Temperature in New Hampshire in August

Daytime highs, nighttime lows and the warmest cities in New Hampshire, the United States of America this August.

New Hampshire, the United States of America, a region in the United States of America, experiences high average maximum daytime temperatures in August, ranging from 23°C (73°F) in Waterville Valley to 28°C (82°F) in Nashua. Nighttime temperatures generally drop to 16°C (61°F) in Nashua and 11°C (52°F) in Waterville Valley. In August, it is summer.

What is the temperature of the different cities in New Hampshire, the United States of America in August?

Explore the map below to discover average August temperatures at the top destinations in New Hampshire. For a deeper dive, simply click on any destination dot.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit New Hampshire, check out our New Hampshire's climate page.

See also: New Hampshire weather by month.

Best Places to Visit in New Hampshire in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across New Hampshire.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

See all August weather averages, cities and regions in New Hampshire

New Hampshire temperatures in August: frequently asked questions

How hot does it get in New Hampshire, the United States of America in August?

Expect daytime temperatures around 26°C (79°F) in Portsmouth. That makes August a high month for New Hampshire, the United States of America.

How cold does it get at night in New Hampshire, the United States of America in August?

Average overnight lows in New Hampshire, the United States of America during August sit near 16°C (61°F) in Portsmouth.

What is the warmest city in August in New Hampshire, the United States of America?

Based on our systematic data collection, Nashua has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 28°C (82°F), while at night it goes down to an approximate temperature of 16°C (61°F).

What is the coldest city in August in New Hampshire, the United States of America?

According to our data, Waterville Valley holds the title for the coldest city in New Hampshire, the United States of America in August. It experiences maximum temperatures of approximately 23°C (73°F) and drops to lows of about 11°C (52°F) during the night.

How much sun does New Hampshire, the United States of America get in August?

Portsmouth enjoys approximately 261 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

Interested in more climate information?

We have much more information about the climate in New Hampshire.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

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