nomadseason

September Weather in Juliaca, Peru

Last updated: August 27, 2025

In September, the average temperature in Juliaca, Peru hovers around 10°C (50°F). Expect temperature swings, with a minimum of -4°C (24°F) and a maximum reaching 23°C (73°F). During this month, precipitation typically totals 52 mm (2.1 in) across 9 days, while the average humidity remains at a comfortable 67%.

September Temperature in Juliaca

In September in Juliaca, the average temperature is 10°C (50°F). Maximum temperatures can reach 23°C (73°F), while minimums may drop as low as -4°C (24°F). Be prepared for a mix of mild and chilly weather if you're planning to travel during this time.

September Weather in Juliaca: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Juliaca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Juliaca, September typically has an average temperature of 10°C (50°F), with highs reaching up to 23°C (73°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec494949474645454849505351
Data source: Temperature data for Juliaca generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Juliaca

In Juliaca in September, the total precipitation amount is 52 mm (2.1 in) over the course of 9 days.

September Precipitation Trends in Juliaca

The chart displays monthly precipitation patterns in Juliaca, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Juliaca, September typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec1762021968932795528175169
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Juliaca

In Juliaca in September humidity is 67%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill, making it essential for travelers to layer their clothing and prepare for a rather brisk experience while exploring the surroundings.

September Average Humidity in Juliaca

This chart illustrates the average monthly humidity levels in Juliaca, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Juliaca is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%92%91%87%76%57%51%67%77%85%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Juliaca

In Juliaca in September, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Juliaca.

Maximum UV Index Levels in Juliaca for September

The chart shows the monthly maximum UV Index (UVI) for Juliaca in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Juliaca typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec192018171311121416191919
Data source: Juliaca September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Juliaca Compares to Other Months

Weather in Juliaca varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Juliaca, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Juliaca, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)176 mm (6.9 inches)92%extreme
February Weather10°C (49°F)202 mm (7.9 inches)93%extreme
March Weather9°C (49°F)196 mm (7.7 inches)92%extreme
April Weather9°C (48°F)89 mm (3.5 inches)91%extreme
May Weather8°C (46°F)32 mm (1.2 inches)87%extreme
June Weather7°C (45°F)7 mm (0.3 inches)76%extreme
July Weather7°C (45°F)9 mm (0.4 inches)57%extreme
August Weather9°C (48°F)5 mm (0.2 inches)51%extreme
September Weather10°C (50°F)52 mm (2.1 inches)67%extreme
October Weather10°C (51°F)81 mm (3.2 inches)77%extreme
November Weather12°C (53°F)74 mm (2.9 inches)85%extreme
December Weather11°C (51°F)169 mm (6.6 inches)90%extreme

Compare Juliaca's Climate with Cities Worldwide