September Weather in Largo, United States

Last updated: June 24, 2025

In Largo, United States, the average temperature in September is a comfortable 22°C (72°F). Visitors can expect a range, with minimums dipping to 8°C (47°F) and maximums soaring up to 35°C (95°F). During this month, precipitation typically measures 107 mm (4.2 in) over about 10 days, and the average humidity lingers around 75%, creating a warm and somewhat humid atmosphere.

September Temperature in Largo

In September in Largo, the average temperature is 22°C (72°F). Maximum can reach 35°C (95°F), and minimum can be as low as 8°C (47°F). This range makes it an ideal time for travelers seeking mild weather and the chance to enjoy both warm and cooler moments.

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

The chart illustrates September temperature patterns in Largo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Largo, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 8°C (47°F).

Data source: Temperature data for Largo generated using information from the Copernicus Climate Change Service.

September Precipitation in Largo

In Largo in September, the precipitation amount is 107 mm (4.2 in) accumulated over a period of 10 days.

September Precipitation Trends in Largo

The chart displays monthly precipitation patterns in Largo, 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 Largo, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Largo

In Largo in September, humidity is 75%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet requiring travelers to stay hydrated and take breaks in shaded areas.

September Average Humidity in Largo

This chart illustrates the average monthly humidity levels in Largo, 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 Largo is approximately 75%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Largo

In Largo in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Largo.

Maximum UV Index Levels in Largo for September

The chart shows the monthly maximum UV Index (UVI) for Largo 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 Largo typically reaches 8, which falls under the very high exposure category.

Data source: Largo 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 Largo Compares to Other Months

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

This table compares monthly weather conditions in Largo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (37°F)	61 mm (2.4 inches)	84%	moderate
February Weather	5°C (41°F)	99 mm (3.9 inches)	83%	moderate
March Weather	8°C (47°F)	86 mm (3.4 inches)	83%	high
April Weather	14°C (57°F)	101 mm (4.0 inches)	81%	very high
May Weather	19°C (66°F)	134 mm (5.3 inches)	78%	very high
June Weather	24°C (75°F)	118 mm (4.7 inches)	79%	very high
July Weather	27°C (80°F)	191 mm (7.5 inches)	74%	very high
August Weather	25°C (78°F)	168 mm (6.6 inches)	72%	very high
September Weather	22°C (72°F)	107 mm (4.2 inches)	75%	very high
October Weather	17°C (63°F)	115 mm (4.5 inches)	81%	high
November Weather	9°C (48°F)	79 mm (3.1 inches)	85%	moderate
December Weather	5°C (41°F)	92 mm (3.6 inches)	84%	moderate