Portsmouth weather in April

In April, Portsmouth sees average daytime highs of 66°F and overnight lows near 47°F, with 4.4 in of precipitation across 12.4 wet days and about 13 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 62°F in the first days to 69°F by the end. The sky is clear or mostly clear about 24% 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 36 min by month's end. Set against the rest of the year, April is Portsmouth's 7th-clearest and 1st-windiest month. For the whole year in context, see Portsmouth's year-round climate.

Daytime high
66°
7th warmest
Overnight low
47°
6th coldest
Precipitation
4.4 in
12.4 wet days
Daylight
13 hours
6:02 AM – 7:02 PM
Cloud cover
64%
7th clearest
Wind
7 mph
1st windiest
Solar energy
5.09 kWh/m²
Travel score
5.6
out of 10

Portsmouth is city in Scioto County, Ohio, United States.

Density
712/km²
people per km²
Founded
1803

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 62°F in the first days to 69°F by the end.

A typical April day in Portsmouth reaches about 66°F in the afternoon and slips back to 47°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 80°F. Set against its neighbours, April runs about 12°F warmer than March and about 8°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
16142
26142
36242
46243
56343
66344
76444
86444
96545
106545
116545
126646
136646
146646
156647
166747
176747
186748
196748
206748
216848
226849
236849
246849
256849
266949
276950
286950
296950
306951

How April really feels in Portsmouth

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Portsmouth weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 27°3.410.23.69.60.1
Feb45° / 29°3.410.13.710.50.8
Mar54° / 36°4.2121.711.73.1
Apr66° / 47°4.412.40.3135.6
May74° / 56°4.612.9014.16.2
Jun82° / 64°4.313.1014.75.6
Jul85° / 68°3.912.5014.44.9
Aug85° / 66°3.011.2013.55.3
Sep79° / 59°3.38.1012.37.0
Oct67° / 48°3.190.1116.3
Nov54° / 38°3.28.70.69.93.5
Dec45° / 31°3.6102.39.30.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% 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 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23961
33961
44060
54159
64159
74159
84258
94258
104258
114258
124258
134258
144258
154060
164060
174060
184060
194060
203961
213961
223961
233862
243862
253763
263763
273763
283763
293763
303862

Chance of precipitation in April

Any precipitationSnow

Portsmouth gets around 4.4 in of rain and snow over 12.4 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 42% and peaks near 44% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1433
2433
3422
4422
5422
6412
7412
8402
9402
10402
11401
12401
13401
14401
15401
16401
17411
18411
19410
20410
21420
22420
23430
24430
25430
26440
27440
28440
29440
30440

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
194510
293610
393610
493610
592710
691720
791720
890820
990820
1089920
1188930
12871030
13871030
14871030
15861130
16861130
17861130
18861130
19851230
20841240
21831340
22831340
23821440
24811450
25791551
26781561
27771661
28751771
29741781
30731881

Wind in April

Winds average 7 mph in April, the windiest month of the year.

Across April, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over April. Sunrise moves from 6:25 AM to 5:43 AM, and sunset from 6:48 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:256:48
212.46:246:49
312.56:226:50
412.56:216:51
512.56:196:52
612.66:176:53
712.66:166:54
812.76:146:55
912.76:136:56
1012.86:116:57
1112.86:106:58
1212.86:086:59
1312.96:067:00
1412.96:057:01
1513.06:037:01
1613.06:027:02
1713.06:007:03
1813.15:597:04
1913.15:587:05
2013.25:567:06
2113.25:557:07
2213.35:537:08
2313.35:527:09
2413.35:507:10
2513.45:497:11
2613.45:487:12
2713.45:467:13
2813.55:457:14
2913.55:447:15
3013.65:437:16

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.09 kWh/m².

For context, solar energy here swings from a low near 1.73 kWh/m² to a high of 6.11 kWh/m² in June across the year — April's 5.09 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in April

Hazard calendar for Portsmouth

In seasonPeak

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.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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).

5.6
Sightseeing
4th-best month of the year
2.3
Beach & pool
7th-best month of the year

April is a reasonable time to visit Portsmouth for sightseeing.

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 66°F and nights near 47°F. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

UV index in Portsmouth in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — 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 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 18UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Portsmouth in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Portsmouth is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (October, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1218 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May14Moderate
Jun17Moderate
Jul18Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Portsmouth?

Portsmouth sits at 38.7°N, 83.0°W, 531 ft above sea level, in United States. The nearest listed city is Ashland, 26 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 640 ft around an average of 620 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 817 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 925 ft.

The land around Portsmouth is covered by trees (42%) within 2 miles, trees (77%) within 10 miles, and trees (77%) within 50 miles.

2 miles
640 ft
10 miles
817 ft
50 miles
925 ft
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Ashland 26 mi · Meads 27 mi · Huntington 37 mi · Chillicothe 42 mi · Athens 63 mi · Lancaster 71 mi · Charleston 78 mi · Grove City 80 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 (38.7317°, -82.9977°, elevation 531 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). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).