1. WeatherSpark.com
  2. Argentina
  3. Santiago del Estero

Climate and Average Weather Year Round in Selva Argentina

In Selva, the wet season is warm and humid, the dry season is comfortable, and it is mostly clear year round. Over the course of the year, the temperature typically varies from 45°F to 90°F and is rarely below 34°F or above 98°F.

Based on the tourism score, the best times of year to visit Selva for warm-weather activities are from early March to early May and from mid September to mid December.

Climate in Selva

hotwarmcomfortablecomfortablewarmhotJanFebMarAprMayJunJulAugSepOctNovDecNowNow75%75%60%60%clearovercastprecipitation: 5.3 inprecipitation: 5.3 in0.5 in0.5 inmuggy: 62%muggy: 62%1%1%drydrytourism score: 6.9tourism score: 6.94.24.2
Selva weather by month. Click on each chart for more information.

Average Temperature in Selva

The hot season lasts for 3.7 months, from November 22 to March 12, with an average daily high temperature above 85°F. The hottest day of the year is January 8, with an average high of 90°F and low of 68°F.

The cool season lasts for 2.7 months, from May 20 to August 11, with an average daily high temperature below 70°F. The coldest day of the year is July 20, with an average low of 45°F and high of 66°F.

Average High and Low Temperature in Selva

Average High and Low Temperature in SelvahothotcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJul 2066°FJul 2066°FJan 890°FJan 890°F45°F45°F68°F68°FNov 2285°FNov 2285°FMar 1285°FMar 1285°FMay 2070°FMay 2070°F63°F63°F65°F65°F52°F52°FNowNow
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 in Selva

Average Hourly Temperature in SelvaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcomfortablecomfortablewarmwarmhothot
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.

Al Bahah, Saudi Arabia (7,687 miles away) and Casino, Australia (7,780 miles) are the far-away foreign places with temperatures most similar to Selva (view comparison).

Compare Selva to another city:

Clouds

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

The clearer part of the year in Selva begins around July 11 and lasts for 9.9 months, ending around May 7. On March 25, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 75% of the time, and overcast or mostly cloudy 25% of the time.

The cloudier part of the year begins around May 7 and lasts for 2.1 months, ending around July 11. On June 10, the cloudiest day of the year, the sky is overcast or mostly cloudy 40% of the time, and clear, mostly clear, or partly cloudy 60% of the time.

Cloud Cover Categories in Selva

Cloud Cover Categories in SelvaclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Mar 2575%Mar 2575%Jun 1060%Jun 1060%Jul 1167%Jul 1167%May 768%May 768%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. The chance of wet days in Selva varies throughout the year.

The wetter season lasts 6.4 months, from October 8 to April 22, with a greater than 19% chance of a given day being a wet day. The chance of a wet day peaks at 34% on February 6.

The drier season lasts 5.6 months, from April 22 to October 8. The smallest chance of a wet day is 5% on August 9.

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 6.

Daily Chance of Precipitation in Selva

Daily Chance of Precipitation in SelvawetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 634%Feb 634%Aug 95%Aug 95%Jan 131%Jan 131%Oct 819%Oct 819%Apr 2219%Apr 2219%NowNowrain
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. Selva experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 12 months, from August 7 to July 25, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around December 16, with an average total accumulation of 5.3 inches.

The rainless period of the year lasts for 1.9 weeks, from July 25 to August 7. The least rain falls around July 30, with an average total accumulation of 0.5 inches.

Average Monthly Rainfall in Selva

Average Monthly Rainfall in SelvarainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inDec 165.3 inDec 165.3 inJul 300.5 inJul 300.5 inFeb 15.3 inFeb 15.3 inNowNow
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 Selva varies significantly over the course of the year. In 2021, the shortest day is June 21, with 10 hours, 14 minutes of daylight; the longest day is December 21, with 14 hours, 4 minutes of daylight.

Hours of Daylight and Twilight in Selva

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 5:59 AM on December 3, and the latest sunrise is 2 hours, 4 minutes later at 8:04 AM on July 1. The earliest sunset is at 6:15 PM on June 9, and the latest sunset is 1 hour, 58 minutes later at 8:13 PM on January 9.

Daylight saving time (DST) is not observed in Selva during 2021.

Sunrise & Sunset with Twilight in Selva

Sunrise & Sunset with Twilight in SelvaJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMDec 35:59 AMDec 35:59 AM8:13 PMJan 98:13 PMJan 9Jun 96:15 PMJun 96:15 PM8:04 AMJul 18:04 AMJul 1daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2021. 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.

Moon

The figure below presents a compact representation of key lunar data for 2021. 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.

Moon Rise, Set & Phases in Selva

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.

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.

Selva experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 6.6 months, from October 16 to May 3, during which time the comfort level is muggy, oppressive, or miserable at least 16% of the time. The muggiest day of the year is February 8, with muggy conditions 62% of the time.

The least muggy day of the year is August 1, with muggy conditions 1% of the time.

Humidity Comfort Levels in Selva

Humidity Comfort Levels in SelvamuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Aug 11%Aug 11%Feb 862%Feb 862%Oct 1616%Oct 1616%May 316%May 316%NowNowoppressiveoppressivemuggymuggydrydrycomfortablecomfortablehumidhumidmiserablemiserable
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 Selva experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.8 months, from August 4 to November 30, with average wind speeds of more than 9.4 miles per hour. The windiest day of the year is September 13, with an average hourly wind speed of 10.6 miles per hour.

The calmer time of year lasts for 8.2 months, from November 30 to August 4. The calmest day of the year is April 26, with an average hourly wind speed of 8.1 miles per hour.

Average Wind Speed in Selva

Average Wind Speed in SelvawindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphSep 1310.6 mphSep 1310.6 mphApr 268.1 mphApr 268.1 mphAug 49.4 mphAug 49.4 mphNov 309.4 mphNov 309.4 mphNowNow
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 Selva varies throughout the year.

The wind is most often from the north for 6.0 days, from May 27 to June 2, with a peak percentage of 33% on May 30. The wind is most often from the south for 2.3 months, from June 2 to August 11, with a peak percentage of 37% on July 25. The wind is most often from the east for 9.5 months, from August 11 to May 27, with a peak percentage of 52% on January 1.

Wind Direction in Selva

Wind Direction in SelvaESEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsoutheastnorth
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).

Best Time of Year to Visit

To characterize how pleasant the weather is in Selva 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 times of year to visit Selva for general outdoor tourist activities are from early March to early May and from mid September to mid December, with a peak score in the second week of April.

Tourism Score in Selva

Tourism Score in Selvabest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.96.94.24.26.96.95.55.5NowNowprecipitationprecipitationcloudscloudstemperaturetemperaturetourism 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 Selva for hot-weather activities is from mid November to late March, with a peak score in the last week of December.

Beach/Pool Score in Selva

Beach/Pool Score in Selvabest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.36.31.01.0NowNowprecipitationprecipitationcloudscloudstemperaturetemperature beach/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 Selva typically lasts for 11 months (331 days), from around July 28 to around June 24, rarely starting after September 6, or ending before May 31.

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

Time Spent in Various Temperature Bands and the Growing Season in Selvagrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Jul 2850%Jul 2850%Jun 2450%Jun 2490%Sep 690%Sep 690%May 3190%May 3133%Jul 1233%Jul 12Jan 25100%Jan 25100%NowNowvery coldcoldcoolcomfortablewarmhot
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.

Based on growing degree days alone, the first spring blooms in Selva should appear around July 15, only rarely appearing before July 10 or after July 24.

Growing Degree Days in Selva

Growing Degree Days in SelvaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°FJul 1590°FJul 1590°FOct 1900°FOct 1900°FNov 161,800°FNov 161,800°FJun 306,260°FJun 306,260°FNowNow
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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.7 months, from October 24 to February 15, with an average daily incident shortwave energy per square meter above 6.7 kWh. The brightest day of the year is December 11, with an average of 7.6 kWh.

The darker period of the year lasts for 3.1 months, from May 3 to August 6, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest day of the year is June 20, with an average of 3.2 kWh.

Average Daily Incident Shortwave Solar Energy in Selva

Average Daily Incident Shortwave Solar Energy in SelvabrightbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhDec 117.6 kWhDec 117.6 kWhJun 203.2 kWhJun 203.2 kWhOct 246.7 kWhOct 246.7 kWhFeb 156.7 kWhFeb 156.7 kWhMay 34.1 kWhMay 34.1 kWhAug 64.1 kWhAug 64.1 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 Selva are -29.768 deg latitude, -62.048 deg longitude, and 289 ft elevation.

The topography within 2 miles of Selva is essentially flat, with a maximum elevation change of 36 feet and an average elevation above sea level of 290 feet. Within 10 miles is also essentially flat (79 feet). Within 50 miles is essentially flat (240 feet).

The area within 2 miles of Selva is covered by cropland (80%) and trees (10%), within 10 miles by cropland (78%), and within 50 miles by shrubs (32%) and cropland (31%).

Data Sources

This report illustrates the typical weather in Selva, 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 Selva.

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

The stations contributing to this reconstruction are: Ceres Aerodrome (SANW, 97%, 16 kilometers, southeast) and Villa De Maria Del Rio Seco (SACV, 3.0%, 159 kilometers, west).

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 © 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.