1. WeatherSpark.com
  2. Brazil
  3. São Paulo
  4. Barra Bonita

Average Weather in Barra Bonita Brazil

In Barra Bonita, the summers are long, hot, muggy, wet, and mostly cloudy and the winters are short, comfortable, and mostly clear. Over the course of the year, the temperature typically varies from 57°F to 88°F and is rarely below 51°F or above 95°F.

Based on the tourism score, the best time of year to visit Barra Bonita for warm-weather activities is from late April to late September.

Climate Summary

hotwarmhotJanFebMarAprMayJunJulAugSepOctNovDec72%72%26%26%clearovercastprecipitation: 8.6 inprecipitation: 8.6 in1.1 in1.1 inmuggy: 91%muggy: 91%2%2%drydrytourism score: 7.2tourism score: 7.23.63.6
Click on each chart for more information.

Temperature

The hot season lasts for 5.7 months, from October 14 to April 5, with an average daily high temperature above 86°F. The hottest day of the year is February 13, with an average high of 88°F and low of 71°F.

The cool season lasts for 2.5 months, from May 15 to July 31, with an average daily high temperature below 79°F. The coldest day of the year is July 21, with an average low of 57°F and high of 77°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 Barra BonitaJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcoolcomfortablecomfortablewarmhothotcool
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.

Xiloxochico de Rafael Ávila Camacho, Mexico (4,424 miles away); Komatipoort, South Africa (5,010 miles); and Ambovombe, Madagascar (5,848 miles) are the far-away foreign places with temperatures most similar to Barra Bonita (view comparison).

Clouds

In Barra Bonita, 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 Barra Bonita begins around April 1 and lasts for 6.3 months, ending around October 12. On August 27, 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 October 12 and lasts for 5.7 months, ending around April 1. On January 15, the cloudiest day of the year, the sky is overcast or mostly cloudy 74% of the time, and clear, mostly clear, or partly cloudy 26% of the time.

Cloud Cover Categories

Cloud Cover Categories in Barra BonitaclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 2772%Aug 2772%Jan 1526%Jan 1526%Apr 149%Apr 149%Oct 1250%Oct 1250%clearmostly clearpartly cloudyovercastmostly cloudy
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 Barra Bonita varies very significantly throughout the year.

The wetter season lasts 5.2 months, from October 20 to March 26, with a greater than 37% chance of a given day being a wet day. The chance of a wet day peaks at 65% on January 21.

The drier season lasts 6.8 months, from March 26 to October 20. The smallest chance of a wet day is 8% on August 2.

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 65% on January 21.

Daily Chance of Precipitation

Daily Chance of Precipitation in Barra BonitawetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 2165%Jan 2165%Aug 28%Aug 28%Jan 162%Jan 162%Oct 2037%Oct 2037%Mar 2637%Mar 2637%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. Barra Bonita experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Barra Bonita. The most rain falls during the 31 days centered around January 10, with an average total accumulation of 8.6 inches.

The least rain falls around July 28, with an average total accumulation of 1.1 inches.

Average Monthly Rainfall

Average Monthly Rainfall in Barra BonitaJanFebMarAprMayJunJulAugSepOctNovDec0 in2 in4 in6 in8 in10 in12 in14 inJan 108.6 inJan 108.6 inJul 281.1 inJul 281.1 inMay 272.6 inMay 272.6 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 liquid-equivalent snowfall.

Sun

The length of the day in Barra Bonita varies over the course of the year. In 2018, the shortest day is June 21, with 10 hours, 45 minutes of daylight; the longest day is December 21, with 13 hours, 31 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in Barra BonitaJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minSep 2212 hr, 6 minSep 2213 hr, 31 minDec 2113 hr, 31 minDec 2112 hr, 7 minMar 2012 hr, 7 minMar 2010 hr, 45 minJun 2110 hr, 45 minJun 21daydaynight
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 5:37 AM on October 20, and the latest sunrise is 1 hour, 26 minutes later at 7:04 AM on February 17. The earliest sunset is at 5:36 PM on June 6, and the latest sunset is 2 hours, 27 minutes later at 8:04 PM on January 14.

Daylight saving time (DST) is observed in Barra Bonita during 2018, starting in the spring on October 21 and ending in the fall on February 17.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in Barra BonitaJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMOct 205:37 AMOct 205:37 AM8:04 PMJan 148:04 PMJan 14Jun 65:36 PMJun 65:36 PM7:04 AMFeb 177:04 AMFeb 17DSTFeb 17DSTFeb 17Oct 21DSTOct 21DSTdaynightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2018. 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 transitions to and from daylight saving time are indicated by the 'DST' labels.

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.

Barra Bonita experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 7.2 months, from October 1 to May 9, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The muggiest day of the year is February 15, with muggy conditions 91% of the time.

The least muggy day of the year is July 23, with muggy conditions 2% of the time.

Humidity Comfort Levels

Humidity Comfort Levels in Barra BonitamuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jul 232%Jul 232%91%Feb 1591%Feb 15Oct 124%Oct 124%May 924%May 924%oppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydry
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 Barra Bonita experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.0 months, from July 29 to November 29, with average wind speeds of more than 4.9 miles per hour. The windiest day of the year is September 18, with an average hourly wind speed of 5.9 miles per hour.

The calmer time of year lasts for 8.0 months, from November 29 to July 29. The calmest day of the year is February 13, with an average hourly wind speed of 3.9 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 Barra Bonita varies throughout the year.

The wind is most often from the north for 1.0 months, from January 3 to February 3, with a peak percentage of 35% on January 21. The wind is most often from the east for 11 months, from February 3 to January 3, with a peak percentage of 33% on January 1.

Wind Direction

Wind Direction in Barra BonitaNEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%eastnorthwestsouth
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 Barra Bonita 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 Barra Bonita for general outdoor tourist activities is from late April to late September, with a peak score in the second week of August.

Tourism Score

Tourism Score in Barra Bonitabest timeJanFebMarAprMayJunJulAugSepOctNovDec02468107.27.23.63.67.27.2 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 Barra Bonita for hot-weather activities is from mid March to early May, with a peak score in the second week of April.

Beach/Pool Score

Beach/Pool Score in Barra Bonitabest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.36.34.14.15.65.65.55.54.64.6 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).

Temperatures in Barra Bonita are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Barra BonitaJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 3100%Jul 3coolcomfortablewarmhotcold
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.

Growing Degree Days

Growing Degree Days in Barra BonitaJanFebMarAprMayJunJulAugSepOctNovDec0°F1,000°F2,000°F3,000°F4,000°F5,000°F6,000°F7,000°F8,000°FJul 690°FJul 690°FAug 22900°FAug 22900°FOct 31,800°FOct 31,800°FJun 308,330°FJun 308,330°F
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 some seasonal variation over the course of the year.

The brighter period of the year lasts for 3.2 months, from October 3 to January 10, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest day of the year is November 20, with an average of 6.6 kWh.

The darker period of the year lasts for 2.5 months, from May 13 to July 27, with an average daily incident shortwave energy per square meter below 4.5 kWh. The darkest day of the year is June 16, with an average of 4.0 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in Barra BonitabrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhNov 206.6 kWhNov 206.6 kWhJun 164.0 kWhJun 164.0 kWhOct 36.1 kWhOct 36.1 kWhJan 106.1 kWhJan 106.1 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 Barra Bonita are -22.495 deg latitude, -48.558 deg longitude, and 1,660 ft elevation.

The topography within 2 miles of Barra Bonita contains significant variations in elevation, with a maximum elevation change of 492 feet and an average elevation above sea level of 1,602 feet. Within 10 miles contains significant variations in elevation (1,132 feet). Within 50 miles contains very significant variations in elevation (2,231 feet).

The area within 2 miles of Barra Bonita is covered by shrubs (46%), cropland (29%), and trees (12%), within 10 miles by cropland (46%) and trees (18%), and within 50 miles by cropland (44%) and trees (28%).

Data Sources

This report illustrates the typical weather in Barra Bonita, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Barra Bonita.

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

The stations contributing to this reconstruction are: Bauru Airport (61%, 54 kilometers, west); Pirassununga (15%, 138 kilometers, northeast); Viracopos International Airport (13%, 157 kilometers, east); and Leite Lopes Airport (11%, 172 kilometers, northeast).

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.