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September Weather in Nicolas Romero, Mexico

Last updated: August 27, 2025

In September, the average temperature in Nicolas Romero, Mexico hovers around 18°C (65°F). While you can expect a minimum of 9°C (48°F) and a maximum of 28°C (82°F), be prepared for the humidity, which averages a high 86%. Additionally, anticipate about 179 mm (7.0 in) of precipitation spread across 22 days.

September Temperature in Nicolas Romero

In September in Nicolas Romero, the average temperature is 18°C (65°F). The maximum can reach 28°C (82°F), while the minimum can drop to as low as 9°C (48°F). This mild weather makes it an ideal time for travelers to explore the sights and enjoy outdoor activities.

September Weather in Nicolas Romero: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nicolas Romero, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nicolas Romero, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (82°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec525661656972676864635853
Data source: Temperature data for Nicolas Romero 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 Nicolas Romero

In Nicolas Romero in September, the total precipitation amount is 179 mm (7.0 in) spread over 22 days.

September Precipitation Trends in Nicolas Romero

The chart displays monthly precipitation patterns in Nicolas Romero, 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 Nicolas Romero, September typically receives around 179 mm (7.0 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec1816841951139110179702112
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nicolas Romero

In Nicolas Romero in September humidity is 86%. With an average temperature of 18°C (65°F), this humidity feels like you’re wrapped in a warm, heavy blanket, making outdoor activities feel quite muggy and sticky for traveling.

September Average Humidity in Nicolas Romero

This chart illustrates the average monthly humidity levels in Nicolas Romero, 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 Nicolas Romero is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%64%49%47%55%77%82%83%86%83%80%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nicolas Romero

In Nicolas Romero in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Nicolas Romero, you can check here.

Maximum UV Index Levels in Nicolas Romero for September

The chart shows the monthly maximum UV Index (UVI) for Nicolas Romero 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 Nicolas Romero typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811131515141414141297
Data source: Nicolas Romero 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 Nicolas Romero Compares to Other Months

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

This table compares monthly weather conditions in Nicolas Romero, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)18 mm (0.7 inches)71%very high
February Weather13°C (56°F)16 mm (0.6 inches)64%extreme
March Weather16°C (61°F)8 mm (0.3 inches)49%extreme
April Weather18°C (65°F)4 mm (0.2 inches)47%extreme
May Weather21°C (69°F)19 mm (0.7 inches)55%extreme
June Weather22°C (72°F)51 mm (2.0 inches)77%extreme
July Weather20°C (68°F)139 mm (5.5 inches)82%extreme
August Weather20°C (68°F)110 mm (4.3 inches)83%extreme
September Weather18°C (65°F)179 mm (7.0 inches)86%extreme
October Weather17°C (64°F)70 mm (2.7 inches)83%extreme
November Weather14°C (58°F)21 mm (0.8 inches)80%very high
December Weather12°C (53°F)12 mm (0.5 inches)83%high

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