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September Weather in Jarinu, Brazil

Last updated: August 22, 2025

In September, the average temperature in Jarinu, Brazil is a comfortable 21°C (70°F). Expect a range that can dip to a cool 9°C (49°F) and soar to a warm 35°C (95°F). With an average precipitation of 45 mm (1.8 in) over 6 days, you might want to pack an umbrella! The atmosphere is relatively pleasant with an average humidity of 58%.

September Temperature in Jarinu

In September in Jarinu, the average temperature is 21°C (70°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as 9°C (49°F). This weather makes Jarinu an ideal destination for travelers seeking both warmth and refreshing cooler evenings.

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

The chart illustrates September temperature patterns in Jarinu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jarinu, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (95°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec747373696564626470717073
Data source: Temperature data for Jarinu generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Jarinu

In Jarinu in September, the precipitation amount is 45 mm (1.8 in) over the course of 6 days.

September Precipitation Trends in Jarinu

The chart displays monthly precipitation patterns in Jarinu, 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 Jarinu, September typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec213191136564936155145131155173
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jarinu

In Jarinu in September, humidity is 58%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, creating a tropical atmosphere that's perfect for leisurely strolls but may require frequent breaks to stay hydrated during your travels.

September Average Humidity in Jarinu

This chart illustrates the average monthly humidity levels in Jarinu, 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 Jarinu is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%84%79%77%72%65%58%50%75%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jarinu

In Jarinu in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Jarinu.

Maximum UV Index Levels in Jarinu for September

The chart shows the monthly maximum UV Index (UVI) for Jarinu 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 Jarinu typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161613118671011131416
Data source: Jarinu 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 Jarinu Compares to Other Months

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

This table compares monthly weather conditions in Jarinu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)213 mm (8.4 inches)88%extreme
February Weather23°C (73°F)191 mm (7.5 inches)88%extreme
March Weather23°C (73°F)136 mm (5.3 inches)87%extreme
April Weather21°C (70°F)56 mm (2.2 inches)84%extreme
May Weather18°C (65°F)48 mm (1.9 inches)79%very high
June Weather18°C (64°F)36 mm (1.4 inches)77%high
July Weather17°C (62°F)15 mm (0.6 inches)72%high
August Weather18°C (64°F)51 mm (2.0 inches)65%very high
September Weather21°C (70°F)45 mm (1.8 inches)58%extreme
October Weather22°C (71°F)131 mm (5.1 inches)50%extreme
November Weather21°C (71°F)155 mm (6.1 inches)75%extreme
December Weather23°C (73°F)173 mm (6.8 inches)80%extreme

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