October Weather in Saint Johns, United States

Last updated: June 24, 2025

In Saint Johns, United States, the average temperature in October hovers around 14°C (57°F). Expect a broad range in temperatures, with minimums reaching as low as -10°C (13°F) and maximums soaring up to 31°C (87°F). The month brings 17 mm (0.7 in) of precipitation across about 4 days, coupled with an average humidity of 74%.

October Temperature in Saint Johns

In October in Saint Johns, the average temperature is 14°C (57°F). The maximum can reach 31°C (87°F), and the minimum can be as low as -10°C (13°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

October Weather in Saint Johns: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Saint Johns, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Johns, October typically has an average temperature of 14°C (57°F), with highs reaching up to 31°C (87°F) and lows dropping to around -10°C (13°F).

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

October Precipitation in Saint Johns

In Saint Johns in October, the precipitation amount is 17 mm (0.7 in) over a span of 4 days.

October Precipitation Trends in Saint Johns

The chart displays monthly precipitation patterns in Saint Johns, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Saint Johns, October typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 4 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Saint Johns

In Saint Johns in October, humidity is 74%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making it slightly uncomfortable for traveling, as you may find yourself quickly sweating and in need of frequent breaks to cool down.

October Average Humidity in Saint Johns

This chart illustrates the average monthly humidity levels in Saint Johns, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Saint Johns is approximately 74%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Saint Johns

In Saint Johns in October, 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 Saint Johns.

Maximum UV Index Levels in Saint Johns for October

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

Data source: Saint Johns October 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 October Weather in Saint Johns Compares to Other Months

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

This table compares monthly weather conditions in Saint Johns, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	25 mm (1.0 inches)	81%	moderate
February Weather	4°C (40°F)	29 mm (1.1 inches)	83%	high
March Weather	9°C (48°F)	21 mm (0.8 inches)	71%	very high
April Weather	14°C (57°F)	13 mm (0.5 inches)	61%	extreme
May Weather	18°C (64°F)	9 mm (0.4 inches)	48%	extreme
June Weather	24°C (76°F)	6 mm (0.3 inches)	36%	extreme
July Weather	25°C (77°F)	32 mm (1.3 inches)	37%	extreme
August Weather	24°C (76°F)	19 mm (0.8 inches)	46%	extreme
September Weather	21°C (69°F)	19 mm (0.8 inches)	62%	extreme
October Weather	14°C (57°F)	17 mm (0.7 inches)	74%	very high
November Weather	8°C (47°F)	12 mm (0.5 inches)	82%	high
December Weather	3°C (37°F)	19 mm (0.8 inches)	82%	moderate