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Average Weather in Arrecifes Argentina

In Arrecifes, the summers are warm, humid, wet, and mostly clear and the winters are short, cold, and partly cloudy. Over the course of the year, the temperature typically varies from 41°F to 87°F and is rarely below 30°F or above 95°F.

Climate Summary

hotwarmcomfortablecoolcomfortablewarmhotJanFebMarAprMayJunJulAugSepOctNovDec72%72%48%48%clearovercastprecipitation: 5.2 inprecipitation: 5.2 in1.2 in1.2 inmuggy: 40%muggy: 40%0%0%drydrytourism score: 6.9tourism score: 6.92.52.5
Click on each chart for more information.

Based on the tourism score, the best time of year to visit Arrecifes for warm-weather activities is from mid October to mid April.

Temperature

The hot season lasts for 3.5 months, from November 26 to March 9, with an average daily high temperature above 82°F. The hottest day of the year is January 13, with an average high of 87°F and low of 65°F.

The cool season lasts for 2.9 months, from May 22 to August 20, with an average daily high temperature below 65°F. The coldest day of the year is July 19, with an average low of 41°F and high of 60°F.

Average High and Low Temperature

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 entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature in ArrecifesJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMvery coldcoldcoldcoolcomfortablecomfortablewarmwarmhotcomfortable
The average hourly temperature, color coded into bands: 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 shaded overlays indicate night and civil twilight.

Crystal Brook, Australia (7,638 miles away) and Dungog, Australia (7,407 miles) are the far-away foreign places with temperatures most similar to Arrecifes (view comparison).

Clouds

In Arrecifes, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Arrecifes begins around September 14 and lasts for 7.4 months, ending around April 26. On February 2, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 72% of the time, and overcast or mostly cloudy 28% of the time.

The cloudier part of the year begins around April 26 and lasts for 4.6 months, ending around September 14. On June 26, the cloudiest day of the year, the sky is overcast or mostly cloudy 52% of the time, and clear, mostly clear, or partly cloudy 48% of the time.

Cloud Cover Categories

Cloud Cover Categories in ArrecifesclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Feb 272%Feb 272%Jun 2648%Jun 2648%Sep 1460%Sep 1460%Apr 2660%Apr 2660%clearmostly clearovercastpartly cloudymostly cloudy
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Arrecifes varies throughout the year.

The wetter season lasts 6.8 months, from September 28 to April 22, with a greater than 23% chance of a given day being a wet day. The chance of a wet day peaks at 34% on February 8.

The drier season lasts 5.2 months, from April 22 to September 28. The smallest chance of a wet day is 12% on July 6.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 34% on February 8.

Daily Chance of Precipitation

Daily Chance of Precipitation in ArrecifeswetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Feb 834%Feb 834%Jul 612%Jul 612%Jan 130%Jan 130%Sep 2823%Sep 2823%Apr 2223%Apr 2223%rain
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 months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Arrecifes experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Arrecifes. The most rain falls during the 31 days centered around February 22, with an average total accumulation of 5.2 inches.

The least rain falls around June 29, with an average total accumulation of 1.2 inches.

Average Monthly Rainfall

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

The length of the day in Arrecifes varies significantly over the course of the year. In 2017, the shortest day is June 21, with 9 hours, 53 minutes of daylight; the longest day is December 21, with 14 hours, 26 minutes of daylight.

Hours of Daylight and Twilight

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 is at 5:41 AM on December 5, and the latest sunrise is 2 hours, 25 minutes later at 8:06 AM on June 30. The earliest sunset is at 5:57 PM on June 11, and the latest sunset is 2 hours, 18 minutes later at 8:15 PM on January 6.

Daylight saving time (DST) is not observed in Arrecifes during 2017.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in ArrecifesJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMDec 55:41 AMDec 55:41 AM8:15 PMJan 68:15 PMJan 6Jun 115:57 PMJun 115:57 PM8:06 AMJun 308:06 AMJun 30daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. 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.

Arrecifes experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.8 months, from November 20 to April 13, during which time the comfort level is muggy, oppressive, or miserable at least 10% of the time. The muggiest day of the year is February 10, with muggy conditions 40% of the time.

The least muggy day of the year is July 18, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in ArrecifesmuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jul 180%Jul 180%Feb 1040%Feb 1040%Nov 2010%Nov 2010%Apr 1310%Apr 1310%oppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydry
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

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 Arrecifes experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.0 months, from July 11 to December 12, with average wind speeds of more than 8.7 miles per hour. The windiest day of the year is September 13, with an average hourly wind speed of 9.6 miles per hour.

The calmer time of year lasts for 7.0 months, from December 12 to July 11. The calmest day of the year is March 1, with an average hourly wind speed of 7.8 miles per hour.

Average Wind Speed

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

The predominant average hourly wind direction in Arrecifes varies throughout the year.

The wind is most often from the north for 5.0 months, from March 29 to August 28, with a peak percentage of 37% on May 15. The wind is most often from the south for 2.0 weeks, from August 28 to September 11, with a peak percentage of 32% on September 10. The wind is most often from the east for 6.6 months, from September 11 to March 29, with a peak percentage of 39% on January 1.

Wind Direction

Wind Direction in ArrecifesENSEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%southeastnorthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Best Time of Year to Visit

To characterize how pleasant the weather is in Arrecifes throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Arrecifes for general outdoor tourist activities is from mid October to mid April, with a peak score in the second week of March.

Tourism Score

Tourism Score in Arrecifesbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.96.92.52.56.86.86.36.3 precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Arrecifes for hot-weather activities is from early December to early March, with a peak score in the second week of January.

Beach/Pool Score

Beach/Pool Score in Arrecifesbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.46.40.20.2 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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 Arrecifes typically lasts for 9.6 months (292 days), from around August 21 to around June 9, rarely starting before July 24 or after September 17, and rarely ending before May 18 or after June 30.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Arrecifesgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Aug 2150%Aug 2150%Jun 950%Jun 990%Sep 1790%Sep 1790%May 1890%May 1810%Jul 2410%Jul 2410%Jun 3010%Jun 30Jan 15100%Jan 15100%very coldcoldcoolcomfortablewarmhot
The percentage of time spent in various temperature bands: 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 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.

Based on growing degree days alone, the first spring blooms in Arrecifes should appear around July 26, only rarely appearing before July 17 or after August 8.

Growing Degree Days

The average growing degree days accumulated over the course of the year, 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 experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.6 months, from October 30 to February 16, with an average daily incident shortwave energy per square meter above 6.7 kWh. The brightest day of the year is January 1, with an average of 7.8 kWh.

The darker period of the year lasts for 3.4 months, from May 1 to August 13, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is June 24, with an average of 2.5 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in ArrecifesbrightbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWh10 kWhJan 17.8 kWhJan 17.8 kWhJun 242.5 kWhJun 242.5 kWhOct 306.7 kWhOct 306.7 kWhFeb 166.7 kWhFeb 166.7 kWhMay 13.6 kWhMay 13.6 kWhAug 133.6 kWhAug 133.6 kWh
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 Arrecifes are -34.064 deg latitude, -60.104 deg longitude, and 128 ft elevation.

The topography within 2 miles of Arrecifes contains only modest variations in elevation, with a maximum elevation change of 108 feet and an average elevation above sea level of 126 feet. Within 10 miles also contains only modest variations in elevation (213 feet). Within 50 miles contains only modest variations in elevation (502 feet).

The area within 2 miles of Arrecifes is covered by cropland (52%), grassland (18%), trees (16%), and shrubs (14%), within 10 miles by cropland (73%) and trees (11%), and within 50 miles by cropland (65%) and trees (12%).

Data Sources

This report illustrates the typical weather in Arrecifes, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Arrecifes.

For each station, the records are corrected for the elevation difference between that station and Arrecifes 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 Arrecifes is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Arrecifes and a given station.

The stations contributing to this reconstruction are: Junín Airport (66%, 93 kilometers, southwest) and San Fernando Airport (34%, 146 kilometers, east).

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.