July Weather in Saint Johns, United States

Last updated: June 24, 2025

In July, the average temperature in Saint Johns, United States hovers around 24°C (75°F). Expect a comfortable range, with minimums dipping to 12°C (53°F) and maximums soaring to 36°C (97°F). Precipitation is moderate, averaging 68 mm (2.7 in) spread across 11 days, and the air maintains a humidity level of 80%.

July Temperature in Saint Johns

In July in Saint Johns, the average temperature is 24°C (75°F). Maximums can reach 36°C (97°F), and minimums can be as low as 12°C (53°F). This makes Saint Johns an ideal destination for travelers looking to enjoy warm weather while still having the option for cooler excursions.

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

The chart illustrates July 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, July typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (97°F) and lows dropping to around 12°C (53°F).

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

July Precipitation in Saint Johns

In Saint Johns in July, the total precipitation amount is 68 mm (2.7 in) spread over a duration of 11 days.

July Precipitation Trends in Saint Johns

The chart displays monthly precipitation patterns in Saint Johns, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Saint Johns, July typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Saint Johns

In Saint Johns in July humidity is 80%. With an average temperature of 24°C (75°F), this humidity feels like a warm, sticky blanket enveloping you, making travel slightly uncomfortable as sweat clings to your skin and the air feels thick, urging you to seek shade and hydration frequently.

July Average Humidity in Saint Johns

This chart illustrates the average monthly humidity levels in Saint Johns, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Saint Johns is approximately 80%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Saint Johns

In Saint Johns in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Saint Johns.

Maximum UV Index Levels in Saint Johns for July

The chart shows the monthly maximum UV Index (UVI) for Saint Johns in July, 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 July, the maximum UV index in Saint Johns typically reaches 10, which falls under the very high exposure category.

Data source: Saint Johns July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	63 mm (2.5 inches)	88%	low
February Weather	-3°C (27°F)	66 mm (2.6 inches)	87%	moderate
March Weather	2°C (36°F)	63 mm (2.5 inches)	85%	moderate
April Weather	8°C (47°F)	88 mm (3.5 inches)	86%	very high
May Weather	15°C (60°F)	121 mm (4.8 inches)	80%	very high
June Weather	21°C (70°F)	117 mm (4.6 inches)	80%	very high
July Weather	24°C (75°F)	68 mm (2.7 inches)	80%	very high
August Weather	22°C (72°F)	68 mm (2.7 inches)	80%	very high
September Weather	18°C (65°F)	101 mm (4.0 inches)	80%	high
October Weather	12°C (53°F)	116 mm (4.6 inches)	84%	moderate
November Weather	3°C (38°F)	63 mm (2.5 inches)	89%	moderate
December Weather	0°C (32°F)	60 mm (2.4 inches)	86%	low