September Weather in Juli, Peru

Last updated: August 27, 2025

In September, the average temperature in Juli, Peru hovers around 9°C (49°F), offering a mild yet crisp atmosphere. Be prepared for temperature fluctuations, as it can dip to a chilly -3°C (26°F) and reach a pleasant 19°C (66°F). With 60 mm (2.4 in) of precipitation spread over 12 days, you'll want to bring an umbrella! The average humidity is around 70%, adding a touch of dampness to the air.

September Temperature in Juli

In September in Juli, the average temperature is 9°C (49°F). The maximum can reach 19°C (66°F), while the minimum can be as low as -3°C (26°F). Be prepared for a mix of cool and mild weather, making it a great time for outdoor exploration or cozy indoor activities.

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

The chart illustrates September temperature patterns in Juli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Juli, September typically has an average temperature of 9°C (49°F), with highs reaching up to 19°C (66°F) and lows dropping to around -3°C (26°F).

Data source: Temperature data for Juli generated using information from the Copernicus Climate Change Service.

September Precipitation in Juli

In Juli in September, the precipitation amount is 60 mm (2.4 in) over a span of 12 days.

September Precipitation Trends in Juli

The chart displays monthly precipitation patterns in Juli, 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 Juli, September typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Juli

In Juli in September, humidity is 70%. With an average temperature of 9°C (49°F), this humidity feels like a chilly dampness that seeps into your bones, making it necessary to dress in layers and pack an umbrella for your travels.

September Average Humidity in Juli

This chart illustrates the average monthly humidity levels in Juli, 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 Juli is approximately 70%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Juli

In Juli 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 Juli.

Maximum UV Index Levels in Juli for September

The chart shows the monthly maximum UV Index (UVI) for Juli 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 Juli typically reaches 16, which falls under the extreme exposure category.

Data source: Juli 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 Juli Compares to Other Months

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

This table compares monthly weather conditions in Juli, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	196 mm (7.7 inches)	91%	extreme
February Weather	10°C (50°F)	236 mm (9.3 inches)	91%	extreme
March Weather	9°C (49°F)	201 mm (7.9 inches)	91%	extreme
April Weather	9°C (48°F)	89 mm (3.5 inches)	88%	extreme
May Weather	8°C (47°F)	35 mm (1.4 inches)	87%	extreme
June Weather	7°C (45°F)	17 mm (0.7 inches)	79%	extreme
July Weather	7°C (45°F)	15 mm (0.6 inches)	64%	extreme
August Weather	8°C (47°F)	16 mm (0.6 inches)	62%	extreme
September Weather	9°C (49°F)	60 mm (2.4 inches)	70%	extreme
October Weather	10°C (50°F)	84 mm (3.3 inches)	75%	extreme
November Weather	11°C (52°F)	94 mm (3.7 inches)	84%	extreme
December Weather	10°C (51°F)	197 mm (7.7 inches)	87%	extreme