Rijeka weather in October

In October, Rijeka sees average daytime highs of 16°C and overnight lows near 10°C, with 208 mm of precipitation across 13.4 wet days and about 10.7 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 14°C by the end. The sky is clear or mostly clear about 32% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 10 hours by month's end. Set against the rest of the year, October is Rijeka's 7th-clearest and 6th-windiest month. For the whole year in context, see Rijeka's year-round climate.

Daytime high
16°
6th warmest
Overnight low
10°
7th coldest
Precipitation
208 mm
13.4 wet days
Daylight
10 h 42 min
6:26 AM – 5:08 PM
Cloud cover
59%
7th clearest
Wind
10 km/h
6th windiest
Solar energy
2.51 kWh/m²
Travel score
4.5
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 October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 14°C by the end.

A typical October day in Rijeka reaches about 16°C in the afternoon and slips back to 10°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 19°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11812
21812
31812
41712
51711
61711
71711
81711
91711
101711
111610
121610
131610
141610
151610
161610
171510
18159
19159
20159
21159
22159
23159
24149
25149
26149
27148
28148
29148
30148
31148

How October really feels in Rijeka

Once humidity and wind are folded in, October 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

October 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 October compares with the rest of the year at a glance. October is the 6th-warmest and 2nd-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24753
34753
44753
54852
64753
74753
84852
94852
104852
114852
124852
134951
144951
154852
164852
174852
184852
194753
204753
214753
224555
234654
244555
254456
264456
274357
284258
294258
304258
314060

Chance of precipitation in October

Any precipitationSnow

Rijeka gets around 208 mm of rain and snow over 13.4 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 43% and peaks near 45% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1450
2450
3450
4450
5450
6440
7440
8430
9430
10420
11411
12411
13401
14401
15401
16402
17402
18412
19412
20412
21423
22423
23423
24433
25433
26433
27432
28432
29442
30442
31442

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
165296
266286
367285
468275
568275
670264
771254
873234
975223
1077203
1178193
1280182
1382162
1483152
1583152
1684142
1785141
1886131
1986131
2086131
2186131
2286131
2386131
2487121
2587121
2687121
2787121
2888111
2988111
3090100
319190

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over October. Sunrise moves from 6:06 AM to 6:47 AM, and sunset from 5:36 PM to 4:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:065:36
211.46:085:34
311.46:095:32
411.36:105:30
511.36:125:28
611.26:135:27
711.26:145:25
811.16:155:23
911.16:175:21
1011.06:185:19
1111.06:195:17
1210.96:215:15
1310.96:225:14
1410.86:245:12
1510.86:255:10
1610.76:265:08
1710.66:285:07
1810.66:295:05
1910.56:305:03
2010.56:325:01
2110.46:335:00
2210.46:354:58
2310.36:364:57
2410.36:374:55
2510.26:394:53
2610.26:404:52
2710.16:424:50
2810.16:434:49
2910.06:444:47
3010.06:464:46
3110.06:474:44

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.51 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 — October's 2.51 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.0Moderate
43.0Moderate
52.9Moderate
62.9Moderate
72.9Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.7Moderate
122.7Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.4Moderate
202.4Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.2Moderate
252.2Moderate
262.1Moderate
272.1Moderate
282.1Moderate
292.0Moderate
302.0Moderate
312.0Dim
Planning a trip in October

Is October a good time to visit Rijeka?

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

4.5
Sightseeing
6th-best month of the year
0.6
Beach & pool
6th-best month of the year

October is a reasonable time to visit Rijeka for sightseeing.

What to pack for Rijeka in October

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

In October, Rijeka sees daytime highs around 16°C and nights near 10°C. Worth packing: a warm layer and rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Rijeka in October

The nearest coast averages about 18°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 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
October 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).