Climate and monthly weather forecastSan Borja, Bolivia
Climate and monthly weather forecast
The climate of San Borja
Located deep within the heartland of South America, the Bolivian city of San Borja experiences a climate defined by the Köppen classification as a Tropical Monsoon climate. Sandwiched between the Tropical Andes and the Amazon Rainforest, this area undergoes major shifts in its climatological parameters throughout the year.Making a pivot towards the weather, temperatures here remain consistently warm year-round, with average monthly high temperatures peaking at 32.5°C (90.5°F) in September and dipping to a relatively mild 27.1°C (80.8°F) in June. Minimum temperatures follow a similar pattern, ranging from 21°C (69.8°F) in December to 16.6°C (61.9°F) in July, affirming the tropical climate. Sunshine hours reflect this consistency, clocking in between 5.9 and 9 hours from January to December.
Precipitation exhibits the most variance. Rainfall can fluctuate quite dramatically between 414mm (16.3") in January and February, plummeting to a meager 57mm (2.24") in August. The number of rainfall days reflects this pattern, with January seeing close to 28.1 wet days and August witnessing just 11. It's no surprise to find the relative humidity dropping from 90% in February to 67% in August.
The wind speed in San Borja vacillates moderately, with gust speeds ranging from 8.4km/h (5.2mph) in December to 6.3km/h (3.9mph) in May, hinting at a calming breeze is more norm than exception.
The best time to visit San Borja
While San Borja does boast an all-year-round warmth, the best time to visit would be the drier months from June to September. The skies are clear, with cloud cover dropping to 31% and 32% in August and September respectively, and rain is a relative rarity. Plus, the city basks in extended sunshine hours, peaking at 9 hours in August and September, and a manageable temperature range of 27.5°C (81.5°F) to 32.5°C (90.5°F) from June to September ensures comfortable sightseeing and activity planning.The worst time to visit San Borja
The least recommended period for a visit to San Borja would be the damp and humid season, primarily between December and February. Rainfall in these months can reach an overwhelming 410mm (16.14") and 414mm (16.3") correspondingly. A combination of high relative humidity of up to 90% and limited average sunshine of around 5.9 hours in January and 4.8 hours in February, may dampen the spirits of all but the most ardent rain lovers.Spring weather in San Borja
Spring in San Borja stretches from September to November, manifesting as a period of transition from the drier seasons to wetter months. Temperatures hover between 27.5°C (81.5°F) to 31.6°C (88.9°F) and lows vary from 16.6°C (61.9°F) to 20.6°C (69.1°F). Rainfall starts to increase, from 57mm (2.24") in August steadily escalating to 240mm (9.45") by November. Bright sunshine prevails for around 8.6 to 8.9 hours a day, with cloud cover starting to thicken from 32% to 44%.Summer weather in San Borja
The summer months, December through February, are usually marked by lush green landscapes thanks to the high rainfall, peaking at 414mm (16.3") in December. The city experiences comforting temperatures in the range of 28.5°C (83.3°F) to 29.5°C (85.1°F) during the day time and slightly chillier nights with lows dipping to 20.7°C (69.3°F) to 20.9°C (69.6°F). However, the relative humidity could reach up to 90%, making the climate feel quite steamy.Autumn weather in San Borja
Autumn, spanning March to May, is when San Borja begins withdrawing from its rainiest period. Rainfall decreases progressively from 373mm (14.69") in March to a modest 70mm (2.76") by May. Temperatures plateau, with highs settling between 29.1°C (84.4°F) down to 27.1°C (80.8°F) and lows moderating from 20.4°C (68.7°F) to 17.3°C (63.1°F). Sunshine persists for about 5.7 to 6.6 hours daily, offering brightly lit and relatively dry days for outdoor activities.Winter weather in San Borja
Winter is a time of minimal rainfall and plentiful sunshine in San Borja. June initiates the driest period, with rainfall plunging to 70mm (2.76") and continuing to fall steadily until it bottoms out at a mere 57mm (2.24") in August. Daytime temperatures span from 27.1°C (80.8°F) to 30.2°C (86.4°F), coupled with lower nightly temperatures of 17.5°C (63.5°F) down to an annual low of 16.6°C (61.9°F) in July. Enjoy sunlit days, with 6.7 to 7.5 hours of sunshine, and surprisingly lower humidity levels, around 78 to 67%.Weather in January
January sees the start of the year with a blend of high humidity and significant rainfall. Weather is characterized by tropical moisture, making the surroundings lush and green. The rainfall can peak up to 410 millimeters (mm), showcasing one of the highest averages in the year. Weather in January »Weather in February
Transitioning from January, February's weather highlights the continuous tropical climate in San Borja. The city experiences heavy showers as the season proceeds. February echoes January's weather conditions, with a fractional decrease in rain and daylight hours. Weather in February »Weather in March
In March, the weather in San Borja subtly transforms. It's a transition point, where the rainfall begins to decrease but the high humidity persists. This atmospheric condition tends to amplify the tropical sensation in the city. Visitors can still observe the impact of the preceding wet months. Weather in March »Weather in April
Compared to previous months, April experiences less rainfall with a drop to 256mm (10.08"), marking a slow departure from the torrential rains. The weather pattern in San Borja maintains its tropical charm, but the constant showers gradually diminish. Weather in April »Weather in May
May brings about a noticeable change in San Borja's weather pattern. The rainfall continues to taper off, declaring the start of the dry season. As the weather shifts, the city commences a transformation, reflecting the influence of climate on its surrounding. Weather in May »Weather in June
A warm yet drier phase marks the weather in June in San Borja, Bolivia. After the monsoon exit, the city enlightens in a bright haze under increased sunshine. The weather is adorned with clear skies and basks in the glow of the sun. Weather in June »Weather in July
As the year progresses to July, San Borja delights in the least amount of rainfall, measured around 67mm (2.64"). The city's weather remains visibly warm, but the drastic reduction in rain introduces a new phase. The minimized showers create an ideal atmosphere for perceiving San Borja's assorted topographies. Weather in July »Weather in August
The weather in August in San Borja, Bolivia, bears a remarkable contrast from the initial months of the year. The rainfall remains reasonably low, maintaining the dry season. The city savors the brevity of showers paired with abundant sunshine, perfect for outdoor explorations. Weather in August »Weather in September
September sees the weather in San Borja gently shifting gears. The city undergoes climate shifts further, preparing for the impending incoming wet season. There's an infinitesimal increase in rain compared to the prior months, signaling a change. Weather in September »Weather in October
October's weather in San Borja signals the return of the usual rainfall pattern. The city revisits its previous rhythm with an increase in showers. The weather evolves, reflecting the shift from dry to wet conditions. October proclaims the transition, the city further amplifying its tropical environment. Weather in October »Weather in November
November ushers in a significant increase in rainfall in San Borja. As the weather transitions, the city anticipates the arrival of the prominent wet season. Rain showers redefine the surroundings, marking the revival of the green foliage. Weather in November »Weather in December
December wraps up the year in San Borja, Bolivia, by reinstating its characteristic rainfall. The weather is marked by a gradual increase in rain, a distinctive trait of San Borja's climatic pattern. The city, basking in December's rains, embraces the thriving lushness around it. Weather in December »Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In San Borja, Bolivia, during the entire year, the rain falls for 251.7 days and collects up to 2897mm (114.06") of precipitation.
The months with the highest UV index in San Borja are January, March, April, June through December, with an average maximum UV index of 6.
The most humid month in San Borja is February, with an average relative humidity of 90%.
February has the least sunshine of the year in San Borja, with an average of 4.8h of sunshine.
The months with the lowest UV index in San Borja, Bolivia, are February and May, with an average maximum UV index of 5.
June stands out as San Borja's coldest month, with an average high-temperature of 27.1°C (80.8°F) and a low-temperature of 17.3°C (63.1°F).
The month with the shortest days is June, with an average of 11h and 18min of daylight.
The month with the least rainfall is August, when the rain falls for 11 days and typically collects 57mm (2.24") of precipitation.
The month with the most sunshine in San Borja is August, with an average of 9h of sunshine.
September brings the highest temperatures, with an average high of 32.5°C (90.5°F) and an average low of 19.4°C (66.9°F).
September is the least humid month in San Borja, Bolivia, with an average relative humidity of 65%.
December is the month with the most rainfall. Rain falls for 28.1 days and accumulates 414mm (16.3") of precipitation.
December has the longest days of the year in San Borja, Bolivia, with an average of 13h and 0min of daylight.
San Borja, Bolivia, does not utilize Daylight Saving Time (DST). -04 timezone is used over the entire year.
Average temperature
San Borja, Bolivia
The warmest month (with the highest average high temperature) is September (32.5°C).
The month with the lowest average high temperature is June (27.1°C).
The month with the highest average low temperature is December (21°C).
The coldest month (with the lowest average low temperature) is July (16.6°C).
Average pressure
San Borja, Bolivia
- Average pressure in January:
1010.2mbar - Average pressure in February:
1010.2mbar - Average pressure in March:
1011.2mbar - Average pressure in April:
1012.5mbar - Average pressure in May:
1013.7mbar - Average pressure in June:
1014.7mbar
- Average pressure in July:
1015.1mbar - Average pressure in August:
1014.2mbar - Average pressure in September:
1012.5mbar - Average pressure in October:
1010.6mbar - Average pressure in November:
1009mbar - Average pressure in December:
1009.2mbar
The month with the highest atmospheric pressure is July (1015.1mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed
San Borja, Bolivia
- Average wind speed in January:
4.8km/h - Average wind speed in February:
4.6km/h - Average wind speed in March:
4.3km/h - Average wind speed in April:
4.4km/h - Average wind speed in May:
3.9km/h - Average wind speed in June:
4.1km/h
- Average wind speed in July:
4.4km/h - Average wind speed in August:
5km/h - Average wind speed in September:
5.4km/h - Average wind speed in October:
5.1km/h - Average wind speed in November:
5km/h - Average wind speed in December:
5.3km/h
The windiest month (with the highest average wind speed) is September (5.4km/h).
The calmest month (with the lowest average wind speed) is May (3.9km/h).
Average humidity
San Borja, Bolivia
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is September (65%).
Average rainfall
San Borja, Bolivia
- Average rainfall in January:
410mm - Average rainfall in February:
392mm - Average rainfall in March:
373mm - Average rainfall in April:
256mm - Average rainfall in May:
188mm - Average rainfall in June:
70mm
The wettest month (with the highest rainfall) is December (414mm).
The driest month (with the least rainfall) is August (57mm).
Average rainfall days
San Borja, Bolivia
- Average rainfall days in January:
27.5 days - Average rainfall days in February:
26.7 days - Average rainfall days in March:
27 days - Average rainfall days in April:
21.8 days - Average rainfall days in May:
19.3 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
13.4 days - Average rainfall days in August:
11 days - Average rainfall days in September:
14.9 days - Average rainfall days in October:
23.2 days - Average rainfall days in November:
22.5 days - Average rainfall days in December:
28.1 days
The month with the highest number of rainy days is December (28.1 days).
The month with the least rainy days is August (11 days).
Average daylight / Average sunshine
San Borja, Bolivia
- Average daylight in January:
12h and 54min - Average daylight in February:
12h and 36min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 48min - Average daylight in May:
11h and 24min - Average daylight in June:
11h and 18min
- Average daylight in July:
11h and 18min - Average daylight in August:
11h and 36min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 24min - Average daylight in November:
12h and 48min - Average daylight in December:
13h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in January:
5h and 54min - Average sunshine in February:
4h and 48min - Average sunshine in March:
5h and 42min - Average sunshine in April:
6h and 36min - Average sunshine in May:
6h and 18min - Average sunshine in June:
6h and 42min
- Average sunshine in July:
7h and 30min - Average sunshine in August:
9h and 0min - Average sunshine in September:
8h and 54min - Average sunshine in October:
8h and 36min - Average sunshine in November:
8h and 30min - Average sunshine in December:
7h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
San Borja, Bolivia
- Average sunshine days in January:
2.9 days - Average sunshine days in February:
0.9 days - Average sunshine days in March:
3.6 days - Average sunshine days in April:
7.4 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
15.8 days - Average sunshine days in August:
19.7 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
7.2 days - Average sunshine days in November:
6.5 days - Average sunshine days in December:
2.2 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is February (0.9 days).
Average UV index
San Borja, Bolivia
The months with the highest UV index are January, March, April, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are February and May (UV index 5).
Average cloud cover
San Borja, Bolivia
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
San Borja, Bolivia
The months with the highest visibility are August and September (9km).
The months with the lowest visibility are January, February, March, April and May (6km).
