Annapolis weather in April

In April, Annapolis sees average daytime highs of 61°F and overnight lows near 49°F, with 3.7 in of precipitation across 10.2 wet days and about 13 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 57°F in the first days to 65°F by the end. The sky is clear or mostly clear about 29% 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 Annapolis's 8th-clearest and 6th-windiest month. For the whole year in context, see Annapolis's year-round climate.

Daytime high
61°
7th warmest
Overnight low
49°
6th coldest
Precipitation
3.7 in
10.2 wet days
Daylight
13 hours
5:36 AM – 6:37 PM
Cloud cover
59%
8th clearest
Wind
9 mph
6th windiest
Solar energy
5.2 kWh/m²
Travel score
5.1
out of 10

Annapolis is capital city of the U.S. state of Maryland and seat of Anne Arundel County.

Density
1,944/km²
people per km²
Founded
1649

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 57°F in the first days to 65°F by the end.

A typical April day in Annapolis reaches about 61°F in the afternoon and slips back to 49°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 71°F. Set against its neighbours, April runs about 11°F warmer than March and about 9°F cooler than May.

30°40°50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
15644
25744
35744
45745
55845
65845
75946
85946
95946
106047
116047
126047
136148
146148
156249
166249
176249
186250
196350
206350
216351
226451
236451
246451
256452
266552
276552
286553
296553
306553

How April really feels in Annapolis

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.

Annapolis weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 31°3.592.79.60.1
Feb43° / 32°3.392.810.50.6
Mar51° / 38°4.410.91.611.72.4
Apr61° / 49°3.710.20.1135.1
May70° / 58°3.810.8014.16.4
Jun79° / 68°3.610.8014.76.4
Jul84° / 73°4.211.7014.55.4
Aug82° / 72°4.010.2013.56.1
Sep76° / 66°4.69.2012.37.0
Oct66° / 55°3.98.20116.3
Nov55° / 44°3.38.10.19.93.7
Dec46° / 36°4.19.51.39.31.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24654
34654
44654
54753
64852
74852
84852
94852
104951
114951
124852
134852
144852
154753
164753
174654
184654
194753
204654
214654
224555
234555
244555
254555
264555
274555
284654
294654
304654

Chance of precipitation in April

Any precipitationSnow

Annapolis gets around 3.7 in of rain and snow over 10.2 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 34% and peaks near 38% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1382
2382
3371
4371
5371
6361
7351
8351
9341
10331
11331
12330
13320
14320
15330
16330
17330
18330
19330
20330
21330
22330
23330
24330
25330
26330
27340
28340
29340
30330

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 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
198200
298200
398200
498200
597300
697300
796400
896400
994510
1094510
1193610
1292710
1392710
1491810
1591810
1690910
17891010
18881020
19871120
20871120
21871120
22851230
23851230
24841330
25821440
26821440
27811540
28791650
29781750
30761761

Wind in April

Winds average 9 mph in April.

Across April, daily wind ranges from about 9 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze

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 5:59 AM to 5:16 AM, and sunset from 6:22 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:596:22
212.45:586:23
312.55:566:24
412.55:546:25
512.65:536:26
612.65:516:27
712.65:506:28
812.75:486:29
912.75:466:30
1012.85:456:31
1112.85:436:32
1212.95:426:33
1312.95:406:34
1412.95:396:35
1513.05:376:36
1613.05:366:37
1713.15:346:38
1813.15:336:39
1913.15:316:40
2013.25:306:41
2113.25:286:42
2213.35:276:43
2313.35:256:44
2413.35:246:45
2513.45:236:46
2613.45:216:47
2713.55:206:48
2813.55:196:49
2913.55:176:50
3013.65:166:51

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.2 kWh/m².

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 6.1 kWh/m² in June across the year — April's 5.2 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.8Bright
44.8Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Annapolis

In seasonPeak

None of Annapolis's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Annapolis 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 Annapolis?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.1
Sightseeing
7th-best month of the year
1.0
Beach & pool
7th-best month of the year

April is a reasonable time to visit Annapolis for sightseeing.

What to pack for Annapolis in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Annapolis sees daytime highs around 61°F and nights near 49°F. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Annapolis in April

The nearest coast averages about 47°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 9 mi away) is warmest in August at about 78°F and coldest in February near 37°F.

It's comfortable for a long swim from Jun 16 to Oct 6 — about 3.7 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan38Bracing
Feb37Bracing
Mar40Bracing
Apr47Bracing
May58Bracing
Jun68Refreshing
Jul76Warm
Aug78Warm
Sep74Refreshing
Oct65Cool
Nov54Bracing
Dec45Bracing

UV index in Annapolis 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 Annapolis peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 9Dec 19UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Annapolis 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 Annapolis is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1216 µg/m³Nov 118 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar13Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep12Good
Oct9Good
Nov8Good
Dec10Good
Location & terrain

Where is Annapolis?

Annapolis sits at 39.0°N, 76.5°W, 39 ft above sea level, in United States. The nearest listed city is Parole, 3.1 mi away.

Topography around Annapolis

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Annapolis.

Within 2 miles, the terrain around Annapolis has only modest variations in elevation — a maximum elevation change of 187 ft around an average of 39 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 322 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,227 ft.

The land around Annapolis is covered by trees (42%), water (29%) and artificial surfaces (22%) within 2 miles, trees (45%) and water (43%) within 10 miles, and trees (53%) within 50 miles.

2 miles
187 ft
10 miles
322 ft
50 miles
1,227 ft
treesgrasslandcroplandartificial surfaceswaterwetland
April weather nearby: Parole 3.1 mi · Arnold 3.7 mi · Severna Park 6.8 mi · Lake Shore 8.7 mi · Pasadena 11 mi · Crofton 11 mi · Green Haven 12 mi · South Gate 12 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 Annapolis (38.9786°, -76.4918°, elevation 39 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. 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).