatures most similar to Willowmore (view comparison).

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The month of May in Willowmore experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 40% throughout the month. The highest chance of overcast or mostly cloudy conditions is 42% on May 10.

The clearest day of the month is May 1, with clear, mostly clear, or partly cloudy conditions 61% of the time.

For reference, on September 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 42%, while on February 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 85%.

Cloud Cover Categories in May in Willowmore

Cloud Cover Categories in May in WillowmoreMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJunFeb 1185%Feb 1185%May 161%May 161%May 3160%May 3160%May 1158%May 1158%May 2159%May 2159%clearmostly 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 Willowmore, the chance of a wet day over the course of May is essentially constant, remaining around 10% throughout.

For reference, the year's highest daily chance of a wet day is 23% on February 25, and its lowest chance is 8% on May 22.

Probability of Precipitation in May in Willowmore

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 Willowmore is essentially constant, remaining about 0.9 inches throughout, and rarely exceeding 2.4 inches.

Average Monthly Rainfall in May in Willowmore

Average Monthly Rainfall in May in WillowmoreMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inAprJunMay 11.0 inMay 11.0 inMay 310.8 inMay 310.8 inMay 110.8 inMay 110.8 inMay 210.8 inMay 210.8 in
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 Willowmore, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 40 minutes, implying an average daily decrease of 1 minute, 20 seconds, and weekly decrease of 9 minutes, 17 seconds.

The shortest day of the month is May 31, with 10 hours, 6 minutes of daylight and the longest day is May 1, with 10 hours, 46 minutes of daylight.

Hours of Daylight and Twilight in May in Willowmore

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 earliest sunrise of the month in Willowmore is 7:00 AM on May 1 and the latest sunrise is 21 minutes later at 7:20 AM on May 31.

The latest sunset is 5:45 PM on May 1 and the earliest sunset is 19 minutes earlier at 5:26 PM on May 31.

Daylight saving time is not observed in Willowmore during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:13 AM and sets 14 hours, 22 minutes later, at 7:35 PM, while on June 20, the shortest day of the year, it rises at 7:29 AM and sets 9 hours, 57 minutes later, at 5:26 PM.

Sunrise & Sunset with Twilight in May in Willowmore

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 Willowmore

Solar Elevation and Azimuth in May in WillowmoreMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMAprJun001010202020303040500001010202030303040
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 Willowmore

Moon Rise, Set & Phases in May in WillowmoreMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 88:22 PMApr 88:22 PMApr 241:50 AMApr 241:50 AMMay 85:23 AMMay 85:23 AMMay 233:54 PMMay 233:54 PMJun 62:38 PMJun 62:38 PMJun 223:09 AMJun 223:09 AM6:07 AM6:07 AM6:03 PM6:03 PM5:33 PM5:33 PM7:13 AM7:13 AM7:19 AM7:19 AM5:44 PM5:44 PM5:12 PM5:12 PM8:10 AM8:10 AM7:21 AM7:21 AM5:09 PM5:09 PM4:41 PM4:41 PM8:03 AM8:03 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%-1:49 PMWSW-6:32 AMN232,842 mi
2
42%12:17 AMESE2:26 PMWSW-7:25 AMN230,455 mi
3
30%1:27 AMESE2:59 PMWSW-8:16 AMN228,353 mi
4
20%2:36 AME3:29 PMW-9:05 AMN226,736 mi
5
11%3:45 AME3:59 PMW-9:54 AMN225,810 mi
6
4%4:55 AME4:31 PMWNW-10:44 AMN225,747 mi
7
1%6:07 AMENE5:05 PMWNW-11:36 AMN226,648 mi
8
0%7:19 AMENE5:44 PMWNW-12:32 PMN228,506 mi
9
2%8:32 AMENE6:29 PMWNW-1:31 PMN231,201 mi
10
7%9:42 AMENE7:22 PMNW-2:32 PMN234,502 mi
11
14%10:44 AMNE8:21 PMNW-3:33 PMN238,110 mi
12
23%11:39 AMENE9:23 PMWNW-4:31 PMN241,706 mi
13
32%12:23 PMENE10:25 PMWNW-5:25 PMN244,993 mi
14
42%1:00 PMENE11:26 PMWNW-6:13 PMN247,737 mi
15
50%1:32 PMENE--6:58 PMN249,773 mi
16
62%-12:25 AMWNW1:59 PMENE7:39 PMN251,011 mi
17
71%-1:21 AMW2:23 PME8:19 PMN251,431 mi
18
79%-2:16 AMW2:47 PME8:57 PMN251,076 mi
19
87%-3:11 AMW3:10 PME9:36 PMN250,041 mi
20
93%-4:06 AMW3:35 PMESE10:17 PMN248,455 mi
21
97%-5:04 AMWSW4:03 PMESE11:00 PMN246,469 mi
22
100%-6:04 AMWSW4:34 PMESE11:47 PMN244,241 mi
23
100%-7:06 AMWSW5:12 PMESE--
24
100%-8:10 AMWSW5:57 PMESE12:38 AMN241,918 mi
25
98%-9:14 AMSW6:50 PMSE1:34 AMN239,625 mi
26
93%-10:12 AMSW7:52 PMSE2:32 AMN237,452 mi
27
87%-11:04 AMWSW8:59 PMESE3:31 AMN235,457 mi
28
78%-11:49 AMWSW10:09 PMESE4:28 AMN233,666 mi
29
68%-12:27 PMWSW11:18 PMESE5:22 AMN232,095 mi
30
50%-1:01 PMWSW-6:13 AMN230,762 mi
31
45%12:26 AME1:31 PMW-7:01 AMN229,706 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 Willowmore is essentially constant during May, remaining around 0% throughout.

For reference, on February 11, the muggiest day of the year, there are muggy conditions 1% of the time, while on April 21, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in May in Willowmore

Humidity Comfort Levels in May in WillowmoreMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%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%comfortablecomfortabledrydry
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 Willowmore is gradually increasing during May, increasing from 8.0 miles per hour to 9.0 miles per hour over the course of the month.

For reference, on July 18, the windiest day of the year, the daily average wind speed is 9.5 miles per hour, while on March 28, the calmest day of the year, the daily average wind speed is 7.8 miles per hour.

Average Wind Speed in May in Willowmore

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 Willowmore throughout May is predominantly from the west, with a peak proportion of 45% on May 31.

Wind Direction in May in Willowmore

Wind Direction in May in WillowmoreMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%AprJunwestsoutheastnorth
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).

Willowmore 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 Willowmore is essentially constant during May, remaining within 1°F of 64°F throughout.

Average Water Temperature in May in Willowmore

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 Willowmore typically lasts for 9.3 months (281 days), from around September 1 to around June 10, rarely starting before July 19 or after October 5, and rarely ending before May 16 or after July 10.

The month of May in Willowmore is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly decreasing from 96% to 69% over the course of the month.

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

Time Spent in Various Temperature Bands and the Growing Season in May in Willowmoregrowing seasonMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJun96%May 196%May 169%May 3169%May 3194%May 1194%May 1185%May 2185%May 2150%Jun 1050%Jun 10very coldcoldcoolcomfortablewarm
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 Willowmore are gradually increasing during May, increasing by 175°F, from 3,427°F to 3,602°F, over the course of the month.

Growing Degree Days in May in Willowmore

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 Willowmore is gradually decreasing during May, falling by 0.9 kWh, from 3.9 kWh to 3.1 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in May in Willowmore

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 Willowmore are -33.293 deg latitude, 23.490 deg longitude, and 2,717 ft elevation.

The topography within 2 miles of Willowmore contains significant variations in elevation, with a maximum elevation change of 748 feet and an average elevation above sea level of 2,804 feet. Within 10 miles contains significant variations in elevation (2,615 feet). Within 50 miles contains large variations in elevation (6,804 feet).

The area within 2 miles of Willowmore is covered by shrubs (86%), within 10 miles by shrubs (72%) and bare soil (27%), and within 50 miles by shrubs (87%).

This report illustrates the typical weather in Willowmore, 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 is only a single weather station, Plettenberg Bay Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Willowmore.

At a distance of 90 kilometers from Willowmore, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

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

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

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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