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September Weather in Fonseca, Colombia

Last updated: August 23, 2025

In September, the average temperature in Fonseca, Colombia hovers around 25°C (78°F). However, prepare for variability: temperatures can dip to a minimum of 20°C (68°F) and peak at a scorching 34°C (94°F). Expect a fair amount of rain, with 175 mm (6.9 in) falling over approximately 26 days, contributing to an average humidity of 84%.

September Temperature in Fonseca

In September in Fonseca, the average temperature is a comfortable 25°C (78°F), making it an ideal time for travelers to explore outdoor activities. Maximum temperatures can reach 34°C (94°F), while the minimum can drop to a mild 20°C (68°F), ensuring a pleasant climate for all sorts of adventures.

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

The chart illustrates September temperature patterns in Fonseca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fonseca, September typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (94°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec767777787979797978777777
Data source: Temperature data for Fonseca 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 Fonseca

In Fonseca in September, the precipitation amount reaches 175 mm (6.9 in) over the course of 26 days.

September Precipitation Trends in Fonseca

The chart displays monthly precipitation patterns in Fonseca, 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 Fonseca, September typically receives around 175 mm (6.9 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec28256411820413911915717519912638
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fonseca

In Fonseca in September, humidity is 84%. With an average temperature of 25°C (78°F), this humidity feels like a warm, muggy embrace that can be quite stifling for traveling, making you crave cool breezes and plenty of hydration as you explore.

September Average Humidity in Fonseca

This chart illustrates the average monthly humidity levels in Fonseca, 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 Fonseca is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%65%64%64%65%77%85%85%84%82%79%69%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fonseca

In Fonseca in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Fonseca.

Maximum UV Index Levels in Fonseca for September

The chart shows the monthly maximum UV Index (UVI) for Fonseca 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 Fonseca typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111214141313131313131110
Data source: Fonseca 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 Fonseca Compares to Other Months

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

This table compares monthly weather conditions in Fonseca, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)28 mm (1.1 inches)65%extreme
February Weather25°C (77°F)25 mm (1.0 inches)65%extreme
March Weather25°C (78°F)64 mm (2.5 inches)64%extreme
April Weather26°C (79°F)118 mm (4.6 inches)64%extreme
May Weather26°C (79°F)204 mm (8.0 inches)65%extreme
June Weather26°C (79°F)139 mm (5.5 inches)77%extreme
July Weather26°C (79°F)119 mm (4.7 inches)85%extreme
August Weather26°C (79°F)157 mm (6.2 inches)85%extreme
September Weather25°C (78°F)175 mm (6.9 inches)84%extreme
October Weather25°C (77°F)199 mm (7.8 inches)82%extreme
November Weather25°C (77°F)126 mm (5.0 inches)79%extreme
December Weather25°C (77°F)38 mm (1.5 inches)69%very high

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