Rijeka weather in April

In April, Rijeka sees average daytime highs of 14°C and overnight lows near 8°C, with 114 mm of precipitation across 13 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 16°C by the end. The sky is clear or mostly clear about 31% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 14 hours by month's end. Set against the rest of the year, April is Rijeka's 8th-clearest and 8th-windiest month. For the whole year in context, see Rijeka's year-round climate.

Daytime high
14°
7th warmest
Overnight low
6th coldest
Precipitation
114 mm
13 wet days
Daylight
13 h 18 min
5:24 AM – 6:41 PM
Cloud cover
59%
8th clearest
Wind
9 km/h
8th windiest
Solar energy
4.78 kWh/m²
Travel score
3.8
out of 10
Air quality
Moderate
PM2.5 10.6 µg/m³ · 2019

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 12°C in the first days to 16°C by the end.

A typical April day in Rijeka reaches about 14°C in the afternoon and slips back to 8°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 19°C. Set against its neighbours, April runs about 4°C warmer than March and about 5°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1126
2126
3126
4126
5136
6136
7136
8136
9137
10137
11137
12137
13147
14147
15147
16147
17148
18148
19148
20158
21158
22158
23159
24159
25169
26169
27169
281610
291610
301610

How April really feels in Rijeka

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 0 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
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.

Rijeka weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 12311.54.28.90.2
Feb / 12810.74.710.10.7
Mar10° / 12311.63.211.62.3
Apr14° / 114130.913.23.8
May19° / 12°12013.70.114.65.5
Jun23° / 16°9412015.46.7
Jul25° / 18°7710015.17.2
Aug25° / 18°908.8013.97.3
Sep20° / 14°17711.8012.36.2
Oct16° / 10°20813.40.510.74.5
Nov11° / 22314.429.32.2
Dec / 16912.248.60.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24753
34753
44852
54753
64852
74753
84753
94654
104654
114654
124654
134654
144654
154654
164654
174654
184753
194753
204753
214852
224753
234753
244753
254852
264852
274852
284951
294852
304852

Chance of precipitation in April

Any precipitationSnow

Rijeka gets around 114 mm of rain and snow over 13 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 44% and peaks near 46% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1426
2426
3425
4435
5435
6444
7444
8454
9454
10464
11464
12464
13464
14464
15464
16463
17453
18453
19443
20433
21432
22432
23422
24422
25421
26431
27431
28431
29431
30441

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 (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
24991
25991
26991
27991
28982
29982
30973

Wind in April

Winds average 9 km/h in April.

Across April, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over April. Sunrise moves from 5:53 AM to 5:00 AM, and sunset from 6:21 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:536:21
212.55:516:22
312.65:496:24
412.65:476:25
512.75:456:26
612.75:436:28
712.85:416:29
812.95:396:30
912.95:376:32
1013.05:356:33
1113.05:336:34
1213.15:326:35
1313.15:306:37
1413.25:286:38
1513.25:266:39
1613.35:246:41
1713.35:226:42
1813.45:216:43
1913.45:196:45
2013.55:176:46
2113.55:156:47
2213.65:146:48
2313.65:126:50
2413.75:106:51
2513.75:086:52
2613.85:076:54
2713.85:056:55
2813.95:046:56
2913.95:026:58
3014.05:006:59

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.78 kWh/m².

For context, solar energy here swings from a low near 1.16 kWh/m² to a high of 6.3 kWh/m² in July across the year — April's 4.78 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.3Bright
34.3Bright
44.4Bright
54.4Bright
64.4Bright
74.5Bright
84.5Bright
94.5Bright
104.6Bright
114.6Bright
124.7Bright
134.7Bright
144.7Bright
154.8Bright
164.8Bright
174.8Bright
184.9Bright
194.9Bright
204.9Bright
215.0Bright
225.0Bright
235.0Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in April

Is April a good time to visit Rijeka?

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

3.8
Sightseeing
7th-best month of the year
0.2
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Rijeka.

What to pack for Rijeka in April

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

In April, Rijeka sees daytime highs around 14°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 13 days see rain.

a warm layerrain gearsun protection

Sea temperature near Rijeka in April

The nearest coast averages about 12°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 23°C and coldest in February near 10°C.

It's comfortable for a long swim from Jun 10 to Sep 22 — about 3.5 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb10Bracing
Mar10Bracing
Apr12Bracing
May17Cool
Jun21Refreshing
Jul23Refreshing
Aug23Refreshing
Sep21Refreshing
Oct18Cool
Nov15Cool
Dec12Bracing

UV index in Rijeka in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rijeka peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowJul 17UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar5Moderate
Apr7High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Rijeka?

Rijeka sits at 45.3°N, 14.4°E, 12 m above sea level, in Croatia. The nearest listed city is Cres, 41 km away.

CresPostojnaDivačaKoperTriesteRovinjPulaPiran

Topography around Rijeka

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

Within 3 km, the terrain around Rijeka has significant variations in elevation — a maximum elevation change of 379 m around an average of 77 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,375 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,767 m.

The land around Rijeka is covered by water (44%), trees (29%) and artificial surfaces (25%) within 3 km, trees (51%) and water (38%) within 16 km, and trees (62%) and water (24%) within 80 km.

3 km
379 m
16 km
1,375 m
80 km
1,767 m
treesshrubsgrasslandcroplandartificial surfaceswater
April weather nearby: Cres 41 km · Postojna 53 km · Divača 54 km · Koper 61 km · Trieste 63 km · Rovinj 69 km · Pula 69 km · Piran 72 km

Croatia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 53% of US
price level, 2025
GDP per capita
$27,104
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
87%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
7.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 617
Religion
Roman Catholic 79%other Christian 5%none or atheist 5%Orthodox 3%

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 Rijeka (45.3267°, 14.4424°, elevation 12 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).