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September Weather in Santa Teresa, United States

Last updated: June 24, 2025

In September, the average temperature in Santa Teresa, United States hovers around 25°C (78°F), making it a pleasantly warm destination. You can expect the temperature to range from a cool 10°C (50°F) to a sweltering 37°C (99°F). During this month, the area experiences an average precipitation of 29 mm (1.1 in) over about 5 days, contributing to the 74% humidity that adds a touch of tropical feel to the climate.

September Temperature in Santa Teresa

In September in Santa Teresa, the average temperature is 25°C (78°F). Maximums can reach 37°C (99°F), and minimums can be as low as 10°C (50°F). It's an ideal time for travelers seeking warm weather and pleasant conditions for outdoor activities.

September Weather in Santa Teresa: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Teresa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Teresa, September typically has an average temperature of 25°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec455159687684848477675647
Data source: Temperature data for Santa Teresa 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 Santa Teresa

In Santa Teresa in September, the total precipitation amount is 29 mm (1.1 in) recorded over a span of 5 days.

September Precipitation Trends in Santa Teresa

The chart displays monthly precipitation patterns in Santa Teresa, 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 Santa Teresa, September typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1112164326313029191317
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Teresa

In Santa Teresa in September humidity is 74%. With an average temperature of 25°C (78°F), this humidity feels like you're enveloped in a warm, thick blanket, making outdoor activities feel more strenuous and necessitating frequent breaks and hydration for comfortable travel.

September Average Humidity in Santa Teresa

This chart illustrates the average monthly humidity levels in Santa Teresa, 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 Santa Teresa is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%77%65%53%51%51%60%63%74%75%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Teresa

In Santa Teresa 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 Santa Teresa.

Maximum UV Index Levels in Santa Teresa for September

The chart shows the monthly maximum UV Index (UVI) for Santa Teresa 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 Santa Teresa typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5810121313131211975
Data source: Santa Teresa 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 Santa Teresa Compares to Other Months

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

This table compares monthly weather conditions in Santa Teresa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)11 mm (0.4 inches)81%moderate
February Weather10°C (51°F)12 mm (0.5 inches)77%very high
March Weather15°C (59°F)16 mm (0.6 inches)65%very high
April Weather20°C (69°F)4 mm (0.1 inches)53%extreme
May Weather25°C (77°F)3 mm (0.1 inches)51%extreme
June Weather29°C (85°F)26 mm (1.0 inches)51%extreme
July Weather29°C (84°F)31 mm (1.2 inches)60%extreme
August Weather29°C (84°F)30 mm (1.2 inches)63%extreme
September Weather25°C (78°F)29 mm (1.1 inches)74%extreme
October Weather19°C (67°F)19 mm (0.7 inches)75%very high
November Weather13°C (56°F)13 mm (0.5 inches)82%high
December Weather8°C (47°F)17 mm (0.7 inches)87%moderate

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