The weather in September in Baltimore

It's hot in September in Baltimore with an average temperature of 33°C. Temperatures this month range from a low of 31°C to a high of 36°C. At night, you can expect temperatures between 20°C and 23°C.

Looking for sun? September isn’t a good month to be in Baltimore. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Baltimore, Peru. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 41°C in 2018, Baltimore reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 17°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 26°C.

Rainfall amount

In September, there is an average of 101 mm of precipitation, spread over 14 days. The wind speed is around 3 Bft, mostly coming from the Southwest.

Daily weather in September for Baltimore

Click on any day in September to get detailed info about the usual weather on that day in Baltimore. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Baltimore New York
Average temperature 33°C 27°C
Max. temperature 36°C 31°C
Min. temperature 20°C -5°C
Total precipitation 101 mm 57 mm
Rainy days 14 days 9 days

Start of September

The month of September starts in Baltimore with hot temps, averaging around 34°C during the day and nights around 21°C.

Mid September

By mid-September, daytime temps stay steady at around 34°C, with nights around 22°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of September

By the end of September, the average daytime temperature in Baltimore is around 34°C, while nighttime temps are about 23°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Baltimore for all months and discover the best travel time

Curious about the weather in other parts of Peru? Check out the climate and weather for spots like Lima, Cusco, Machu Picchu, or explore other destinations in Peru.

Temperature charts

These charts show the average temperatures in September in Baltimore, Peru. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Baltimore

Temperature in September in Baltimore over the years

Precipitation charts

These charts show the average amount of precipitation in September in Baltimore, Peru. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Baltimore

Total precipitation in September in Baltimore over the years

Daily UV index in September in Baltimore

This chart shows the average daily UV index in September in Baltimore, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Baltimore

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Average weather in Baltimore by month

Click on a month below to see detailed weather info for Baltimore. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.