Portsmouth, RI weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Portsmouth now
Loading the National Weather Service forecast…
Portsmouth weather by the hour
Portsmouth weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Portsmouth.
This week in Portsmouth
Sunrise, sunset and moon in Portsmouth
What is the weather usually like in Portsmouth?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 23°F average low
- 49.4 inprecipitation per year · 1,255 mm
- 38.1 insnowfall per year · 97 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Portsmouth: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station TIVERTON, RI US (USC00377581), adjusted for the elevation of Portsmouth.
Portsmouth weather month by month
Sunrise and sunset in Portsmouth through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:08 AM | 4:41 PM | 9 h 33 min |
| February | 6:38 AM | 5:20 PM | 10 h 41 min |
| March | 6:55 AM | 6:53 PM | 11 h 58 min |
| April | 6:03 AM | 7:27 PM | 13 h 23 min |
| May | 5:23 AM | 7:59 PM | 14 h 35 min |
| June | 5:08 AM | 8:23 PM | 15 h 14 min |
| July | 5:22 AM | 8:19 PM | 14 h 56 min |
| August | 5:52 AM | 7:46 PM | 13 h 54 min |
| September | 6:24 AM | 6:56 PM | 12 h 31 min |
| October | 6:56 AM | 6:05 PM | 11 h 9 min |
| November | 6:33 AM | 4:26 PM | 9 h 53 min |
| December | 7:03 AM | 4:17 PM | 9 h 13 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Portsmouth?
Portsmouth has a hot-summer humid continental climate. The warmest month is July, with an average high of 85°F (29°C), and the coldest is January, with average lows of 23°F (-5°C).
It gets about 49.4 inches (1,255 mm) of precipitation a year. The wettest month is March and the driest is July. Snow is common: about 38 inches fall in an average year.
The best time to visit Portsmouth is June to September. At 203 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Portsmouth
Weather in towns near Portsmouth
Questions about the weather in Portsmouth
What is the hottest month in Portsmouth?
July, with an average high of 85°F (29°C).
What is the coldest month in Portsmouth?
January, with an average low of 23°F (-5°C).
How much does it rain in Portsmouth?
About 49.4 inches (1,255 mm) a year; the wettest month is March.
Does it snow in Portsmouth?
Yes, about 38 inches of snow fall in an average year.
When is the best time to visit Portsmouth?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Portsmouth have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Portsmouth in November?
Highs average 52°F and lows 37°F, with about 4.1 inches of precipitation.
What time is sunrise in Portsmouth?
Around 6:33 AM in mid-November, and sunset around 4:26 PM. Today’s exact times are shown above.
Where does this Portsmouth weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Portsmouth.
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