September Weather in Syracuse

Last updated: March 2, 2024

The weather in Syracuse, United States, during September is characterized by an average temperature of 22°C (72°F). Highs can soar to 37°C (99°F), while lows may dip to 7°C (45°F). Typically, the humidity level in Syracuse throughout September hovers around 79%.

7°C (45°F)

Minimum temperature

22°C (72°F)

Average temperature

37°C (99°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In September, Syracuse averages 37 mm (1.5 inches) of rainfall, typically over the course of 4 rainy days. The month enjoys an average of 12 hours 22 minutes of daylight, with the sun shining for approximately 10 hours 4 minutes each day. Additionally, there is a 77% probability of sunny days during this period.

37 mm (1.5 inches)

Precipitation

4 rainy days

Rainy days

10 hours 4 minutes

Sunshine hours

77%

Chance of sun

UV Index

In September, the UV Index in Syracuse reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	1	2	3	5	8	9	9	8	6	4	2	1	1
Exposure	Low		Moderate		VeryHigh				High	Moderate	Low
Time to burn	45 min		30 min		15 min				25 min	30 min	45 min