Ruhnu weather in October

In October, Ruhnu sees average daytime highs of 10°C and overnight lows near 9°C, with 84 mm of precipitation across 14.9 wet days and about 10 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 13°C in the first days to 8°C by the end. The sky is clear or mostly clear about 15% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of October to 8 h 42 min by month's end. Set against the rest of the year, October is Ruhnu's 8th-clearest and 4th-windiest month. For the whole year in context, see Ruhnu's year-round climate.

Daytime high
10°
5th warmest
Overnight low
8th coldest
Precipitation
84 mm
14.9 wet days
Daylight
9 h 54 min
7:14 AM – 5:10 PM
Cloud cover
71%
8th clearest
Wind
29 km/h
4th windiest
Solar energy
1.4 kWh/m²
Travel score
2.1
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 13°C in the first days to 8°C by the end.

A typical October day in Ruhnu reaches about 10°C in the afternoon and slips back to 9°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 13°C. Set against its neighbours, October runs about 5°C cooler than September and about 4°C warmer than November.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11311
21311
31311
41211
51210
61210
71210
81210
91110
101110
11119
12119
13119
14119
15109
16108
17108
18108
19108
20108
2198
2297
2397
2497
2597
2697
2797
2897
2997
3086
3186

How October really feels in Ruhnu

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.

Ruhnu weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°4511.98.470.0
Feb-0° / -3°379.778.90.0
Mar / -1°338.34.511.40.0
Apr / 337.41.3140.2
May10° / 347.1016.32.4
Jun15° / 13°579.6017.74.8
Jul19° / 17°609.2017.16.4
Aug19° / 17°7912015.16.0
Sep15° / 14°6611.7012.54.5
Oct10° / 8414.90.2102.1
Nov / 6914.12.37.60.5
Dec / 5613.56.76.30.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 17% of October, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33763
43664
53565
63466
73565
83466
93466
103466
113367
123367
133367
143367
153268
163169
173169
183169
193169
203070
213070
223070
233070
242971
252971
262872
272872
282773
292773
302773
312773

Chance of precipitation in October

Any precipitationSnow

Ruhnu gets around 84 mm of rain and snow over 14.9 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 47% and peaks near 49% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1440
2450
3460
4470
5470
6480
7480
8490
9490
10490
11490
12480
13480
14470
15470
16461
17461
18461
19461
20461
21461
22462
23472
24472
25472
26483
27483
28483
29484
30494
31494

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1946
2946
3955
4964
5964
6973
7982
8982
9991
10991
11991
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in October

Winds average 29 km/h in October.

Across October, daily wind ranges from about 28 km/h on the calmest days to 30 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
128breezy
228breezy
328breezy
428breezy
528breezy
628breezy
728breezy
828breezy
928breezy
1028breezy
1128breezy
1228breezy
1329breezy
1429breezy
1529breezy
1629breezy
1729breezy
1829breezy
1929windy
2029windy
2129windy
2229windy
2330windy
2430windy
2530windy
2630windy
2730windy
2830windy
2930windy
3030windy
3130windy

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 12 min at the start of October to 8 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 150 minutes over October. Sunrise moves from 6:40 AM to 7:49 AM, and sunset from 5:52 PM to 4:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:405:52
211.16:425:49
311.06:445:47
411.06:465:44
510.96:495:41
610.86:515:38
710.76:535:35
810.66:555:32
910.56:585:30
1010.47:005:27
1110.47:025:24
1210.37:055:21
1310.27:075:19
1410.17:095:16
1510.07:115:13
169.97:145:10
179.97:165:08
189.87:185:05
199.77:215:02
209.67:235:00
219.57:254:57
229.47:284:55
239.47:304:52
249.37:324:49
259.27:354:47
269.17:374:44
279.07:394:42
289.07:424:40
298.97:444:37
308.87:464:35
318.77:494:32

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.4 kWh/m².

For context, solar energy here swings from a low near 0.26 kWh/m² to a high of 6.22 kWh/m² in June across the year — October's 1.4 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.0Moderate
32.0Dim
41.9Dim
51.9Dim
61.8Dim
71.8Dim
81.7Dim
91.7Dim
101.6Dim
111.6Dim
121.5Dim
131.5Dim
141.4Dim
151.4Dim
161.4Dim
171.3Dim
181.3Dim
191.3Dim
201.2Dim
211.2Dim
221.1Dim
231.1Dim
241.1Dim
251.1Dim
261.0Dim
271.0Dim
281.0Dim
290.9Dim
300.9Dim
310.9Dim
Planning a trip in October

Is October a good time to visit Ruhnu?

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

2.1
Sightseeing
6th-best month of the year
0.0
Beach & pool
5th-best month of the year

October is a weaker month for outdoor sightseeing in Ruhnu.

What to pack for Ruhnu in October

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

In October, Ruhnu sees daytime highs around 10°C and nights near 9°C. Pack a warm layer, rain gear and a windbreaker. About 15 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Ruhnu in October

The nearest coast averages about 11°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 18°C and coldest in February near 1°C.

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

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr3Bracing
May7Bracing
Jun13Bracing
Jul17Cool
Aug18Cool
Sep15Cool
Oct11Bracing
Nov8Bracing
Dec5Bracing

UV index in Ruhnu in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ruhnu peaks around June 19 at about 6 (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 5 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 19UV 6Dec 20UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun6High
Jul5Moderate
Aug5Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low
Location & terrain

Where is Ruhnu?

Ruhnu sits at 57.8°N, 23.2°E, 0 m above sea level, in Estonia. The nearest listed city is Kuressaare, 67 km away.

KuressaareMuhuPärnuVentspils

Topography around Ruhnu

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

Within 3 km, the terrain around Ruhnu has only modest variations in elevation — a maximum elevation change of 38 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 38 m; within 80 km, only modest variations in elevation — a maximum elevation change of 184 m.

The land around Ruhnu is covered by water (63%) and trees (23%) within 3 km, water (99%) within 16 km, and water (70%) and trees (21%) within 80 km.

3 km
38 m
16 km
38 m
80 km
184 m
treesgrasslandcroplandwaterwetland
October weather nearby: Kuressaare 67 km · Muhu 89 km · Tukums 93 km · Jūrmala 98 km · Pärnu 98 km · Riga 108 km · Dārzciems 110 km · Ventspils 110 km

Estonia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 66% of US
price level, 2025
GDP per capita
$34,418
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
1.5
per 100k, 2023
Road deaths
4.5
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 561
Religion
none 58%Orthodox 17%Protestant 9%other 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 Ruhnu (57.8003°, 23.2483°, elevation 0 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).