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Hamilton Weather in September

During September, Hamilton experiences very high daytime temperatures of 32°C (90°F) and cooler nights around 18°C (64°F). Expect quite a bit of rainfall. Around 75 mm (3 in) is typical.

Rainfall in Hamilton in September

You can expect rain on roughly 6 days based on historical data, averaging 75 mm (3 in) for the month. The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.

Temperature in Hamilton in September

In September, Hamilton gets very high temperatures, with highs of 32°C (90°F). Nights cool to around 18°C (64°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights cool down to 18°C (64°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 your ideal day consists of dry skies and pleasant temperatures, March, April, October and November typically offer the best circumstances for Hamilton.

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Check the conditions for any month of the year.

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

Hamilton Temperature in September

Min TemperatureMin Temperature 18°C (64°F)  
Max TemperatureMax Temperature 32°C (90°F)  
Chance of RainChance of Rain 20%  
PrecipitationPrecipitation 75 mm (3 in)  
Rainy daysRainy days 6 days  

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Hamilton 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. Rain gear is recommended, you can expect wet weather on multiple days.

What To Do in Hamilton in September

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

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.

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

More climate data for Hamilton