Kalmar weather in April

In April, Kalmar sees average daytime highs of 10°C and overnight lows near 2°C, with 28 mm of precipitation across 7.2 wet days and about 13.9 hours of daylight. It is the 7th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 8°C in the first days to 12°C 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 42 min at the start of April to 15 hours by month's end. Set against the rest of the year, April is Kalmar's 2nd-clearest and 8th-windiest month. For the whole year in context, see Kalmar's year-round climate.

Daytime high
10°
7th warmest
Overnight low
5th coldest
Precipitation
28 mm
7.2 wet days
Daylight
13 h 54 min
4:57 AM – 6:53 PM
Cloud cover
59%
2nd clearest
Wind
14 km/h
8th windiest
Solar energy
4.29 kWh/m²
Travel score
2.3
out of 10

Kalmar is city in Kalmar Municipality, Sweden.

Founded
1100

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 8°C in the first days to 12°C by the end.

A typical April day in Kalmar reaches about 10°C in the afternoon and slips back to 2°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 14°C. Set against its neighbours, April runs about 4°C warmer than March and about 5°C cooler than May.

-5°10°15°20°151015202530
Avg high (°C)Avg low (°C)
181
281
381
481
581
681
781
891
991
1091
1192
1292
1392
1492
15102
16102
17102
18102
19102
20103
21113
22113
23113
24113
25113
26123
27124
28124
29124
30124

How April really feels in Kalmar

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 25 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
25
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Kalmar weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°369.25.37.20.0
Feb / -2°348.46.39.10.0
Mar / -1°297.6311.40.3
Apr10° / 287.2113.92.3
May15° / 459.7016.14.5
Jun19° / 11°5310.4017.45.9
Jul21° / 13°6610.3016.96.5
Aug21° / 13°5910.6014.96.3
Sep17° / 10°458.9012.55.3
Oct11° / 509.60.1102.8
Nov / 5211.11.87.80.6
Dec / -0°4410.146.60.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24258
34258
44258
54258
64258
74159
84258
94258
104258
114258
124357
134456
144555
154654
164654
174753
184852
194852
204852
214852
224852
234852
244852
254753
264753
274753
284753
294753
304753

Chance of precipitation in April

Any precipitationSnow

Kalmar gets around 28 mm of rain and snow over 7.2 wet days in April, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 24% and peaks near 28% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%151015202530
Rain chance (%)Snow chance (%)
1235
2235
3245
4245
5245
6245
7255
8255
9255
10255
11255
12255
13245
14245
15244
16234
17234
18234
19233
20233
21233
22232
23242
24242
25241
26251
27251
28261
29271
30280

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in April

Winds average 14 km/h in April.

Across April, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 42 min at the start of April to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 138 minutes over April. Sunrise moves from 5:38 AM to 4:22 AM, and sunset from 6:21 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:386:21
212.85:356:23
312.95:326:25
413.05:296:27
513.05:276:29
613.15:246:31
713.25:216:33
813.35:196:36
913.45:166:38
1013.45:136:40
1113.55:106:42
1213.65:086:44
1313.75:056:46
1413.85:026:48
1513.85:006:50
1613.94:576:53
1714.04:546:55
1814.14:526:57
1914.24:496:59
2014.24:477:01
2114.34:447:03
2214.44:417:05
2314.54:397:07
2414.64:367:10
2514.64:347:12
2614.74:317:14
2714.84:297:16
2814.94:267:18
2914.94:247:20
3015.04:227:22

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.29 kWh/m².

For context, solar energy here swings from a low near 0.31 kWh/m² to a high of 5.88 kWh/m² in June across the year — April's 4.29 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.6Moderate
43.6Moderate
53.7Moderate
63.8Moderate
73.8Moderate
83.9Moderate
93.9Moderate
104.0Moderate
114.0Bright
124.1Bright
134.1Bright
144.2Bright
154.3Bright
164.3Bright
174.4Bright
184.4Bright
194.5Bright
204.5Bright
214.6Bright
224.7Bright
234.7Bright
244.8Bright
254.8Bright
264.8Bright
274.9Bright
284.9Bright
295.0Bright
305.0Bright
Planning a trip in April

Is April a good time to visit Kalmar?

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

2.3
Sightseeing
7th-best month of the year
0.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Kalmar.

What to pack for Kalmar in April

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

In April, Kalmar sees daytime highs around 10°C and nights near 2°C. Pack a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Kalmar in April

The nearest coast averages about 4°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 18°C and coldest in February near 3°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan3Bracing
Feb3Bracing
Mar3Bracing
Apr4Bracing
May8Bracing
Jun13Bracing
Jul16Cool
Aug18Cool
Sep15Bracing
Oct11Bracing
Nov8Bracing
Dec5Bracing

UV index in Kalmar in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kalmar peaks around June 18 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 20 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 18UV 5Dec 20UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May5Moderate
Jun6High
Jul5Moderate
Aug5Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low
Location & terrain

Where is Kalmar?

Kalmar sits at 56.7°N, 16.4°E, 7 m above sea level, in Sweden. The nearest listed city is Oskarshamn, 67 km away.

KarlshamnVästervikLjungbyNässjöVärnamo

Topography around Kalmar

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kalmar.

Within 3 km, the terrain around Kalmar has only modest variations in elevation — a maximum elevation change of 22 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 67 m; within 80 km, significant variations in elevation — a maximum elevation change of 306 m.

The land around Kalmar is covered by water (59%) and artificial surfaces (20%) within 3 km, water (34%), trees (26%) and grassland (22%) within 16 km, and trees (48%) and water (40%) within 80 km.

3 km
22 m
16 km
67 m
80 km
306 m
treesgrasslandcroplandartificial surfaceswaterwetland
April weather nearby: Oskarshamn 67 km · Karlskrona 73 km · Växjö 98 km · Karlshamn 107 km · Västervik 123 km · Ljungby 149 km · Nässjö 149 km · Värnamo 152 km

Sweden travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 87% of US
price level, 2025
GDP per capita
$63,133
2025
Happiness
7.3 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
3.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 609
Religion
Church of Sweden 54%none or unspecified 37%other 9%

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 Kalmar (56.6616°, 16.3616°, elevation 7 m), 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. 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).