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September Weather in Panama, United States

Last updated: June 24, 2025

In Panama, United States, the average temperature in September hovers around 25°C (77°F). During this time, temperatures can range from a refreshing 10°C (50°F) to a sweltering 37°C (100°F). Be prepared for about 71 mm (2.8 in) of precipitation spread over 5 days, accompanied by an average humidity of 59%.

September Temperature in Panama

In September in Panama, the average temperature is 25°C (77°F). Maximums can reach 37°C (100°F), and minimums can be as low as 10°C (50°F). Be prepared for warm days and cool nights when traveling to Panama during this time.

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

The chart illustrates September temperature patterns in Panama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Panama, September typically has an average temperature of 25°C (77°F), with highs reaching up to 37°C (100°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec414555617179838177645247
Data source: Temperature data for Panama 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 Panama

In Panama in September, the precipitation amount is 71 mm (2.8 in) over the course of 5 days.

September Precipitation Trends in Panama

The chart displays monthly precipitation patterns in Panama, 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 Panama, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec851091141301977776112711406682
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Panama

In Panama in September humidity is 59%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls while exploring the sights, though you might want to stay hydrated and take breaks in the shade to fully enjoy the experience.

September Average Humidity in Panama

This chart illustrates the average monthly humidity levels in Panama, 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 Panama is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%77%78%82%81%75%61%59%69%82%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Panama

In Panama in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Panama.

Maximum UV Index Levels in Panama for September

The chart shows the monthly maximum UV Index (UVI) for Panama 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 Panama typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109754
Data source: Panama 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 Panama Compares to Other Months

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

This table compares monthly weather conditions in Panama, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)85 mm (3.3 inches)82%moderate
February Weather7°C (45°F)109 mm (4.3 inches)79%high
March Weather13°C (56°F)114 mm (4.5 inches)77%high
April Weather16°C (61°F)130 mm (5.1 inches)78%very high
May Weather22°C (71°F)197 mm (7.7 inches)82%very high
June Weather26°C (79°F)77 mm (3.0 inches)81%extreme
July Weather28°C (83°F)76 mm (3.0 inches)75%extreme
August Weather27°C (81°F)112 mm (4.4 inches)61%very high
September Weather25°C (77°F)71 mm (2.8 inches)59%very high
October Weather18°C (64°F)140 mm (5.5 inches)69%high
November Weather11°C (52°F)66 mm (2.6 inches)82%moderate
December Weather8°C (47°F)82 mm (3.2 inches)87%moderate

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