Climate and Average Weather Year Round in São Félix do Xingu Brazil

In São Félix do Xingu, the wet season is oppressive and overcast, the dry season is muggy and partly cloudy, and it is hot year round. Over the course of the year, the temperature typically varies from 69°F to 96°F and is rarely below 65°F or above 102°F.

Based on the beach/pool score, the best time of year to visit São Félix do Xingu for hot-weather activities is from late May to mid August.

The hot season lasts for 2.2 months, from August 8 to October 14, with an average daily high temperature above 93°F. The hottest month of the year in São Félix do Xingu is September, with an average high of 96°F and low of 73°F.

The cool season lasts for 6.3 months, from December 17 to June 26, with an average daily high temperature below 85°F. The coldest month of the year in São Félix do Xingu is June, with an average low of 70°F and high of 84°F.

In São Félix do Xingu, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in São Félix do Xingu begins around May 31 and lasts for 4.1 months, ending around October 4.

The clearest month of the year in São Félix do Xingu is July, during which on average the sky is clear, mostly clear, or partly cloudy 64% of the time.

The cloudier part of the year begins around October 4 and lasts for 7.9 months, ending around May 31.

The cloudiest month of the year in São Félix do Xingu is January, during which on average the sky is overcast or mostly cloudy 88% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in São Félix do Xingu varies very significantly throughout the year.

The wetter season lasts 7.2 months, from October 5 to May 11, with a greater than 40% chance of a given day being a wet day. The month with the most wet days in São Félix do Xingu is March, with an average of 22.1 days with at least 0.04 inches of precipitation.

The drier season lasts 4.8 months, from May 11 to October 5. The month with the fewest wet days in São Félix do Xingu is July, with an average of 2.7 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in São Félix do Xingu is March, with an average of 22.1 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 73% on March 16.

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 Félix do Xingu experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in São Félix do Xingu. The month with the most rain in São Félix do Xingu is February, with an average rainfall of 10.2 inches.

The month with the least rain in São Félix do Xingu is July, with an average rainfall of 0.6 inches.

The length of the day in São Félix do Xingu does not vary substantially over the course of the year, staying within 30 minutes of 12 hours throughout. In 2024, the shortest day is June 20, with 11 hours, 44 minutes of daylight; the longest day is December 21, with 12 hours, 31 minutes of daylight.

The earliest sunrise is at 6:00 AM on November 12, and the latest sunrise is 41 minutes later at 6:40 AM on July 17. The earliest sunset is at 6:18 PM on May 23, and the latest sunset is 35 minutes later at 6:53 PM on January 31.

Daylight saving time (DST) is not observed in São Félix do Xingu during 2024.

The figure below presents a compact representation of key lunar data for 2024. 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.

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.

São Félix do Xingu experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 11 months, from September 6 to July 26, during which time the comfort level is muggy, oppressive, or miserable at least 56% of the time. The month with the most muggy days in São Félix do Xingu is March, with 31.0 days that are muggy or worse.

The month with the fewest muggy days in São Félix do Xingu is August, with 14.0 days that are muggy or worse.

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 Félix do Xingu does not vary significantly over the course of the year, remaining within 0.4 miles per hour of 1.9 miles per hour throughout.

The predominant average hourly wind direction in São Félix do Xingu varies throughout the year.

The wind is most often from the north for 3.0 weeks, from March 7 to March 28, with a peak percentage of 36% on March 16. The wind is most often from the east for 11 months, from March 28 to March 7, with a peak percentage of 43% on January 1.

To characterize how pleasant the weather is in São Félix do Xingu 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 Félix do Xingu for general outdoor tourist activities is from early June to late July, with a peak score in the first week of July.

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 Félix do Xingu for hot-weather activities is from late May to mid August, with a peak score in the second week of July.

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.

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 Félix do Xingu 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.

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.

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 2.3 months, from July 29 to October 7, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest month of the year in São Félix do Xingu is September, with an average of 6.3 kWh.

The darker period of the year lasts for 5.0 months, from December 21 to May 23, with an average daily incident shortwave energy per square meter below 4.9 kWh. The darkest month of the year in São Félix do Xingu is April, with an average of 4.6 kWh.

For the purposes of this report, the geographical coordinates of São Félix do Xingu are -6.645 deg latitude, -51.995 deg longitude, and 653 ft elevation.

The topography within 2 miles of São Félix do Xingu contains only modest variations in elevation, with a maximum elevation change of 404 feet and an average elevation above sea level of 648 feet. Within 10 miles contains only modest variations in elevation (1,368 feet). Within 50 miles also contains very significant variations in elevation (1,870 feet).

The area within 2 miles of São Félix do Xingu is covered by water (26%), cropland (20%), shrubs (20%), and trees (17%), within 10 miles by trees (54%) and cropland (19%), and within 50 miles by trees (80%) and cropland (11%).