Summer Weather in Rurrenabaque Bolivia

Daily high temperatures decrease by 4°F, from 88°F to 84°F, rarely falling below 80°F or exceeding 95°F.

Daily low temperatures are around 73°F, rarely falling below 70°F or exceeding 76°F. The highest daily average low temperature is 74°F on December 7.

For reference, on September 29, the hottest day of the year, temperatures in Rurrenabaque typically range from 72°F to 92°F, while on July 18, the coldest day of the year, they range from 66°F to 83°F.

The figure below shows you a compact characterization of the hourly average summer temperatures. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Bantay, Philippines (11,862 miles away) is the far-away foreign place with temperatures most similar to Rurrenabaque (view comparison).

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The summer in Rurrenabaque experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 81% throughout the season. The highest chance of overcast or mostly cloudy conditions is 85% on January 17.

The clearest day of the summer is December 1, with clear, mostly clear, or partly cloudy conditions 22% of the time.

For reference, on January 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 85%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 68%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Rurrenabaque, the chance of a wet day over the course of the summer is very rapidly increasing, starting the season at 47% and ending it at 61%.

For reference, the year's highest daily chance of a wet day is 62% on February 16, and its lowest chance is 17% on August 3.

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the summer in Rurrenabaque is very rapidly increasing, starting the season at 6.9 inches, when it rarely exceeds 11.6 inches or falls below 3.5 inches, and ending the season at 9.0 inches, when it rarely exceeds 13.5 inches or falls below 5.1 inches.

The highest average 31-day accumulation is 9.9 inches on February 6.

Over the course of the summer in Rurrenabaque, the length of the day is decreasing. From the start to the end of the season, the length of the day decreases by 33 minutes, implying an average daily decrease of 22 seconds, and weekly decrease of 2 minutes, 34 seconds.

The shortest day of the summer is February 28, with 12 hours, 23 minutes of daylight and the longest day is December 22, with 12 hours, 59 minutes of daylight.

The earliest sunrise of the summer in Rurrenabaque is 5:51 AM on December 1 and the latest sunrise is 39 minutes later at 6:31 AM on February 28.

The earliest sunset is 6:47 PM on December 1 and the latest sunset is 19 minutes later at 7:06 PM on January 20.

Daylight saving time is not observed in Rurrenabaque during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:58 AM and sets 12 hours, 59 minutes later, at 6:58 PM, while on June 20, the shortest day of the year, it rises at 6:53 AM and sets 11 hours, 16 minutes later, at 6:10 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for the summer of 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

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 chance that a given day will be muggy in Rurrenabaque is gradually increasing during the summer, rising from 96% to 99% over the course of the season.

The highest chance of a muggy day during the summer is 100% on January 21.

For reference, on January 17, the muggiest day of the year, there are muggy conditions 100% of the time, while on July 31, the least muggy day of the year, there are muggy conditions 43% of the time.

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 Rurrenabaque is essentially constant during the summer, remaining within 0.1 miles per hour of 2.3 miles per hour throughout.

For reference, on September 7, the windiest day of the year, the daily average wind speed is 2.7 miles per hour, while on March 18, the calmest day of the year, the daily average wind speed is 2.1 miles per hour.

The hourly average wind direction in Rurrenabaque throughout the summer is predominantly from the north, with a peak proportion of 78% on December 19.

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 Rurrenabaque 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.

The average accumulated growing degree days in Rurrenabaque are very rapidly increasing during the summer, increasing by 2,513°F, from 4,208°F to 6,721°F, over the course of the season.

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 in Rurrenabaque is essentially constant during the summer, remaining within 0.1 kWh of 5.6 kWh throughout.

For the purposes of this report, the geographical coordinates of Rurrenabaque are -14.441 deg latitude, -67.528 deg longitude, and 686 ft elevation.

The topography within 2 miles of Rurrenabaque contains very significant variations in elevation, with a maximum elevation change of 1,572 feet and an average elevation above sea level of 911 feet. Within 10 miles contains very significant variations in elevation (3,081 feet). Within 50 miles contains large variations in elevation (7,776 feet).

The area within 2 miles of Rurrenabaque is covered by trees (59%), cropland (16%), and water (15%), within 10 miles by trees (83%) and cropland (11%), and within 50 miles by trees (89%).