Hannibal Weather in September

September in Hannibal sees daytime temperatures around 26°C (79°F) and lows of 14°C (57°F) at night. With around 104 mm (4.1 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Hannibal in September

Based on our climate data of the past 30 years, about 8 days of rain are anticipated, with 104 mm (4.1 in) on average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Hannibal in September

September in Hannibal brings high temperatures, with highs of 26°C (79°F) and nights around 14°C (57°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Hannibal.

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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 Hannibal's climate page.

Hannibal Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 27%  

Precipitation 104 mm (4.1 in)  

Rainy days 8 days  

What to Wear in Hannibal in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Hannibal in September

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

Cycling

7/10

Walking

7/10

Camping

6/10

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 Hannibal's climate page.

More climate data for Hannibal

Temperature Rainfall

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