Monthly climate guide
Tarija weather in September
Expect warm weather in Tarija in September: afternoons reach about 23°C (74°F), while nights drop to around 4°C (39°F). Around 7 mm of rain falls over the month (very dry), and skies are a mix of sun and cloud. Daytime highs are 2°C warmer than August and about the same as October.
What stands out in September
- September is Tarija's second warmest month.
- It's one of the drier months, with about 84% less rain than Tarija's average.
- September sits in Tarija's drier season — usually a comfortable time to visit.
- Evenings cool off sharply: the daily range is around 20°C, so pack a layer.
Avg high
23°C
74°F
Avg low
4°C
39°F
Rainfall
7 mm
very dry
Humidity
49%
relative
Sky
39%
cloud · a mix of sun and cloud
Tarija weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 21°C / 71°F | 9°C / 48°F | 132 mm | 73% | 67% |
| February | 21°C / 69°F | 9°C / 47°F | 106 mm | 78% | 71% |
| March | 21°C / 69°F | 8°C / 46°F | 63 mm | 77% | 66% |
| April | 21°C / 69°F | 6°C / 43°F | 25 mm | 72% | 56% |
| May | 20°C / 69°F | 2°C / 35°F | 7 mm | 60% | 48% |
| June | 20°C / 68°F | 0°C / 31°F | 3 mm | 46% | 42% |
| July | 20°C / 68°F | 0°C / 31°F | 3 mm | 42% | 37% |
| August | 22°C / 71°F | 1°C / 33°F | 1 mm | 43% | 29% |
| September | 23°C / 74°F | 4°C / 39°F | 7 mm | 49% | 39% |
| October | 24°C / 75°F | 7°C / 44°F | 33 mm | 59% | 56% |
| November | 23°C / 74°F | 8°C / 46°F | 51 mm | 65% | 62% |
| December | 23°C / 73°F | 9°C / 48°F | 86 mm | 68% | 68% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- Sunglasses
Is September a good time to visit Tarija?
Compare the months in the chart above to find your ideal window.
Best time to visit Tarija →Other Bolivia cities in September
Cite or embed this data
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Tarija weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/bolivia/tarija/september
<a href="https://weathercompare.eu/weather/bolivia/tarija/september">Tarija weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/bolivia/tarija" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Tarija weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/bolivia/tarija/september">Tarija weather in September</a> – WeatherCompare</p>
Tarija in September: quick answers
Is September a good time to visit Tarija?
September is a reasonable time for Tarija: highs around 23°C and about 7 mm of rain, though not one of the three best months.
How warm is Tarija in September?
Average highs are about 23°C (74°F) and average lows about 4°C (39°F), based on 10 years of daily data.
Does it rain a lot in Tarija in September?
Tarija typically gets around 7 mm of rain in September — very dry.
Figures are long-term averages for the area around Tarija (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.