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Rauma weather & best time to visit

Sun, sea & sand

Rauma at a glance

Best time
Apr – Jul
Warmest month
Jul · 19°
Warmest sea
Aug · 17.1°
Sunshine a year
1,970 h
Rain a year
647 mm
Climate
Continental
Time zone
UTC+2 / UTC+3
Elevation
14 m

Climate in Rauma

Rauma has mild to warm summers and cold winters with occasional snow. July is the warmest month with average highs of 19 °C, while February is the coolest at −1 °C. With around 1,970 hours of sunshine a year, Rauma is moderately sunny; June is the sunniest month with 10.0 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Rauma

The best time to visit Rauma is from April to July. The sea stays too cool for a classic beach holiday: even in August it only reaches 17.1 °C. For sightseeing, day trips and hiking, conditions are most comfortable from June to July. Rain is frequent in August and from October to December; the wettest month is August with 78 mm.

Rauma through the seasons

How the weather changes over the seasons, with averages for each.

Rauma in spring

Mar – May

28

Poor

  • 1–11 °C by day
  • Sea 3 °C
  • 7.2 h of sun a day
  • 23 rainy days in all

Rauma in summer

Jun – Aug

30

Poor

  • 16–19 °C by day
  • Sea 15 °C
  • 9.4 h of sun a day
  • 34 rainy days in all

Rauma in autumn

Sep – Nov

12

Poor

  • 5–15 °C by day
  • Sea 10 °C
  • 3.4 h of sun a day
  • 36 rainy days in all

Rauma in winter

Dec – Feb

10

Poor

  • −1–2 °C by day
  • Sea 2 °C
  • 1.5 h of sun a day
  • 33 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Jun – Jul

15–28 °C and not too much rain

Rainy months

Aug, Oct – Dec

Rainy season or more than 12 rainy days

Snow

Nov – Mar

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in Rauma for you.

Swimming in the sea
Sunshine
Little rain

Your best months: May – July

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

8

Holiday weather in October

Poor

Best time to visit: April – July

Keep in mindFrequent rain

A typical day in October

  1. Morning, 08:00: about 6°
  2. Midday, 13:00: about 9°
  3. Afternoon, 16:00: about 9°
  4. Evening, 20:00: about 8°
  5. Night, 23:00: about 7°

08:1318:26

Cold evenings: bring a warm jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:46–09:14 · evening 17:25–18:53
Blue hour
Morning 07:29–07:46 · evening 18:53–19:10

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Rauma compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 12° at the start of the month to 7° at the end. The sea cools from 12° to 8°. The days get 2.8 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high12°7°
Night-time low8°4°
Sea12°8°
Daylight11.5 h8.8 h

What is the weather like in Rauma in October?

In October, Rauma is cold: daytime highs average 9 °C, and nights cool down to about 6 °C. The sea averages 10.0 °C – swimming is only for the hardy. The sun is scarce, with only about 3.1 hours a day. Rain is frequent, with about 13 rainy days and 72 mm in total. All in all, October is not an ideal month for a holiday in Rauma.

More details for October

Daylight
10 h 13 min08:13 – 18:26
UV index
1 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
26 km/haverage daily peakAll months
Cloud cover
72 %on averageAll months
Hot days
0 days30 °C or more
Snow days
1 day1 cm or more of fresh snowAll months
Time zone
UTC+3offset from UTC

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %2 %
  • Few rainy daysweight 20 %36 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • Warm jacket
  • Rain jacket or umbrella

Compare two months in Rauma

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

May has the better holiday weather in Rauma: score 34 against 8. In May, days are 2 °C warmer than in October. The sea is 5 °C cooler in May. May has 5 fewer rainy days. The sun shines 7 hours longer a day in May.

October vs May, Rauma
MonthOctoberMay
Holiday weather score834better
Daytime high9°11°
Night-time low6°6°
Sea10.0°5.5°
Sunshine3.1 h9.7 hbetter
Rainy days138better
Rainfall72 mm39 mmbetter

Based on the climate averages 1996–2025.

Rauma month by month

The typical weather for every month at a glance.

10January0° · Sea 2° · 1.3 h

In January, Rauma is bitterly cold: daytime highs average 0 °C, and nights often drop below freezing (−4 °C). The sea averages 1.9 °C – swimming is only for the hardy. The sun is scarce, with only about 1.3 hours a day. Precipitation falls on about 11 days, totalling 48 mm; on about 7 of them it snows. All in all, January is not an ideal month for a holiday in Rauma.

Rauma in January
13February−1° · Sea 1° · 2.5 h

In February, Rauma is bitterly cold: daytime highs average −1 °C, and nights often drop below freezing (−6 °C). The sea averages 0.7 °C – swimming is only for the hardy. The sun is scarce, with only about 2.5 hours a day. Precipitation falls on about 9 days, totalling 35 mm; on about 6 of them it snows. All in all, February is not an ideal month for a holiday in Rauma.

Rauma in February
21March1° · Sea 1° · 4.8 h

In March, Rauma is bitterly cold: daytime highs average 1 °C, and nights often drop below freezing (−3 °C). The sea averages 0.6 °C – swimming is only for the hardy. Expect around 4.8 hours of sunshine a day. Precipitation falls on about 8 days, totalling 32 mm; on about 4 of them it snows. All in all, March is not an ideal month for a holiday in Rauma.

Rauma in March
29April6° · Sea 2° · 7.1 h

In April, Rauma is cold: daytime highs average 6 °C, and nights cool down to about 1 °C. The sea averages 2.0 °C – swimming is only for the hardy. The sun shines for around 7.1 hours a day. Rain falls on about 8 days, adding up to 32 mm. All in all, April is not an ideal month for a holiday in Rauma – and yet one of the best months here.

Rauma in April
34May11° · Sea 6° · 9.7 h

In May, Rauma is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 5.5 °C – swimming is only for the hardy. With around 9.7 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 39 mm. All in all, May is not an ideal month for a holiday in Rauma – and yet one of the best months here.

Rauma in May
33June16° · Sea 11° · 10.0 h

In June, Rauma is cool: daytime highs average 16 °C, and nights cool down to about 11 °C. The sea averages 10.8 °C – swimming is only for the hardy. With around 10.0 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 9 rainy days and 54 mm in total. All in all, June is not an ideal month for a holiday in Rauma – and yet one of the best months here.

Rauma in June
31July19° · Sea 16° · 10.0 h

In July, Rauma is mild: daytime highs average 19 °C, and nights cool down to about 15 °C. The sea averages 16.0 °C – swimming is only for the hardy. With around 10.0 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 12 rainy days and 77 mm in total. All in all, July is not an ideal month for a holiday in Rauma – and yet one of the best months here.

Rauma in July
25August19° · Sea 17° · 8.3 h

In August, Rauma is mild: daytime highs average 19 °C, and nights cool down to about 15 °C. The sea averages 17.1 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8.3 hours a day. Rain is frequent, with about 13 rainy days and 78 mm in total. All in all, August is not an ideal month for a holiday in Rauma.

Rauma in August
20September15° · Sea 14° · 5.8 h

In September, Rauma is cool: daytime highs average 15 °C, and nights cool down to about 11 °C. The sea averages 14.1 °C – swimming is only for the hardy. Expect around 5.8 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 63 mm in total. All in all, September is not an ideal month for a holiday in Rauma.

Rauma in September
8October9° · Sea 10° · 3.1 h

In October, Rauma is cold: daytime highs average 9 °C, and nights cool down to about 6 °C. The sea averages 10.0 °C – swimming is only for the hardy. The sun is scarce, with only about 3.1 hours a day. Rain is frequent, with about 13 rainy days and 72 mm in total. All in all, October is not an ideal month for a holiday in Rauma.

Rauma in October
8November5° · Sea 7° · 1.3 h

In November, Rauma is cold: daytime highs average 5 °C, and nights cool down to about 2 °C. The sea averages 6.8 °C – swimming is only for the hardy. The sun is scarce, with only about 1.3 hours a day. Rain is frequent, with about 13 rainy days and 62 mm in total. Snow falls on about 3 days. All in all, November is not an ideal month for a holiday in Rauma.

Rauma in November
7December2° · Sea 4° · 0.7 h

In December, Rauma is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−2 °C). The sea averages 4.0 °C – swimming is only for the hardy. The sun is scarce, with only about 0.7 hours a day. Precipitation falls on about 13 days, totalling 56 mm; on about 5 of them it snows. It is often windy: on a typical day the wind peaks at around 28 km/h. All in all, December is not an ideal month for a holiday in Rauma.

Rauma in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Rauma

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Frost below 0°
  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°

ColdOctober: nights around 6°. The room should be heated.

The coolest nights are in February (−6°), the warmest in July (15°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from October to May, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 9°Night 6°Sea 10°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan100°−4°1.9°1.3 h1148
FebruaryFeb13−1°−6°0.7°2.5 h935
MarchMar211°−3°0.6°4.8 h832
AprilApr296°1°2.0°7.1 h832
MayMay3411°6°5.5°9.7 h839
JuneJun3316°11°10.8°10.0 h954
JulyJul3119°15°16.0°10.0 h1277
AugustAug2519°15°17.1°8.3 h1378
SeptemberSep2015°11°14.1°5.8 h1163
OctoberOct89°6°10.0°3.1 h1372
NovemberNov85°2°6.8°1.3 h1362
DecemberDec72°−2°4.0°0.7 h1356

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

61.13° N, 21.51° E · 14 m · Europe/Helsinki

Swimming calendar

Sea temperature in Rauma

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October10.0°Ccold

8 in 10 years: 8.9 – 11.2 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 10.0°8 in 10 years 8.9° – 11.2°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Rauma ranges from 0.6 °C in March to 17.1 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

The sea warms up slowly: it is warmest in August, while the air already peaks in July. From October to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 15.7 and 18.3 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan1.9°0.9°3.0°cold
FebruaryFeb0.7°−0.1°1.9°cold
MarchMar0.6°0.0°1.7°cold
AprilApr2.0°1.0°3.1°cold
MayMay5.5°4.4°6.9°cold
JuneJun10.8°8.9°13.4°cold
JulyJul16.0°14.0°18.1°cold
AugustAug17.1°15.7°18.3°fresh
SeptemberSep14.1°12.5°15.5°cold
OctoberOct10.0°8.9°11.2°cold
NovemberNov6.8°5.4°8.0°cold
DecemberDec4.0°2.7°5.1°cold
Sunshine

Sunshine hours in Rauma

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,970 hours
Sunniest month
Jun · 10.0 h a day
Least sunshine
Dec · 0.7 h a day
OctoberSunshine 3.1 hDaylight 10.2 hShare of daylight 30 %
SunshineDaylight

In October, the sun shines for about 3.1 of 10.2 hours of daylight in Rauma, 30 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Rauma: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
647 mm on 126 days
Wettest month
Aug · 78 mm
Driest month
Mar · 32 mm
OctoberRainy days 13Rainfall 72 mm

In October, Rauma has about 13 rainy days with 72 mm of rain in total.

Sun protection

UV index in Rauma

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
1 · lowLittle protection needed; sunglasses on bright days.

The sun is strongest in June (UV 5).

Minutes until sunburn in October

Very fair skin
over 2 h
Fair skin
over 2 h
Light brown skin
over 2 h
Olive skin
over 2 h

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Rauma

How breezy and how cloudy Rauma is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
24 km/h · moderate breeze
Windiest month
Dec · 28 km/h
Calmest month
Jul · 21 km/h
OctoberWind 26 km/hBeaufort 4
20
WindBeaufort 4

In October, the wind in Rauma typically peaks at 26 km/h during the day: Beaufort 4, moderate breeze.

Breezy months for windsurfing and kiting

From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
67 % · mostly cloudy
Clearest month
May · 53 %
Cloudiest month
Jan · 82 %
OctoberCloud cover 72 %Sunshine 3.1 h

In October, cloud covers on average 72 % of the sky over Rauma: mostly cloudy, with about 3.1 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Snow

Snow in Rauma

When Rauma is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
27 days
Fresh snow a year
87 cm
Snowy months
Jan – Mar

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 1Fresh snow 2 cmChance of snow 7 / 100

In October, Rauma has about 1 day with at least 1 cm of fresh snow, 2 cm in total. The chance of seeing snow during a week's stay is 7 out of 100: hardly any.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to Rauma

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Rauma in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Rauma has its best school-holiday weather during May half-term (score 34) and its weakest during October half-term (score 8).

  • Easter holidays

    Mar – Apr

    27

    Poor

    • 4 °C by day
    • Sea 2 °C
    • 6.4 h of sun a day
    • 8 rainy days a month

    Keep in mind: Snow

  • May half-term

    May – Jun

    34

    PoorBest holidays

    • 12 °C by day
    • Sea 7 °C
    • 9.8 h of sun a day
    • 8 rainy days a month
  • Summer holidays

    Jul – Aug

    27

    Poor

    • 19 °C by day
    • Sea 17 °C
    • 8.9 h of sun a day
    • 13 rainy days a month

    Keep in mind: Frequent rain

  • October half-term

    Oct

    8

    Poor

    • 9 °C by day
    • Sea 10 °C
    • 3.1 h of sun a day
    • 13 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    9

    Poor

    • 1 °C by day
    • Sea 3 °C
    • 1.0 h of sun a day
    • 12 rainy days a month

    Keep in mind: Frequent rain, Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 2 h 35 min
Distance
1,710 km
Time zone
UTC+3
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Compare & alternatives

Compare

Rauma compared

Put Rauma side by side with another destination.

Nearby:
Compare with home:

Rauma vs Uusikaupunki

In October the holiday weather in Rauma and Uusikaupunki is about equally good (score 8 vs 8). During the day it is about as warm in Uusikaupunki as in Rauma. The sea is about equally warm.

Rauma vs Uusikaupunki, in October
in OctoberRaumaUusikaupunki
Holiday weather score88
Daytime high9°9°
Sea10°10°
Sunshine3 h3 h
Rainy days1312
Best timeApr – JulJul

Through the year

OctoberRauma 9°Uusikaupunki 9°
RaumaUusikaupunki
Go to Uusikaupunki
Ranking

Finland in October: the best places

In October, Rauma ranks 29 among the 31 nearest destinations in this country.

  1. Turku9°11°21
  2. 2Espoo9°11°21
  3. 3Helsinki9°11°20
  4. 4Vantaa9°19
  5. 5Seinäjoki7°16
  6. 6Kokkola7°9°16
  7. 7Rovaniemi4°16
  8. 8Nokia8°15
  9. 29RaumaThis page9°10°8
All destinations: Finland

Near Rauma

Other destinations close by.

Places with a climate like Rauma

Destinations whose weather through the year is closest to Rauma's – good alternatives.

  1. 88 % similar7HankoFinland10°11°Best time: May – Jul
  2. 86 % similar10KirkkonummiFinland10°11°Best time: May, Jul
  3. 84 % similar11HudiksvallSweden9°9°Best time: Apr – Jul
  4. 82 % similar7PaldiskiEstonia10°11°Best time: Jul – Aug

Frequently asked questions about Rauma

When is the best time to visit Rauma?

The best time to visit Rauma is from April to July. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Rauma?

The sea temperature in Rauma ranges from 0.6 °C in March to 17.1 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Rauma in October?

Only if you don't mind cold water: in October the sea averages just 10.0 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Rauma?

July is the warmest month, with average highs of 19 °C and nights around 15 °C. February is the coolest month at −1 °C.

When does it rain most in Rauma?

Rain is frequent in August and from October to December; the wettest month is August with 78 mm. The driest month is March with 32 mm.

How many hours of sunshine does Rauma get?

Rauma gets around 1,970 hours of sunshine a year. The sunniest month is June with 10.0 hours a day; in December there are 0.7 hours a day.

What time zone is Rauma in?

Rauma is on UTC+2 in January and UTC+3 in July.

How long is the flight from London to Rauma?

A nonstop flight from London to Rauma takes about 2 h 35 min, for a straight-line distance of about 1,710 km.

Which school holidays are best for Rauma?

Rauma has its best school-holiday weather during May half-term (score 34) and its weakest during October half-term (score 8). Holiday ratings (0–100): Easter holidays 27, May half-term 34, summer holidays 27, October half-term 8, Christmas holidays 9.