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September Weather in Rockport, United States

Last updated: June 24, 2025

In Rockport, United States, the average temperature in September hovers around 25°C (76°F), making it a pleasant destination. However, temperatures can range from a cool 10°C (51°F) to a sizzling 38°C (101°F). Expect around 90 mm (3.6 in) of precipitation spread over 7 days, while average humidity sits at a comfortable 59%.

September Temperature in Rockport

In September in Rockport, the average temperature is 25°C (76°F). The maximum can reach 38°C (101°F), while the minimum can be as low as 10°C (51°F). This range of temperatures makes it a great time for travelers to enjoy a variety of outdoor activities and experience the local culture comfortably.

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

The chart illustrates September temperature patterns in Rockport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rockport, September typically has an average temperature of 25°C (76°F), with highs reaching up to 38°C (101°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec434656617179828076645248
Data source: Temperature data for Rockport 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 Rockport

In Rockport in September, the total precipitation amount is 90 mm (3.6 in) over a period of 7 days.

September Precipitation Trends in Rockport

The chart displays monthly precipitation patterns in Rockport, 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 Rockport, September typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec8914815015816311097118909378136
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rockport

In Rockport in September, humidity is 59%. With an average temperature of 25°C (76°F), this humidity feels like a warm, enveloping blanket, making it quite pleasant for traveling as long as you stay hydrated and take periodic breaks in the shade.

September Average Humidity in Rockport

This chart illustrates the average monthly humidity levels in Rockport, 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 Rockport 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 Rockport

In Rockport 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 Rockport.

Maximum UV Index Levels in Rockport for September

The chart shows the monthly maximum UV Index (UVI) for Rockport 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 Rockport typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109754
Data source: Rockport 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 Rockport Compares to Other Months

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

This table compares monthly weather conditions in Rockport, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)89 mm (3.5 inches)82%moderate
February Weather8°C (46°F)148 mm (5.8 inches)79%high
March Weather13°C (56°F)150 mm (5.9 inches)77%very high
April Weather16°C (61°F)158 mm (6.2 inches)78%very high
May Weather22°C (71°F)163 mm (6.4 inches)82%extreme
June Weather26°C (79°F)110 mm (4.3 inches)81%extreme
July Weather28°C (82°F)97 mm (3.8 inches)75%extreme
August Weather27°C (80°F)117 mm (4.6 inches)61%very high
September Weather25°C (76°F)90 mm (3.6 inches)59%very high
October Weather18°C (65°F)93 mm (3.7 inches)69%high
November Weather11°C (52°F)78 mm (3.1 inches)82%moderate
December Weather9°C (48°F)136 mm (5.4 inches)87%moderate

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