Isla del Sol Weather in September
During September, Isla del Sol experiences moderate daytime temperatures of 14°C (57°F) and cooler nights around 6°C (43°F). Some rainfall is typical during this period.
Rainfall in Isla del Sol in September
You can expect rain on around 7 days based on historical patterns, with 45 mm (1.8 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Isla del Sol in September
Daytime highs in Isla del Sol in September reach 14°C (57°F), with nights around 6°C (43°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Isla del Sol.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bolivia, check out our Isla del Sol's climate page.
Isla del Sol Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
14°C (57°F)
Chance of Rain
24%
Precipitation
45 mm (1.8 in)
Rainy days
7 days
Historical weather for Isla del Sol in September
Browse day-by-day weather records for Isla del Sol spanning 21 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Isla del Sol historical weather extremes in September
Our historical data for Isla del Sol spans 2006 to 2025, revealing these weather extremes.
- On September 27, 2010, temperatures climbed to 15°C (59°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 8°C (46°F), recorded on September 3, 2014.
- Nighttime temperatures dropped to 3°C (37°F) on September 5, 2014, marking the coldest September night on record.
- The wettest September day on record brought 12 mm (0.5 in) of precipitation to Isla del Sol (September 30, 2025).
Best Places in Bolivia in September
Find out more about the weather in Bolivia and which places have the best travel conditions in this month. See all of Bolivia in September →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Isla del Sol in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days.What To Do in Isla del Sol in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bolivia, check out our Isla del Sol's climate page.
See the full Isla del Sol climate overview or explore weather in Bolivia.
