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Climate and Average Weather Year Round in São João de Pirabas Brazil

In São João de Pirabas, the wet season is overcast, the dry season is windy and partly cloudy, and it is hot and oppressive year round. Over the course of the year, the temperature typically varies from 75°F to 88°F and is rarely below 74°F or above 90°F.

Based on the beach/pool score, the best time of year to visit São João de Pirabas for hot-weather activities is from early August to late October.

Climate in São João de Pirabas

hotJanFebMarAprMayJunJulAugSepOctNovDecNowNow64%64%15%15%overcastclearprecipitation: 17.4 inprecipitation: 17.4 in0.6 in0.6 inmuggy: 100%muggy: 100%beach/pool score: 7.0beach/pool score: 7.02.72.7
São João de Pirabas weather by month. Click on each chart for more information.

Average Temperature in São João de Pirabas

The temperature in São João de Pirabas varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature in São João de Pirabas

Average High and Low Temperature in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FSep 2885°FSep 2885°FJun 988°FJun 988°F75°F75°F77°F77°FAug 587°FAug 587°FJan 2886°FJan 2886°FApr 1086°FApr 1086°F76°F76°F77°F77°F77°F77°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 São João de Pirabas

Average Hourly Temperature in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowwarmhothothot
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.

Mendaha, Indonesia (10,425 miles away); City of Balikpapan, Indonesia (11,340 miles); and Ternate, Indonesia (12,074 miles) are the far-away foreign places with temperatures most similar to São João de Pirabas (view comparison).

Compare São João de Pirabas to another city:

Clouds

In São João de Pirabas, 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 São João de Pirabas begins around June 9 and lasts for 4.7 months, ending around November 1. On August 12, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.

The cloudier part of the year begins around November 1 and lasts for 7.3 months, ending around June 9. On April 13, the cloudiest day of the year, the sky is overcast or mostly cloudy 85% of the time, and clear, mostly clear, or partly cloudy 15% of the time.

Cloud Cover Categories in São João de Pirabas

Cloud Cover Categories in São João de PirabasclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 1264%Aug 1264%Apr 1315%Apr 1315%Jun 938%Jun 938%Nov 140%Nov 140%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 São João de Pirabas varies very significantly throughout the year.

The wetter season lasts 6.7 months, from January 2 to July 25, with a greater than 53% chance of a given day being a wet day. The chance of a wet day peaks at 95% on April 8.

The drier season lasts 5.3 months, from July 25 to January 2. The smallest chance of a wet day is 11% on October 24.

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 95% on April 8.

Daily Chance of Precipitation in São João de Pirabas

Daily Chance of Precipitation in São João de PirabaswetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Apr 895%Apr 895%Oct 2411%Oct 2411%Jan 150%Jan 150%Jan 253%Jan 253%Jul 2553%Jul 2553%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. São João de Pirabas experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in São João de Pirabas. The most rain falls during the 31 days centered around March 29, with an average total accumulation of 17.4 inches.

The least rain falls around October 7, with an average total accumulation of 0.6 inches.

Average Monthly Rainfall in São João de Pirabas

Average Monthly Rainfall in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 in20 in20 in25 in25 inMar 2917.4 inMar 2917.4 inOct 70.6 inOct 70.6 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 São João de Pirabas does not vary substantially over the course of the year, staying within 10 minutes of 12 hours throughout. In 2021, the shortest day is June 21, with 12 hours, 5 minutes of daylight; the longest day is December 21, with 12 hours, 10 minutes of daylight.

Hours of Daylight and Twilight in São João de Pirabas

Hours of Daylight and Twilight in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minSep 2212 hr, 6 minSep 2212 hr, 10 minDec 2112 hr, 10 minDec 2112 hr, 7 minMar 2012 hr, 7 minMar 2012 hr, 5 minJun 2112 hr, 5 minJun 21daydaynightNowNow
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 5:47 AM on November 4, and the latest sunrise is 31 minutes later at 6:18 AM on February 12. The earliest sunset is at 5:56 PM on October 31, and the latest sunset is 31 minutes later at 6:27 PM on February 8.

Daylight saving time (DST) is not observed in São João de Pirabas during 2021.

Sunrise & Sunset with Twilight in São João de Pirabas

Sunrise & Sunset with Twilight in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNov 45:47 AMNov 45:47 AM6:27 PMFeb 86:27 PMFeb 8Oct 315:56 PMOct 315:56 PM6:18 AMFeb 126:18 AMFeb 12daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 São João de Pirabas

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.

The perceived humidity level in São João de Pirabas, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 100% throughout.

Humidity Comfort Levels in São João de Pirabas

Humidity Comfort Levels in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 3100%Jul 3100%NowNowmiserablemiserableoppressiveoppressive
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 São João de Pirabas experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.9 months, from July 25 to January 21, with average wind speeds of more than 9.3 miles per hour. The windiest day of the year is October 24, with an average hourly wind speed of 11.0 miles per hour.

The calmer time of year lasts for 6.1 months, from January 21 to July 25. The calmest day of the year is April 26, with an average hourly wind speed of 7.5 miles per hour.

Average Wind Speed in São João de Pirabas

Average Wind Speed in São João de PirabaswindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphOct 2411.0 mphOct 2411.0 mphApr 267.5 mphApr 267.5 mphJul 259.3 mphJul 259.3 mphJan 219.3 mphJan 219.3 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 São João de Pirabas is from the east throughout the year.

Wind Direction in São João de Pirabas

Wind Direction in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNoweastnorth
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

São João de Pirabas 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 water temperature does not vary significantly over the course of the year, remaining within 1°F of 83°F throughout.

Average Water Temperature in São João de Pirabas

Average Water Temperature in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°FMay 2784°FMay 2784°F82°FSep 2582°FSep 25Jun 2883°FJun 2883°FAug 2582°FAug 2582°FNov 382°FNov 382°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is in São João de Pirabas 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 São João de Pirabas for general outdoor tourist activities is from mid August to mid October, with a peak score in the third week of September.

Tourism Score in São João de Pirabas

Tourism Score in São João de Pirabasbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810104.64.61.81.8NowNowprecipitationprecipitationcloudscloudstemperaturetemperature tourism 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 São João de Pirabas for hot-weather activities is from early August to late October, with a peak score in the third week of September.

Beach/Pool Score in São João de Pirabas

Beach/Pool Score in São João de Pirabasbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.07.02.72.7NowNowprecipitationprecipitationtemperaturetemperature 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).

Temperatures in São João de Pirabas 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 in São João de Pirabas

Time Spent in Various Temperature Bands and the Growing Season in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec0%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 3NowNowwarmhotcomfortable
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 in São João de Pirabas

Growing Degree Days in São João de PirabasJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FJul 490°FJul 490°FAug 291,800°FAug 291,800°FJun 3010,973°FJun 3010,973°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 some seasonal variation over the course of the year.

The brighter period of the year lasts for 3.3 months, from August 10 to November 18, with an average daily incident shortwave energy per square meter above 6.4 kWh. The brightest day of the year is October 2, with an average of 7.0 kWh.

The darker period of the year lasts for 4.4 months, from January 19 to May 31, with an average daily incident shortwave energy per square meter below 4.7 kWh. The darkest day of the year is April 24, with an average of 4.1 kWh.

Average Daily Incident Shortwave Solar Energy in São João de Pirabas

Average Daily Incident Shortwave Solar Energy in São João de PirabasbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhOct 27.0 kWhOct 27.0 kWhApr 244.1 kWhApr 244.1 kWhAug 106.4 kWhAug 106.4 kWhNov 186.4 kWhNov 186.4 kWhJan 194.7 kWhJan 194.7 kWhMay 314.7 kWhMay 314.7 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 São João de Pirabas are -0.775 deg latitude, -47.177 deg longitude, and 85 ft elevation.

The topography within 2 miles of São João de Pirabas contains only modest variations in elevation, with a maximum elevation change of 108 feet and an average elevation above sea level of 35 feet. Within 10 miles also contains only modest variations in elevation (217 feet). Within 50 miles also contains only modest variations in elevation (387 feet).

The area within 2 miles of São João de Pirabas is covered by water (40%) and trees (38%), within 10 miles by trees (47%) and water (33%), and within 50 miles by water (56%) and trees (26%).

Data Sources

This report illustrates the typical weather in São João de Pirabas, 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, Belém/Val de Cans–Júlio Cezar Ribeiro International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of São João de Pirabas.

At a distance of 159 kilometers from São João de Pirabas, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .

The weight assigned to the MERRA-2 value depends on the distance from São João de Pirabas to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 16%, making the weight assigned to the weather station 84%.

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.