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September Weather in Fresno, Colombia

Last updated: August 23, 2025

In September, the average temperature in Fresno, Colombia is a pleasant 23°C (74°F). You'll experience a comfortable range with a minimum of 14°C (58°F) and a maximum reaching 32°C (91°F). However, do prepare for some rain, as the region sees about 21 mm (0.8 in) of precipitation spread over 4 days. With an average humidity of 80%, expect a warm and slightly muggy atmosphere during your stay!

September Temperature in Fresno

In September in Fresno, the average temperature is 23°C (74°F). Maximums can reach 32°C (91°F) and minimums can be as low as 14°C (58°F). This makes Fresno an ideal destination for travelers seeking pleasant weather and comfortable conditions for outdoor activities.

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

The chart illustrates September temperature patterns in Fresno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fresno, September typically has an average temperature of 23°C (74°F), with highs reaching up to 32°C (91°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec727372727273737474727172
Data source: Temperature data for Fresno 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 Fresno

In Fresno in September, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.

September Precipitation Trends in Fresno

The chart displays monthly precipitation patterns in Fresno, 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 Fresno, September typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec56618710771127132112917658
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fresno

In Fresno in September humidity is 80%. With an average temperature of 23°C (74°F), this humidity feels like walking through a warm, damp blanket, making travel feel sticky and muggy, where every step leaves you yearning for a cool breeze.

September Average Humidity in Fresno

This chart illustrates the average monthly humidity levels in Fresno, 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 Fresno is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%77%80%83%88%87%85%80%80%85%87%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fresno

In Fresno in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Fresno.

Maximum UV Index Levels in Fresno for September

The chart shows the monthly maximum UV Index (UVI) for Fresno 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 Fresno typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141517171615151515151412
Data source: Fresno 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 Fresno Compares to Other Months

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

This table compares monthly weather conditions in Fresno, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)56 mm (2.2 inches)78%extreme
February Weather23°C (73°F)61 mm (2.4 inches)77%extreme
March Weather22°C (73°F)86 mm (3.4 inches)80%extreme
April Weather22°C (72°F)107 mm (4.2 inches)83%extreme
May Weather22°C (72°F)71 mm (2.8 inches)87%extreme
June Weather23°C (73°F)12 mm (0.5 inches)87%extreme
July Weather23°C (74°F)7 mm (0.3 inches)85%extreme
August Weather23°C (74°F)13 mm (0.5 inches)80%extreme
September Weather23°C (74°F)21 mm (0.8 inches)80%extreme
October Weather22°C (73°F)129 mm (5.1 inches)85%extreme
November Weather22°C (72°F)176 mm (6.9 inches)87%extreme
December Weather22°C (72°F)58 mm (2.3 inches)83%extreme

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