Early summer · Weather & things to do
Portsmouth in June
Portsmouth warms up: highs climb to 67°F (19°C), from 58°F in May, with lows of 57°F (14°C) and about 4.6 in (116 mm) of rain.
It scores 80/100 for comfort, 2nd of 12, which makes it a solid shoulder-season month.
- Avg high
- 67°F (19°C)
- Avg low
- 57°F (14°C)
- Rain
- 4.6 in (116 mm)
- Humidity
- 85%
- Cloud cover
- 62%
- Daylight
- ~15 h 10 min
- Comfort score
- 80/100 · Great
What June feels like
Highs near 67°F (19°C) make for comfortable sightseeing weather.
Lows average 57°F (14°C).
Some rain is likely, about 4.6 in (116 mm) in the month, so pack for a shower or two.
Long days help: there are roughly 15 h 10 min of daylight mid-month.
Plan around June
June is shoulder season: good weather, a step below the best months (September).
- Longest days of the year, about 15 h 10 min of daylight.
- Comfort improves from 70/100 in May to 80/100.
- June sits inside the May – Oct window our Boston to Portland route recommends.
What to pack for June
- A warm layer for eveningslows near 57°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Portsmouth in June
June is good outdoor weather here, so these picks lean toward the open air.
Prescott Park
Waterfront gardens across from Strawbery Banke with harbor views.
Why now Our curated notes say it's best summer.
Portsmouth Harbor Cruises
Narrated harbor and Isles of Shoals cruises from Ceres Street dock.
Why now June scores 80/100 for comfort, good conditions for being outside.
Odiorne Point State Park
Rocky shoreline trails and tide pools, plus the Seacoast Science Center.
Why now Highs near 67°F and 4.6 in of monthly rain make this an easy outdoor pick.
Strawbery Banke Museum
Ten acres of restored houses spanning 300 years of a waterfront neighborhood.
Why now Our curated notes say it's best May–Oct.
Moxy
Chef Matt Louis's American tapas using New England ingredients.
Nearby in June
- New Hampshire in June~42 mi · highs 76°F, 4.5 in rain · 5°C (9°F) warmer by day, about as wet
- Portland, Maine in June~48 mi · highs 62°F, 5.0 in rain · 3°C (5°F) cooler by day, about as wet
- Boston in June~51 mi · highs 75°F, 4.4 in rain · 5°C (8°F) warmer by day, about as wet
- White Mountains in June~87 mi · highs 53°F, 5.2 in rain · 8°C (14°F) cooler by day, wetter
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Portsmouth in June: quick answers
Is June a good time to visit Portsmouth?
It's a good shoulder-season choice, scoring 80/100 against a best of 88 in September. Expect highs of 67°F (19°C) and 4.6 in (116 mm) of rain. June is inside the May – Oct window our Boston to Portland route recommends.
How hot is Portsmouth in June?
Average highs are 67°F (19°C) and average lows 57°F (14°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Portsmouth in June?
Some: about 4.6 in (116 mm) of rain falls across June on average, the 5th-wettest month of the year. The annual total is about 52.6 in (1337 mm).
What should I pack for Portsmouth in June?
Bring a warm layer for evenings (lows near 57°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
Routes in season in June
- Boston to Portland May – Oct
Planning Portsmouth in June?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.