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  5. August

Average Weather in August in Winton New Zealand

Daily high temperatures increase by 4°F, from 49°F to 53°F, rarely falling below 43°F or exceeding 59°F.

Daily low temperatures increase by 3°F, from 36°F to 39°F, rarely falling below 29°F or exceeding 45°F.

For reference, on January 26, the hottest day of the year, temperatures in Winton typically range from 50°F to 68°F, while on July 10, the coldest day of the year, they range from 35°F to 47°F.

Average High and Low Temperature in August

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 August. 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 August

Average Hourly Temperature in August in Winton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM4 AM8 AM12 PM4 PM8 PM12 AMJulSepNowNowvery coldvery coldcold
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.

La Junta, Chile (5,195 miles away) is the far-away foreign place with temperatures most similar to Winton (view comparison).

Clouds

The month of August in Winton experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 57% to 52%.

The clearest day of the month is August 31, with clear, mostly clear, or partly cloudy conditions 48% of the time.

For reference, on May 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 61%, while on February 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 52%.

Cloud Cover Categories in August

Cloud Cover Categories in August in Winton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepAug 143%Aug 143%Aug 3148%Aug 3148%Aug 1144%Aug 1144%Aug 2147%Aug 2147%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.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Winton, the chance of a wet day over the course of August is gradually decreasing, starting the month at 40% and ending it at 38%.

For reference, the year's highest daily chance of a wet day is 45% on May 20, and its lowest chance is 35% on February 8.

Over the course of August in Winton, the chance of a day with only rain remains an essentially constant 38% throughout, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.

Probability of Precipitation in August

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 August in Winton is essentially constant, remaining about 2.7 inches throughout, and rarely exceeding 4.7 inches or falling below 1.1 inches.

Average Monthly Rainfall in August

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 liquid-equivalent snowfall.

Sun

Over the course of August in Winton, 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, 24 minutes, implying an average daily increase of 2 minutes, 48 seconds, and weekly increase of 19 minutes, 38 seconds.

The shortest day of the month is August 1, with 9 hours, 31 minutes of daylight and the longest day is August 31, with 10 hours, 55 minutes of daylight.

Hours of Daylight and Twilight in August

Hours of Daylight and Twilight in August in Winton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrJulSepdaydaydaydaynightAug 19 hr, 31 minAug 19 hr, 31 minAug 3110 hr, 55 minAug 3110 hr, 55 minNowNow
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 Winton is 8:07 AM on August 1 and the earliest sunrise is 48 minutes earlier at 7:19 AM on August 31.

The earliest sunset is 5:38 PM on August 1 and the latest sunset is 36 minutes later at 6:15 PM on August 31.

Daylight saving time is observed in Winton during 2019, but it neither starts nor ends during August, so the entire month is in standard time.

For reference, on December 22, the longest day of the year, the Sun rises at 5:51 AM and sets 15 hours, 47 minutes later, at 9:38 PM, while on June 21, the shortest day of the year, it rises at 8:29 AM and sets 8 hours, 37 minutes later, at 5:06 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in August

Sunrise & Sunset with Twilight and Daylight Saving Time in August in Winton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJulSep7:19 AM7:19 AMAug 316:15 PMAug 316:15 PM8:07 AM8:07 AMAug 15:38 PMAug 15:38 PM7:45 AM7:45 AMAug 165:56 PMAug 165:56 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of August. 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.

Humidity

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 Winton is essentially constant during August, remaining around 0% throughout.

For reference, on February 11, the muggiest day of the year, there are muggy conditions 0% of the time, while on April 6, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in August

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.

Wind

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 Winton is gradually increasing during August, increasing from 10.3 miles per hour to 10.8 miles per hour over the course of the month.

For reference, on November 15, the windiest day of the year, the daily average wind speed is 12.4 miles per hour, while on July 6, the calmest day of the year, the daily average wind speed is 9.8 miles per hour.

Average Wind Speed in August

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 Winton throughout August is predominantly from the west, with a peak proportion of 44% on August 31.

Wind Direction in August

Wind Direction in August in Winton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JulSepNowNowwestnortheastsouth
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).

Water Temperature

Winton 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 Winton is essentially constant during August, remaining around 50°F throughout.

The lowest average surface water temperature during August is 50°F on August 12.

Average Water Temperature in August

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Growing Season

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 Winton typically lasts for 8.2 months (250 days), from around September 12 to around May 19, rarely starting before August 3 or after November 19, and rarely ending before March 21 or after June 26.

The month of August in Winton is very likely fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 9% to 39% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in August

Time Spent in Various Temperature Bands and the Growing Season in August in Winton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepAug 19%Aug 19%Aug 3139%Aug 3139%Aug 1116%Aug 1116%Aug 2127%Aug 2127%50%Sep 1250%Sep 124%Jul 164%Jul 16freezingvery coldcoldcool
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 Winton are essentially constant during August, remaining within 7°F of 11°F throughout.

Growing Degree Days in August

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

Solar Energy

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 Winton is increasing during August, rising by 1.1 kWh, from 1.6 kWh to 2.7 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in August

Average Daily Incident Shortwave Solar Energy in August in Winton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 kWh0.5 kWh1.0 kWh1.5 kWh2.0 kWh2.5 kWh3.0 kWh3.5 kWh4.0 kWh4.5 kWh5.0 kWh5.5 kWhJulSepAug 11.6 kWhAug 11.6 kWhAug 312.7 kWhAug 312.7 kWhAug 162.1 kWhAug 162.1 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.

Topography

For the purposes of this report, the geographical coordinates of Winton are -46.150 deg latitude, 168.333 deg longitude, and 174 ft elevation.

The topography within 2 miles of Winton is essentially flat, with a maximum elevation change of 82 feet and an average elevation above sea level of 170 feet. Within 10 miles is essentially flat (1,073 feet). Within 50 miles contains very significant variations in elevation (5,853 feet).

The area within 2 miles of Winton is covered by cropland (88%), within 10 miles by cropland (91%), and within 50 miles by cropland (35%) and water (29%).

Data Sources

This report illustrates the typical weather in Winton year round, 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, Invercargill Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Winton.

At a distance of 29 kilometers from Winton, 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 Winton 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 Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.