Trenton Weather in September

Thinking of visiting Trenton in September? Expect high temperatures reaching 26°C (79°F) during the day, dropping to 14°C (57°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Trenton in September

You can expect rain on roughly 8 days based on historical data, averaging 89 mm (3.5 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Trenton in September

September is a good time to be in Trenton. Days are perfect, reaching 26°C (79°F), with nights around 14°C (57°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Trenton in September

Expect sunny days throughout the month, with an estimated 215 hours of sunshine. This makes it a pleasant time to visit Trenton.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Trenton's climate page.

Trenton Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 27%  

Precipitation 89 mm (3.5 in)  

Rainy days 8 days  

Sunshine 215 hours  

Percentage Sunshine 57%  

What to Wear in Trenton in September

Warm but pleasant conditions in Trenton in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Trenton in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Trenton's climate page.

More climate data for Trenton

Temperature Rainfall Sunshine

See the full Trenton climate overview or explore weather in the United States of America.