Caldwell
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Caldwell Weather in September

During September, Caldwell experiences high daytime temperatures of 25°C (77°F) and cooler nights around 12°C (54°F). Expect quite a bit of rainfall. Around 90 mm (3.5 in) is typical.

Rainfall in Caldwell in September

Analyzing past climate data, one can expect approximately 11 days of rain, averaging 90 mm (3.5 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Caldwell in September

The excellent temperature in Caldwell in September makes it a solid month to visit, with 25°C (77°F) during the day and 12°C (54°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 12°C (54°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, August and September typically offer the best circumstances for Caldwell.

Caldwell Temperature in September

Min Temperature
12°C (54°F)
Max Temperature
25°C (77°F)
Chance of Rain
37%
Precipitation
90 mm (3.5 in)
Rainy days
11 days

Caldwell Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Caldwell - and find the best time to visit.

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 →

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 Caldwell 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 Caldwell 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

Caldwell 3-Day Forecast

More climate data for Caldwell

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.