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Ronneby weather & best time to visit

Sun, sea & sand

Ronneby at a glance

Best time
Jul – Aug
Warmest month
Jul · 23°
Warmest sea
Aug · 17.5°
Sunshine a year
2,070 h
Rain a year
631 mm
Climate
Maritime
Time zone
UTC+1 / UTC+2
Elevation
5 m

Climate in Ronneby

Ronneby has a maritime climate with moderate summers and cool, often grey winters. July is the warmest month with average highs of 23 °C, while January is the coolest at 3 °C. With around 2,070 hours of sunshine a year, Ronneby is moderately sunny; June is the sunniest month with 10.3 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Ronneby

The best time to visit Ronneby is from July to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 17.5 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to September. Rain is frequent in November; the wettest month is July with 74 mm.

Ronneby through the seasons

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

Ronneby in spring

Mar – May

28

Poor

  • 7–17 °C by day
  • Sea 5 °C
  • 7.4 h of sun a day
  • 25 rainy days in all

Ronneby in summer

Jun – Aug

48

Fair

  • 21–23 °C by day
  • Sea 16 °C
  • 9.5 h of sun a day
  • 33 rainy days in all

Ronneby in autumn

Sep – Nov

15

Poor

  • 7–18 °C by day
  • Sea 12 °C
  • 4.0 h of sun a day
  • 33 rainy days in all

Ronneby in winter

Dec – Feb

10

Poor

  • 3–4 °C by day
  • Sea 4 °C
  • 1.7 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

May – Sep

15–28 °C and not too much rain

Rainy months

Nov

Rainy season or more than 12 rainy days

Snow

Dec – Mar

Snow on 2 or more days

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: June – August

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

Your holiday weather, at a glance

Weather in October

Weather in October

12

Holiday weather in October

Poor

Best time to visit: July – August

A typical day in October

  1. Morning, 08:00: about 6°
  2. Midday, 13:00: about 12°
  3. Afternoon, 16:00: about 12°
  4. Evening, 20:00: about 9°
  5. Night, 23:00: about 7°

07:2818:01

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 07:05–08:20 · evening 17:09–18:24
Blue hour
Morning 06:50–07:05 · evening 18:24–18:39

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 Ronneby compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 15° at the start of the month to 10° at the end. The sea cools from 13° to 10°. The days get 2.2 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high15°10°
Night-time low7°3°
Sea13°10°
Daylight11.6 h9.4 h

What is the weather like in Ronneby in October?

In October, Ronneby is cool: daytime highs average 12 °C, and nights cool down to about 5 °C. The sea averages 11.7 °C – swimming is only for the hardy. The sun is scarce, with only about 3.7 hours a day. Rain is frequent, with about 11 rainy days and 64 mm in total. All in all, October is not an ideal month for a holiday in Ronneby.

More details for October

Daylight
10 h 33 min07:28 – 18:01
UV index
1 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
23 km/haverage daily peakAll months
Cloud cover
72 %on averageAll months
Hot days
0 days30 °C or more
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC+2offset from UTC

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %12 %
  • Few rainy daysweight 20 %47 %

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

What to pack in October

  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Ronneby

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

vs

July has the better holiday weather in Ronneby: score 53 against 12. In July, days are 11 °C warmer than in October. The sea is 5 °C warmer in July. July has one more rainy day. The sun shines 6 hours longer a day in July.

October vs July, Ronneby
MonthOctoberJuly
Holiday weather score1253better
Daytime high12°23°
Night-time low5°12°
Sea11.7°16.5°
Sunshine3.7 h9.7 hbetter
Rainy days11better12
Rainfall64 mmbetter74 mm
Muggy days0better1

Based on the climate averages 1996–2025.

Ronneby month by month

The typical weather for every month at a glance.

10January3° · Sea 4° · 1.6 h

In January, Ronneby is bitterly cold: daytime highs average 3 °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 1.6 hours a day. Precipitation falls on about 11 days, totalling 54 mm; on about 4 of them it snows. All in all, January is not an ideal month for a holiday in Ronneby.

Ronneby in January
12February3° · Sea 3° · 2.5 h

In February, Ronneby is cold: daytime highs average 3 °C, and nights often drop below freezing (−3 °C). The sea averages 2.9 °C – swimming is only for the hardy. The sun is scarce, with only about 2.5 hours a day. Precipitation falls on about 10 days, totalling 44 mm; on about 4 of them it snows. All in all, February is not an ideal month for a holiday in Ronneby.

Ronneby in February
20March7° · Sea 3° · 4.8 h

In March, Ronneby is cold: daytime highs average 7 °C, and nights often drop below freezing (−1 °C). The sea averages 3.0 °C – swimming is only for the hardy. Expect around 4.8 hours of sunshine a day. Rain falls on about 8 days, adding up to 34 mm. Snow falls on about 3 days. All in all, March is not an ideal month for a holiday in Ronneby.

Ronneby in March
31April12° · Sea 5° · 7.7 h

In April, Ronneby is cool: daytime highs average 12 °C, and nights cool down to about 1 °C. The sea averages 4.7 °C – swimming is only for the hardy. The sun shines for around 7.7 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 Ronneby.

Ronneby in April
32May17° · Sea 9° · 9.6 h

In May, Ronneby is mild: daytime highs average 17 °C, and nights cool down to about 6 °C. The sea averages 8.5 °C – swimming is only for the hardy. With around 9.6 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 9 rainy days and 46 mm in total. All in all, May is not an ideal month for a holiday in Ronneby.

Ronneby in May
42June21° · Sea 13° · 10.3 h

In June, Ronneby is mild: daytime highs average 21 °C, and nights cool down to about 10 °C. The sea averages 13.4 °C – swimming is only for the hardy. With around 10.3 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 10 rainy days and 54 mm in total. All in all, June is a so-so month for a holiday in Ronneby.

Ronneby in June
53July23° · Sea 17° · 9.7 h

In July, Ronneby is warm: daytime highs average 23 °C, and nights cool down to about 12 °C. The sea averages 16.5 °C – swimming is only for the hardy. With around 9.7 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 12 rainy days and 74 mm in total. All in all, July is a so-so month for a holiday in Ronneby – and yet one of the best months here.

Ronneby in July
50August22° · Sea 18° · 8.6 h

In August, Ronneby is warm: daytime highs average 22 °C, and nights cool down to about 12 °C. The sea averages 17.5 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8.6 hours a day. Rain is frequent, with about 12 rainy days and 65 mm in total. All in all, August is a so-so month for a holiday in Ronneby – and yet one of the best months here.

Ronneby in August
25September18° · Sea 15° · 6.6 h

In September, Ronneby is mild: daytime highs average 18 °C, and nights cool down to about 9 °C. The sea averages 15.3 °C – swimming is only for the hardy. The sun shines for around 6.6 hours a day. Rain is frequent, with about 9 rainy days and 51 mm in total. All in all, September is not an ideal month for a holiday in Ronneby.

Ronneby in September
12October12° · Sea 12° · 3.7 h

In October, Ronneby is cool: daytime highs average 12 °C, and nights cool down to about 5 °C. The sea averages 11.7 °C – swimming is only for the hardy. The sun is scarce, with only about 3.7 hours a day. Rain is frequent, with about 11 rainy days and 64 mm in total. All in all, October is not an ideal month for a holiday in Ronneby.

Ronneby in October
8November7° · Sea 9° · 1.7 h

In November, Ronneby is cold: daytime highs average 7 °C, and nights cool down to about 2 °C. The sea averages 8.5 °C – swimming is only for the hardy. The sun is scarce, with only about 1.7 hours a day. Rain is frequent, with about 12 rainy days and 58 mm in total. All in all, November is not an ideal month for a holiday in Ronneby.

Ronneby in November
9December4° · Sea 6° · 1.1 h

In December, Ronneby is cold: daytime highs average 4 °C, and nights often drop below freezing (−1 °C). The sea averages 5.9 °C – swimming is only for the hardy. The sun is scarce, with only about 1.1 hours a day. Precipitation falls on about 12 days, totalling 56 mm; on about 3 of them it snows. All in all, December is not an ideal month for a holiday in Ronneby.

Ronneby in December

Climate in detail

Year & climate table

Climate through the year

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

Best time to visit

Nights and sleep in Ronneby

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°

ColdOctober: nights around 5°. The room should be heated.

The coolest nights are in February (−3°), the warmest in July (12°). 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 12°Night 5°Sea 12°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan103°−2°4.0°1.6 h1154
FebruaryFeb123°−3°2.9°2.5 h1044
MarchMar207°−1°3.0°4.8 h834
AprilApr3112°1°4.7°7.7 h832
MayMay3217°6°8.5°9.6 h946
JuneJun4221°10°13.4°10.3 h1054
JulyJul5323°12°16.5°9.7 h1274
AugustAug5022°12°17.5°8.6 h1265
SeptemberSep2518°9°15.3°6.6 h951
OctoberOct1212°5°11.7°3.7 h1164
NovemberNov87°2°8.5°1.7 h1258
DecemberDec94°−1°5.9°1.1 h1256

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

56.21° N, 15.28° E · 5 m · Europe/Stockholm

Sea temperature
Swimming calendar

Sea temperature in Ronneby

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

Sea in October11.7°Ccold

8 in 10 years: 9.9 – 13.2 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 11.7°8 in 10 years 9.9° – 13.2°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Ronneby ranges from 2.9 °C in February to 17.5 °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 November to January 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 19.7 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan4.0°2.6°5.3°cold
FebruaryFeb2.9°1.7°4.0°cold
MarchMar3.0°1.6°4.3°cold
AprilApr4.7°3.5°5.8°cold
MayMay8.5°7.0°9.9°cold
JuneJun13.4°12.2°14.7°cold
JulyJul16.5°14.1°18.5°cold
AugustAug17.5°15.7°19.7°fresh
SeptemberSep15.3°13.6°16.7°cold
OctoberOct11.7°9.9°13.2°cold
NovemberNov8.5°7.5°10.0°cold
DecemberDec5.9°4.6°7.4°cold
Sunshine
Sunshine

Sunshine hours in Ronneby

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

Per year
2,070 hours
Sunniest month
Jun · 10.3 h a day
Least sunshine
Dec · 1.1 h a day
OctoberSunshine 3.7 hDaylight 10.5 hShare of daylight 35 %
SunshineDaylight

In October, the sun shines for about 3.7 of 10.5 hours of daylight in Ronneby, 35 % of the daylight hours.

Sunshine hours: measured at the weather station 22 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Ronneby: 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
631 mm on 123 days
Wettest month
Jul · 74 mm
Driest month
Apr · 32 mm
OctoberRainy days 11Rainfall 64 mm

In October, Ronneby has about 11 rainy days with 64 mm of rain in total.

UV index
Sun protection

UV index in Ronneby

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 6).

Minutes until sunburn in October

Very fair skin
about 105 min
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 & clouds

Wind and clouds in Ronneby

How breezy and how cloudy Ronneby 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
21 km/h · moderate breeze
Windiest month
Jan · 24 km/h
Calmest month
Jul · 19 km/h
OctoberWind 23 km/hBeaufort 4
20
WindBeaufort 4

In October, the wind in Ronneby typically peaks at 23 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: Sep – Jun.

Clouds

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

Year average
67 % · mostly cloudy
Clearest month
May · 56 %
Cloudiest month
Dec · 81 %
OctoberCloud cover 72 %Sunshine 3.7 h

In October, cloud covers on average 72 % of the sky over Ronneby: mostly cloudy, with about 3.7 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

Snow in Ronneby

Snow is possible in Ronneby, but no month makes it likely: 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
16 days
Fresh snow a year
52 cm
Snow possible
Dec – Mar

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 1 cmChance of snow 1 / 100

In October, it hardly ever snows in Ronneby.

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 Ronneby

Weather for your travel dates

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

Ronneby 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.

Ronneby has its best school-holiday weather during the summer holidays (score 51) and its weakest during the Christmas holidays (score 10).

  • Easter holidays

    Mar – Apr

    28

    Poor

    • 11 °C by day
    • Sea 4 °C
    • 6.8 h of sun a day
    • 8 rainy days a month

    Keep in mind: Snow

  • May half-term

    May – Jun

    34

    Poor

    • 18 °C by day
    • Sea 9 °C
    • 9.7 h of sun a day
    • 9 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    51

    FairBest holidays

    • 23 °C by day
    • Sea 17 °C
    • 9.0 h of sun a day
    • 12 rainy days a month

    Good for: Sightseeing & walks

  • October half-term

    Oct

    12

    Poor

    • 12 °C by day
    • Sea 12 °C
    • 3.7 h of sun a day
    • 11 rainy days a month
  • Christmas holidays

    Dec – Jan

    10

    Poor

    • 3 °C by day
    • Sea 5 °C
    • 1.4 h of sun a day
    • 11 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 1 h 55 min
Distance
1,160 km
Time zone
UTC+2
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.

Good to know: Sweden

Currency
Swedish Krona (SEK)
Language
Swedish
Sockets
Type C, F · 230 V
Traffic
Drives on the right
Dialling code
+46
Emergency number
112

UK plugs need a travel adapter

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

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Ronneby compared

Put Ronneby side by side with another destination.

Nearby:
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Ronneby vs Karlskrona

In October the holiday weather in Ronneby and Karlskrona is about equally good (score 12 vs 12). During the day it is about as warm in Karlskrona as in Ronneby. The sea is about equally warm.

Ronneby vs Karlskrona, in October
in OctoberRonnebyKarlskrona
Holiday weather score1212
Daytime high12°12°
Sea12°12°
Sunshine4 h4 h
Rainy days1111
Best timeJul – AugJul – Aug

Through the year

OctoberRonneby 12°Karlskrona 12°
RonnebyKarlskrona
Go to Karlskrona
Best places in the country
Ranking

Sweden in October: the best places

In October, Ronneby ranks 15 among the 31 nearest destinations in this country.

  1. Kristianstad13°38
  2. 2Malmö13°12°38
  3. 3Lund12°35
  4. 4Älmhult11°32
  5. 5Vimmerby11°31
  6. 6Ljungby11°29
  7. 7Växjö11°28
  8. 8Värnamo11°28
  9. 15RonnebyThis page12°12°12
All destinations: Sweden
Places nearby

Near Ronneby

Other destinations close by.

Places with a similar climate

Places with a climate like Ronneby

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

  1. 85 % similar12VästervikSweden12°11°Best time: Jul – Aug
  2. 85 % similar7LiepājaLatvia12°13°Best time: Jul – Aug
  3. 85 % similar11NæstvedDenmark13°12°Best time: Jul – Aug
  4. 85 % similar8PalangaLithuania12°13°Best time: Jul – Aug

Frequently asked questions about Ronneby

When is the best time to visit Ronneby?

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

How warm is the sea in Ronneby?

The sea temperature in Ronneby ranges from 2.9 °C in February to 17.5 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Ronneby in October?

Only if you don't mind cold water: in October the sea averages just 11.7 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Ronneby?

July is the warmest month, with average highs of 23 °C and nights around 12 °C. January is the coolest month at 3 °C.

When does it rain most in Ronneby?

Rain is frequent in November; the wettest month is July with 74 mm. The driest month is April with 32 mm.

How many hours of sunshine does Ronneby get?

Ronneby gets around 2,070 hours of sunshine a year. The sunniest month is June with 10.3 hours a day; in December there are 1.1 hours a day.

What time zone is Ronneby in?

Ronneby is on UTC+1 in January and UTC+2 in July.

How long is the flight from London to Ronneby?

A nonstop flight from London to Ronneby takes about 1 h 55 min, for a straight-line distance of about 1,160 km.

Which school holidays are best for Ronneby?

Ronneby has its best school-holiday weather during the summer holidays (score 51) and its weakest during the Christmas holidays (score 10). Holiday ratings (0–100): Easter holidays 28, May half-term 34, summer holidays 51, October half-term 12, Christmas holidays 10.