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Sulina weather & best time to visit

Sun, sea & sand

Sulina at a glance

Best time
Jul – Aug
Warmest month
Jul · 27°
Warmest sea
Aug · 24.6°
Sunshine a year
2,320 h
Rain a year
444 mm
Climate
Continental
Time zone
UTC+2 / UTC+3
Elevation
3 m

Climate in Sulina

Sulina has warm to hot summers and cold winters with occasional snow. July is the warmest month with average highs of 27 °C, while January is the coolest at 4 °C. With around 2,320 hours of sunshine a year, Sulina is sunny; July is the sunniest month with 10.8 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Sulina

The best time to visit Sulina is from July to August. For a beach holiday – sea from 21 °C, warm and mostly dry – go from June to August. For sightseeing, day trips and hiking, conditions are most comfortable from May to October. The wettest month is June with 48 mm of precipitation.

Sulina through the seasons

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

Sulina in spring

Mar – May

29

Poor

  • 8–19 °C by day
  • Sea 11 °C
  • 6.9 h of sun a day
  • 22 rainy days in all

Sulina in summer

Jun – Aug

92

Excellent

  • 24–27 °C by day
  • Sea 23 °C
  • 10.3 h of sun a day
  • 19 rainy days in all

Sulina in autumn

Sep – Nov

36

Poor

  • 11–22 °C by day
  • Sea 17 °C
  • 5.3 h of sun a day
  • 18 rainy days in all

Sulina in winter

Dec – Feb

17

Poor

  • 4–6 °C by day
  • Sea 7 °C
  • 2.8 h of sun a day
  • 19 rainy days in all

Which month for what?

Beach & swimming

Jun – Aug

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

May – Oct

15–28 °C and not too much rain

Snow

Jan

Snow on 2 or more days

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: July – 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

26

Holiday weather in October

Poor

Best time to visit: July – August

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 13°
  2. Midday, 13:00: about 16°
  3. Afternoon, 16:00: about 16°
  4. Evening, 20:00: about 14°
  5. Night, 23:00: about 13°

07:1618:18

Cool evenings: pack a jumper or a jacket.

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

Light for photos in October

Golden hour
Morning 06:57–07:56 · evening 17:38–18:37
Blue hour
Morning 06:46–06:57 · evening 18:37–18:48

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 Sulina compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 19° at the start of the month to 14° at the end. The sea cools from 19° to 15°. The days get 1.5 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high19°14°
Night-time low14°9°
Sea19°15°
Daylight11.8 h10.3 h

What is the weather like in Sulina in October?

In October, Sulina is mild: daytime highs average 16 °C, and nights cool down to about 12 °C. The sea averages 17.4 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.2 hours of sunshine a day. Rain falls on about 6 days, adding up to 37 mm. All in all, October is not an ideal month for a holiday in Sulina.

More details for October

Daylight
11 h 3 min07:16 – 18:18
UV index
3 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
19 km/haverage daily peakAll months
Cloud cover
55 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC+3offset from UTC

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %6 %
  • Sunshineweight 20 %37 %
  • Few rainy daysweight 20 %89 %

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

What to pack in October

  • Sunscreen
  • A jumper for the evenings

Compare two months in Sulina

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

vs

August has the better holiday weather in Sulina: score 98 against 26. In August, days are 11 °C warmer than in October. The sea is 7 °C warmer in August. August has one rainy day fewer. The sun shines 5 hours longer a day in August.

October vs August, Sulina
MonthOctoberAugust
Holiday weather score2698better
Daytime high16°27°
Night-time low12°21°
Sea17.4°24.6°
Sunshine5.2 h10.0 hbetter
Rainy days65better
Rainfall37 mm34 mm
Muggy days0better7

Based on the climate averages 1996–2025.

Sulina month by month

The typical weather for every month at a glance.

16January4° · Sea 7° · 2.4 h

In January, Sulina is cold: daytime highs average 4 °C, and nights often drop below freezing (−1 °C). The sea averages 6.6 °C – swimming is only for the hardy. The sun is scarce, with only about 2.4 hours a day. Precipitation falls on about 7 days, totalling 37 mm; on about 3 of them it snows. All in all, January is not an ideal month for a holiday in Sulina.

Sulina in January
20February5° · Sea 5° · 3.6 h

In February, Sulina is cold: daytime highs average 5 °C, and nights cool down to about 0 °C. The sea averages 5.4 °C – swimming is only for the hardy. The sun is scarce, with only about 3.6 hours a day. Rain falls on about 6 days, adding up to 27 mm. Snow falls on about 2 days. All in all, February is not an ideal month for a holiday in Sulina.

Sulina in February
22March8° · Sea 6° · 4.8 h

In March, Sulina is cold: daytime highs average 8 °C, and nights cool down to about 4 °C. The sea averages 6.2 °C – swimming is only for the hardy. Expect around 4.8 hours of sunshine a day. Rain falls on about 7 days, adding up to 33 mm. All in all, March is not an ideal month for a holiday in Sulina.

Sulina in March
28April13° · Sea 10° · 6.8 h

In April, Sulina is cool: daytime highs average 13 °C, and nights cool down to about 9 °C. The sea averages 10.0 °C – swimming is only for the hardy. The sun shines for around 6.8 hours a day. Rain falls on about 8 days, adding up to 37 mm. All in all, April is not an ideal month for a holiday in Sulina.

Sulina in April
37May19° · Sea 16° · 9.0 h

In May, Sulina 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 9.0 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 40 mm. All in all, May is not an ideal month for a holiday in Sulina.

Sulina in May
81June24° · Sea 21° · 10.2 h

In June, Sulina is warm: daytime highs average 24 °C, and nights cool down to about 19 °C. The sea averages 21.1 °C – refreshing for a swim. With around 10.2 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 48 mm. All in all, June is an excellent month for a holiday in Sulina.

Sulina in June
96July27° · Sea 24° · 10.8 h

In July, Sulina is hot: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 23.9 °C – pleasant for swimming. With around 10.8 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 37 mm. All in all, July is an excellent month for a holiday in Sulina.

Sulina in July
98August27° · Sea 25° · 10.0 h

In August, Sulina is warm: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 24.6 °C – pleasant for swimming. With around 10.0 hours of sunshine a day, there is plenty of sun. Rain falls on about 5 days, adding up to 34 mm. All in all, August is an excellent month for a holiday in Sulina.

Sulina in August
66September22° · Sea 22° · 7.7 h

In September, Sulina is warm: daytime highs average 22 °C, and nights cool down to about 17 °C. The sea averages 21.5 °C – refreshing for a swim. The sun shines for around 7.7 hours a day. Rain falls on about 6 days, adding up to 41 mm. All in all, September is a good month for a holiday in Sulina.

Sulina in September
26October16° · Sea 17° · 5.2 h

In October, Sulina is mild: daytime highs average 16 °C, and nights cool down to about 12 °C. The sea averages 17.4 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.2 hours of sunshine a day. Rain falls on about 6 days, adding up to 37 mm. All in all, October is not an ideal month for a holiday in Sulina.

Sulina in October
17November11° · Sea 13° · 3.0 h

In November, Sulina is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 13.2 °C – swimming is only for the hardy. The sun is scarce, with only about 3.0 hours a day. Rain falls on about 6 days, adding up to 39 mm. All in all, November is not an ideal month for a holiday in Sulina.

Sulina in November
16December6° · Sea 9° · 2.4 h

In December, Sulina is cold: daytime highs average 6 °C, and nights cool down to about 1 °C. The sea averages 9.4 °C – swimming is only for the hardy. The sun is scarce, with only about 2.4 hours a day. Rain falls on about 7 days, adding up to 35 mm. All in all, December is not an ideal month for a holiday in Sulina.

Sulina in December
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 Sulina

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°
  • Warm 20–24°

CoolOctober: nights around 12°. A duvet at night and a jumper for the evening.

The coolest nights are in January (−1°), the warmest in July (21°). Tropical nights of 20 °C and more are the rule from July to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from May to June and in September. Nights fall below 8 °C on average from November to March, so the room should be heated.

Temperatures through the year

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

OctoberDay 16°Night 12°Sea 17°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan164°−1°6.6°2.4 h737
FebruaryFeb205°0°5.4°3.6 h627
MarchMar228°4°6.2°4.8 h733
AprilApr2813°9°10.0°6.8 h837
MayMay3719°15°16.0°9.0 h840
JuneJun8124°19°21.1°10.2 h848
JulyJul9627°21°23.9°10.8 h637
AugustAug9827°21°24.6°10.0 h534
SeptemberSep6622°17°21.5°7.7 h641
OctoberOct2616°12°17.4°5.2 h637
NovemberNov1711°6°13.2°3.0 h639
DecemberDec166°1°9.4°2.4 h735

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

45.16° N, 29.65° E · 3 m · Europe/Bucharest

Sea temperature
Swimming calendar

Sea temperature in Sulina

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

Sea in October17.4°Cfresh

8 in 10 years: 15.7 – 19.0 °C

Swimming season: Jun – Sep

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 17.4°8 in 10 years 15.7° – 19.0°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Sulina ranges from 5.4 °C in February to 24.6 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to September.

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 23.4 and 25.5 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan6.6°5.4°8.0°cold
FebruaryFeb5.4°4.6°6.5°cold
MarchMar6.2°5.1°7.3°cold
AprilApr10.0°8.6°11.1°cold
MayMay16.0°14.3°17.7°cold
JuneJun21.1°19.7°22.3°refreshing
JulyJul23.9°22.4°25.1°pleasant
AugustAug24.6°23.4°25.5°pleasant
SeptemberSep21.5°20.3°22.9°refreshing
OctoberOct17.4°15.7°19.0°fresh
NovemberNov13.2°11.9°14.6°cold
DecemberDec9.4°8.3°10.8°cold
Sunshine
Sunshine

Sunshine hours in Sulina

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

Per year
2,320 hours
Sunniest month
Jul · 10.8 h a day
Least sunshine
Jan · 2.4 h a day
OctoberSunshine 5.2 hDaylight 11.0 hShare of daylight 47 %
SunshineDaylight

In October, the sun shines for about 5.2 of 11.0 hours of daylight in Sulina, 47 % of the daylight hours.

Sunshine hours: measured at the weather station 8 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 Sulina: 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
444 mm on 78 days
Wettest month
Jun · 48 mm
Driest month
Feb · 27 mm
OctoberRainy days 6Rainfall 37 mm

In October, Sulina has about 6 rainy days with 37 mm of rain in total.

UV index
Sun protection

UV index in Sulina

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

Clear-sky UV in October
3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 9).

Minutes until sunburn in October

Very fair skin
about 45 min
Fair skin
about 55 min
Light brown skin
about 80 min
Olive skin
about 100 min

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 Sulina

How breezy and how cloudy Sulina 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
19 km/h · gentle breeze
Windiest month
Mar · 21 km/h
Calmest month
Jul · 17 km/h
OctoberWind 19 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Sulina typically peaks at 19 km/h during the day: Beaufort 3, gentle 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: Feb – Apr.

Clouds

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

Year average
53 % · variable cloud
Clearest month
Aug · 28 %
Cloudiest month
Jan · 71 %
OctoberCloud cover 55 %Sunshine 5.2 h

In October, cloud covers on average 55 % of the sky over Sulina: variable cloud, with about 5.2 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.

Heat & humidity
Heat & humidity

Heat and humidity in Sulina

How often the day gets hot in Sulina (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
10 days
Hottest month
Jul · 27 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 16 °C

In October, Sulina has about 0 hot days, with an average daytime high of 16 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Snow
Snow

Snow in Sulina

Snow is possible in Sulina, 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
7 days
Fresh snow a year
28 cm
Snow possible
Jan – Feb

Snow calendar

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

In October, it hardly ever snows in Sulina.

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 Sulina

Weather for your travel dates

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

Sulina 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.

Sulina has its best school-holiday weather during the summer holidays (score 97) and its weakest during the Christmas holidays (score 16).

  • Easter holidays

    Mar – Apr

    26

    Poor

    • 12 °C by day
    • Sea 9 °C
    • 6.2 h of sun a day
    • 7 rainy days a month
  • May half-term

    May – Jun

    46

    Fair

    • 20 °C by day
    • Sea 17 °C
    • 9.2 h of sun a day
    • 8 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    97

    ExcellentBest holidays

    • 27 °C by day
    • Sea 24 °C
    • 10.3 h of sun a day
    • 6 rainy days a month

    Good for: Beach & swimming, Sightseeing & walks

  • October half-term

    Oct

    26

    Poor

    • 16 °C by day
    • Sea 17 °C
    • 5.2 h of sun a day
    • 6 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    16

    Poor

    • 5 °C by day
    • Sea 8 °C
    • 2.4 h of sun a day
    • 7 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 3 h 15 min
Distance
2,320 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.

Good to know: Romania

Currency
Romanian Leu (RON)
Language
Romanian
Sockets
Type C, F · 230 V
Traffic
Drives on the right
Dialling code
+40
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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Sulina compared

Put Sulina side by side with another destination.

Nearby:
Compare with home:

Sulina vs Izmail

In October the holiday weather in Sulina and Izmail is about equally good (score 26 vs 25). During the day Izmail is 2 °C warmer than Sulina.

Sulina vs Izmail, in October
in OctoberSulinaIzmail
Holiday weather score2625
Daytime high16°18°
Sea17°no sea nearby
Sunshine5 h5 h
Rainy days65
Best timeJul – AugApr – Oct

Through the year

OctoberSulina 16°Izmail 18°
SulinaIzmail
Go to Izmail
Best places in the country
Ranking

Romania in October: the best places

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

  1. Tulcea18°85
  2. 2Galați18°83
  3. 3Brăila18°83
  4. 4Buzău18°82
  5. 5Constanța18°18°80
  6. 6Focșani17°80
  7. 7Snagov18°80
  8. 8Bucharest18°80
  9. 31SulinaThis page16°17°26
All destinations: Romania
Places nearby

Near Sulina

Other destinations close by.

Places with a similar climate

Places with a climate like Sulina

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

  1. 80 % similar26OchakivUkraine16°16°Best time: Jun – Aug
  2. 79 % similar25KaspiyskRussia18°18°Best time: Jun – Aug
  3. 79 % similar82MakhachkalaRussia18°18°Best time: May – Oct
  4. 78 % similar25KerchUkraine18°17°Best time: Jun – Aug

Frequently asked questions about Sulina

When is the best time to visit Sulina?

The best time to visit Sulina 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 Sulina?

The sea temperature in Sulina ranges from 5.4 °C in February to 24.6 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to September.

Can you swim in Sulina in October?

Only if you don't mind cold water: in October the sea averages just 17.4 °C. Comfortable swimming is possible from June to September.

What is the warmest month in Sulina?

July is the warmest month, with average highs of 27 °C and nights around 21 °C. January is the coolest month at 4 °C.

When does it rain most in Sulina?

The wettest month is June with 48 mm of precipitation. The driest month is February with 27 mm.

How many hours of sunshine does Sulina get?

Sulina gets around 2,320 hours of sunshine a year. The sunniest month is July with 10.8 hours a day; in January there are 2.4 hours a day.

What time zone is Sulina in?

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

How long is the flight from London to Sulina?

A nonstop flight from London to Sulina takes about 3 h 15 min, for a straight-line distance of about 2,320 km.

Which school holidays are best for Sulina?

Sulina has its best school-holiday weather during the summer holidays (score 97) and its weakest during the Christmas holidays (score 16). Holiday ratings (0–100): Easter holidays 26, May half-term 46, summer holidays 97, October half-term 26, Christmas holidays 16.