Portsmouth weather in April
In April, Portsmouth sees average daytime highs of 49°F and overnight lows near 42°F, with 4.6 in of precipitation across 11.4 wet days and about 13.1 hours of daylight. It is the 8th-warmest and 4th-wettest month of the year here.
Highs climb over the month, from about 46°F in the first days to 52°F by the end. The sky is clear or mostly clear about 28% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 24 min at the start of April to 13 h 42 min by month's end. Set against the rest of the year, April is Portsmouth's 11th-clearest and 7th-windiest month. For the whole year in context, see Portsmouth's year-round climate.
- Daytime high
- 49°
- 8th warmest
- Overnight low
- 42°
- 5th coldest
- Precipitation
- 4.6 in
- 11.4 wet days
- Daylight
- 13 h 06 min
- 5:12 AM – 6:19 PM
- Cloud cover
- 62%
- 11th clearest
- Wind
- 12 mph
- 7th windiest
- Solar energy
- 5.05 kWh/m²
- Travel score
- 2.0
- out of 10
Portsmouth is town in Newport County, Rhode Island, USA.
- Founded
- 1638
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about 46°F in the first days to 52°F by the end.
A typical April day in Portsmouth reaches about 49°F in the afternoon and slips back to 42°F overnight — a 7°F spread between the day's warmth and the night's chill. On most days the high lands between 44°F and 55°F. Set against its neighbours, April runs about 7°F warmer than March and about 8°F cooler than May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 45 | 46 | 46 | 46 | 46 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 49 | 49 | 49 | 49 | 50 | 50 | 50 | 50 | 51 | 51 | 51 | 51 | 52 | 52 | 52 | 52 | 53 | 53 |
| Avg low (°F) | 38 | 38 | 39 | 39 | 39 | 40 | 40 | 40 | 40 | 41 | 41 | 41 | 42 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 46 | 46 | 46 | 46 | 47 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 45 | 38 |
| 2 | 46 | 38 |
| 3 | 46 | 39 |
| 4 | 46 | 39 |
| 5 | 46 | 39 |
| 6 | 47 | 40 |
| 7 | 47 | 40 |
| 8 | 47 | 40 |
| 9 | 47 | 40 |
| 10 | 48 | 41 |
| 11 | 48 | 41 |
| 12 | 48 | 41 |
| 13 | 49 | 42 |
| 14 | 49 | 42 |
| 15 | 49 | 42 |
| 16 | 49 | 43 |
| 17 | 50 | 43 |
| 18 | 50 | 43 |
| 19 | 50 | 44 |
| 20 | 50 | 44 |
| 21 | 51 | 44 |
| 22 | 51 | 44 |
| 23 | 51 | 45 |
| 24 | 51 | 45 |
| 25 | 52 | 45 |
| 26 | 52 | 46 |
| 27 | 52 | 46 |
| 28 | 52 | 46 |
| 29 | 53 | 46 |
| 30 | 53 | 47 |
How April really feels in Portsmouth
Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 5 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in April is cold — wind chill drags the overnight "feels like" below the raw low.
Portsmouth weather by month
How April compares with the rest of the year at a glance. April is the 8th-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 38° / 28° | 4.4 | 10.6 | 4.5 | 9.3 | 0.0 |
| Feb | 38° / 29° | 3.8 | 9.6 | 3.9 | 10.3 | 0.0 |
| Mar | 42° / 34° | 5.1 | 10.9 | 3.6 | 11.7 | 0.3 |
| Apr | 49° / 42° | 4.6 | 11.4 | 0.6 | 13.1 | 2.0 |
| May | 57° / 51° | 3.9 | 10.9 | 0 | 14.3 | 4.0 |
| Jun | 66° / 60° | 3.7 | 9.3 | 0 | 15 | 6.1 |
| Jul | 73° / 67° | 3.0 | 8.9 | 0 | 14.7 | 7.0 |
| Aug | 73° / 68° | 3.6 | 8.8 | 0 | 13.7 | 7.1 |
| Sep | 68° / 62° | 4.1 | 8.8 | 0 | 12.3 | 6.6 |
| Oct | 60° / 53° | 5.1 | 10 | 0.1 | 10.9 | 5.0 |
| Nov | 51° / 43° | 4.5 | 9.7 | 0.4 | 9.7 | 2.7 |
| Dec | 44° / 35° | 5.2 | 11.5 | 2.9 | 9 | 0.6 |
Cloud cover in April
The sky is clear or mostly clear about 28% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 57%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 44 | 44 |
| Cloudier (%) | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 58 | 57 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 56 | 56 | 56 | 57 | 57 | 56 | 56 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 41 | 59 |
| 2 | 41 | 59 |
| 3 | 41 | 59 |
| 4 | 41 | 59 |
| 5 | 41 | 59 |
| 6 | 41 | 59 |
| 7 | 41 | 59 |
| 8 | 42 | 58 |
| 9 | 42 | 58 |
| 10 | 42 | 58 |
| 11 | 42 | 58 |
| 12 | 43 | 57 |
| 13 | 43 | 57 |
| 14 | 43 | 57 |
| 15 | 43 | 57 |
| 16 | 44 | 56 |
| 17 | 44 | 56 |
| 18 | 44 | 56 |
| 19 | 44 | 56 |
| 20 | 45 | 55 |
| 21 | 45 | 55 |
| 22 | 45 | 55 |
| 23 | 45 | 55 |
| 24 | 44 | 56 |
| 25 | 44 | 56 |
| 26 | 44 | 56 |
| 27 | 43 | 57 |
| 28 | 43 | 57 |
| 29 | 44 | 56 |
| 30 | 44 | 56 |
Chance of precipitation in April
Portsmouth gets around 4.6 in of rain and snow over 11.4 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 38% and peaks near 39% on the wettest days, and about 1 day brings snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 38 | 38 | 38 | 38 | 39 | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 |
| Snow chance (%) | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 38 | 4 |
| 2 | 38 | 4 |
| 3 | 38 | 4 |
| 4 | 38 | 4 |
| 5 | 39 | 4 |
| 6 | 39 | 3 |
| 7 | 38 | 3 |
| 8 | 38 | 3 |
| 9 | 38 | 3 |
| 10 | 38 | 3 |
| 11 | 37 | 3 |
| 12 | 37 | 3 |
| 13 | 37 | 2 |
| 14 | 37 | 2 |
| 15 | 37 | 2 |
| 16 | 37 | 2 |
| 17 | 37 | 2 |
| 18 | 38 | 1 |
| 19 | 38 | 1 |
| 20 | 38 | 1 |
| 21 | 38 | 1 |
| 22 | 38 | 1 |
| 23 | 38 | 1 |
| 24 | 38 | 1 |
| 25 | 38 | 0 |
| 26 | 38 | 0 |
| 27 | 38 | 0 |
| 28 | 38 | 0 |
| 29 | 38 | 0 |
| 30 | 38 | 0 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 100 | 0 |
| 3 | 100 | 0 |
| 4 | 100 | 0 |
| 5 | 100 | 0 |
| 6 | 100 | 0 |
| 7 | 100 | 0 |
| 8 | 100 | 0 |
| 9 | 100 | 0 |
| 10 | 100 | 0 |
| 11 | 100 | 0 |
| 12 | 100 | 0 |
| 13 | 100 | 0 |
| 14 | 100 | 0 |
| 15 | 100 | 0 |
| 16 | 100 | 0 |
| 17 | 100 | 0 |
| 18 | 100 | 0 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 100 | 0 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 99 | 1 |
| 29 | 99 | 1 |
| 30 | 99 | 1 |
Wind in April
Winds average 12 mph in April.
Across April, daily wind ranges from about 12 mph on the calmest days to 13 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 13 | breezy |
| 2 | 13 | breezy |
| 3 | 13 | breezy |
| 4 | 13 | breezy |
| 5 | 13 | breezy |
| 6 | 12 | breezy |
| 7 | 12 | breezy |
| 8 | 12 | breezy |
| 9 | 12 | breezy |
| 10 | 12 | breezy |
| 11 | 12 | light breeze |
| 12 | 12 | light breeze |
| 13 | 12 | light breeze |
| 14 | 12 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | light breeze |
| 20 | 12 | light breeze |
| 21 | 12 | light breeze |
| 22 | 12 | light breeze |
| 23 | 12 | light breeze |
| 24 | 12 | light breeze |
| 25 | 12 | light breeze |
| 26 | 12 | light breeze |
| 27 | 12 | light breeze |
| 28 | 12 | light breeze |
| 29 | 12 | light breeze |
| 30 | 12 | light breeze |
Sunrise & sunset in April
Daylight runs from about 12 h 24 min at the start of April to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 78 minutes over April. Sunrise moves from 5:37 AM to 4:50 AM, and sunset from 6:02 PM to 6:34 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.4 | 12.5 | 12.5 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.9 | 12.9 | 13.0 | 13.0 | 13.1 | 13.1 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.5 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 |
| Sunrise (AM) | 5:37 | 5:35 | 5:34 | 5:32 | 5:30 | 5:28 | 5:27 | 5:25 | 5:23 | 5:22 | 5:20 | 5:18 | 5:17 | 5:15 | 5:13 | 5:12 | 5:10 | 5:08 | 5:07 | 5:05 | 5:04 | 5:02 | 5:01 | 4:59 | 4:58 | 4:56 | 4:55 | 4:53 | 4:52 | 4:50 |
| Sunset (PM) | 6:02 | 6:03 | 6:04 | 6:05 | 6:07 | 6:08 | 6:09 | 6:10 | 6:11 | 6:12 | 6:13 | 6:14 | 6:15 | 6:17 | 6:18 | 6:19 | 6:20 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:26 | 6:28 | 6:29 | 6:30 | 6:31 | 6:32 | 6:33 | 6:34 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.4 | 5:37 | 6:02 |
| 2 | 12.5 | 5:35 | 6:03 |
| 3 | 12.5 | 5:34 | 6:04 |
| 4 | 12.6 | 5:32 | 6:05 |
| 5 | 12.6 | 5:30 | 6:07 |
| 6 | 12.7 | 5:28 | 6:08 |
| 7 | 12.7 | 5:27 | 6:09 |
| 8 | 12.7 | 5:25 | 6:10 |
| 9 | 12.8 | 5:23 | 6:11 |
| 10 | 12.8 | 5:22 | 6:12 |
| 11 | 12.9 | 5:20 | 6:13 |
| 12 | 12.9 | 5:18 | 6:14 |
| 13 | 13.0 | 5:17 | 6:15 |
| 14 | 13.0 | 5:15 | 6:17 |
| 15 | 13.1 | 5:13 | 6:18 |
| 16 | 13.1 | 5:12 | 6:19 |
| 17 | 13.2 | 5:10 | 6:20 |
| 18 | 13.2 | 5:08 | 6:21 |
| 19 | 13.3 | 5:07 | 6:22 |
| 20 | 13.3 | 5:05 | 6:23 |
| 21 | 13.3 | 5:04 | 6:24 |
| 22 | 13.4 | 5:02 | 6:25 |
| 23 | 13.4 | 5:01 | 6:26 |
| 24 | 13.5 | 4:59 | 6:28 |
| 25 | 13.5 | 4:58 | 6:29 |
| 26 | 13.6 | 4:56 | 6:30 |
| 27 | 13.6 | 4:55 | 6:31 |
| 28 | 13.6 | 4:53 | 6:32 |
| 29 | 13.7 | 4:52 | 6:33 |
| 30 | 13.7 | 4:50 | 6:34 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 5.05 kWh/m².
For context, solar energy here swings from a low near 1.64 kWh/m² to a high of 6.12 kWh/m² in July across the year — April's 5.05 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.5 | Bright |
| 2 | 4.5 | Bright |
| 3 | 4.6 | Bright |
| 4 | 4.6 | Bright |
| 5 | 4.7 | Bright |
| 6 | 4.7 | Bright |
| 7 | 4.7 | Bright |
| 8 | 4.8 | Bright |
| 9 | 4.8 | Bright |
| 10 | 4.9 | Bright |
| 11 | 4.9 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.0 | Bright |
| 14 | 5.0 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.1 | Bright |
| 17 | 5.1 | Bright |
| 18 | 5.2 | Bright |
| 19 | 5.2 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.3 | Bright |
| 27 | 5.3 | Bright |
| 28 | 5.3 | Bright |
| 29 | 5.3 | Bright |
| 30 | 5.3 | Bright |
Hazard calendar for Portsmouth
None of Portsmouth's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Portsmouth sits in the Atlantic hurricane belt; the season peaks August–October.
Is April a good time to visit Portsmouth?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a weaker month for outdoor sightseeing in Portsmouth.
What to pack for Portsmouth in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Portsmouth sees daytime highs around 49°F and nights near 42°F. Pack a warm layer. Worth having: rain gear and sun protection. About 11 days see rain.
Sea temperature near Portsmouth in April
The nearest coast averages about 44°F in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 mi away) is warmest in August at about 69°F and coldest in February near 39°F.
It's comfortable for a long swim from Jul 26 to Aug 30 — about 1.2 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 43 | 39 | 40 | 44 | 51 | 60 | 67 | 69 | 67 | 61 | 55 | 49 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Cool | Cool | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 43 | Bracing |
| Feb | 39 | Bracing |
| Mar | 40 | Bracing |
| Apr | 44 | Bracing |
| May | 51 | Bracing |
| Jun | 60 | Cool |
| Jul | 67 | Cool |
| Aug | 69 | Refreshing |
| Sep | 67 | Cool |
| Oct | 61 | Cool |
| Nov | 55 | Bracing |
| Dec | 49 | Bracing |
UV index in Portsmouth in April
Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Portsmouth peaks around June 23 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 4 | 5 | 7 | 8 | 8 | 5 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | High | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 5 | High |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Where is Portsmouth?
Portsmouth sits at 41.6°N, 71.3°W, 141 ft above sea level, in United States. The nearest listed city is Middletown, 4.3 mi away.
Topography around Portsmouth
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Portsmouth.
Within 2 miles, the terrain around Portsmouth has only modest variations in elevation — a maximum elevation change of 292 ft around an average of 66 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 358 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,181 ft.
The land around Portsmouth is covered by water (44%), trees (27%) and grassland (20%) within 2 miles, water (44%) and trees (36%) within 10 miles, and trees (50%) and water (43%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Portsmouth (41.6023°, -71.2503°, elevation 141 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).