AI-generatedGdynia at a glance
- Best time
- May – Sep
- Warmest month
- Aug · 21°
- Warmest sea
- Aug · 19.0°
- Sunshine a year
- 1,780 h
- Rain a year
- 719 mm
- Climate
- Maritime
- Time zone
- UTC+1 / UTC+2
- Elevation
- 14 m
Climate in Gdynia
Gdynia has a maritime climate with moderate summers and cool, often grey winters. August is the warmest month with average highs of 21 °C, while January is the coolest at 2 °C. With around 1,780 hours of sunshine a year, Gdynia is moderately sunny; June is the sunniest month with 8.4 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: May – September
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 9°
- Midday, 13:00: about 12°
- Afternoon, 16:00: about 12°
- Evening, 20:00: about 10°
- Night, 23:00: about 9°
07:1217:51
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 06:50–08:02 · evening 17:01–18:13
- Blue hour
- Morning 06:36–06:50 · evening 18:13–18:27
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.
What is the weather like in Gdynia in October?
In October, Gdynia is cool: daytime highs average 12 °C, and nights cool down to about 8 °C. The sea averages 13.1 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 13 rainy days and 66 mm in total. All in all, October is not an ideal month for a holiday in Gdynia.
More details for October
- Daylight
- 10 h 38 min07:12 – 17:51
- 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
- 70 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Warsaw
How the score comes together
- Temperatureweight 50 %42 %
- Sunshineweight 20 %3 %
- Few rainy daysweight 30 %36 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Sea temperature in Gdynia
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 11.5 – 14.1 °C
Swimming season: Never above 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Gdynia ranges from 3.2 °C in February to 19.0 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
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 17.9 and 20.2 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 4.4° | 3.2° | 5.5° | cold |
| FebruaryFeb | 3.2° | 1.9° | 4.0° | cold |
| MarchMar | 3.3° | 1.8° | 4.4° | cold |
| AprilApr | 5.3° | 3.7° | 6.3° | cold |
| MayMay | 9.4° | 8.1° | 11.2° | cold |
| JuneJun | 14.3° | 12.4° | 17.0° | cold |
| JulyJul | 17.7° | 15.7° | 19.3° | fresh |
| AugustAug | 19.0° | 17.9° | 20.2° | fresh |
| SeptemberSep | 16.8° | 15.7° | 18.2° | cold |
| OctoberOct | 13.1° | 11.5° | 14.1° | cold |
| NovemberNov | 9.5° | 8.6° | 10.6° | cold |
| DecemberDec | 6.4° | 5.2° | 7.6° | cold |
Sunshine hours in Gdynia
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 3.2 of 10.6 hours of daylight in Gdynia, 30 % of the day.
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.
UV index in Gdynia
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 7).
Minutes until sunburn in October
- Very fair skin
- about 90 min
- Fair skin
- about 110 min
- Light brown skin
- over 2 h
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, 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.
Rain in Gdynia: 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.
In October, Gdynia has about 13 rainy days with 66 mm of rain in total.
Wind and clouds in Gdynia
How breezy and how cloudy Gdynia 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.
In October, the wind in Gdynia 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 gets there all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 70 % of the sky over Gdynia: mostly cloudy, with about 3.2 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.
Snow in Gdynia
Snow is possible in Gdynia, 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 calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Gdynia.
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.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Gdynia
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°
CoolOctober: nights around 8°. A duvet at night and a jumper for the evening.
The coolest nights are in January (−2°), the warmest in August (15°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from November to April, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 12 | 2° | −2° | 4.4° | 1.5 h | 12 | 50 |
| FebruaryFeb | 15 | 3° | −1° | 3.2° | 2.5 h | 11 | 42 |
| MarchMar | 22 | 6° | 0° | 3.3° | 4.5 h | 10 | 40 |
| AprilApr | 45 | 11° | 4° | 5.3° | 6.8 h | 9 | 41 |
| MayMay | 69 | 15° | 8° | 9.4° | 8.3 h | 11 | 62 |
| JuneJun | 79 | 19° | 13° | 14.3° | 8.4 h | 13 | 71 |
| JulyJul | 74 | 21° | 15° | 17.7° | 8.0 h | 15 | 100 |
| AugustAug | 75 | 21° | 15° | 19.0° | 7.1 h | 13 | 82 |
| SeptemberSep | 70 | 18° | 12° | 16.8° | 5.3 h | 11 | 60 |
| OctoberOct | 33 | 12° | 8° | 13.1° | 3.2 h | 13 | 66 |
| NovemberNov | 13 | 7° | 4° | 9.5° | 1.7 h | 12 | 53 |
| DecemberDec | 13 | 3° | 0° | 6.4° | 1.2 h | 12 | 53 |
Climate averages 1996–2025, 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
54.52° N, 18.53° E · 14 m · Europe/Warsaw
Best time to visit Gdynia
The best time to visit Gdynia is from May to September. The sea stays too cool for a classic beach holiday: even in August it only reaches 19.0 °C. For sightseeing, day trips and hiking, conditions are most comfortable in May and in September. Rain is most frequent from June to August and from October to January; the wettest month is July with 100 mm.
Gdynia through the seasons
How the weather changes over the seasons, with averages for each.
Gdynia in spring
Mar – May
Fair
- 6–15 °C by day
- Sea 6 °C
- 7 h of sun a day
- 31 rainy days in all
Gdynia in summer
Jun – Aug
Good
- 19–21 °C by day
- Sea 17 °C
- 8 h of sun a day
- 40 rainy days in all
Gdynia in autumn
Sep – Nov
Poor
- 7–18 °C by day
- Sea 13 °C
- 3 h of sun a day
- 36 rainy days in all
Gdynia in winter
Dec – Feb
Poor
- 2–3 °C by day
- Sea 5 °C
- 2 h of sun a day
- 35 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Gdynia for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Compare two months in Gdynia
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Gdynia: score 79 against 33. In June, days are 7 °C warmer than in October. The sea is 1 °C warmer in June. The sun shines 5 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Weather score | 33 | 79better |
| Day high | 12° | 19° |
| Night low | 8° | 13° |
| Sea | 13.1° | 14.3° |
| Sunshine | 3.2 h | 8.4 hbetter |
| Rainy days | 13 | 13 |
| Rainfall | 66 mm | 71 mm |
Based on the climate averages 1996–2025.
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
Jun – Aug, Oct – Jan
12 or more rainy days
Snow
Dec – Mar
Snow on 2 or more days
Gdynia month by month
The typical weather for every month at a glance.
12January2° · Sea 4° · 2 h
In January, Gdynia is freezing cold: daytime highs average 2 °C, and nights often drop below freezing (−2 °C). The sea averages 4.4 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. Precipitation, often as snow, falls on about 12 days, totalling 50 mm. Snow falls on about 5 days. All in all, January is not an ideal month for a holiday in Gdynia.
Gdynia in January15February3° · Sea 3° · 3 h
In February, Gdynia is freezing cold: daytime highs average 3 °C, and nights often drop below freezing (−1 °C). The sea averages 3.2 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Precipitation, often as snow, falls on about 11 days, totalling 42 mm. Snow falls on about 4 days. All in all, February is not an ideal month for a holiday in Gdynia.
Gdynia in February22March6° · Sea 3° · 5 h
In March, Gdynia is cold: daytime highs average 6 °C, and nights cool down to about 0 °C. The sea averages 3.3 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 40 mm in total. Snow falls on about 3 days. All in all, March is not an ideal month for a holiday in Gdynia.
Gdynia in March45April11° · Sea 5° · 7 h
In April, Gdynia is cool: daytime highs average 11 °C, and nights cool down to about 4 °C. The sea averages 5.3 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 9 rainy days and 41 mm in total. All in all, April is a so-so month for a holiday in Gdynia.
Gdynia in April69May15° · Sea 9° · 8 h
In May, Gdynia is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sea averages 9.4 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 62 mm in total. All in all, May is a good month for a holiday in Gdynia.
Gdynia in May79June19° · Sea 14° · 8 h
In June, Gdynia is mild: daytime highs average 19 °C, and nights cool down to about 13 °C. The sea averages 14.3 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain is frequent, with about 13 rainy days and 71 mm in total. All in all, June is a good month for a holiday in Gdynia.
Gdynia in June74July21° · Sea 18° · 8 h
In July, Gdynia is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 17.7 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. It rains often – on about 15 days, adding up to 100 mm. All in all, July is a good month for a holiday in Gdynia.
Gdynia in July75August21° · Sea 19° · 7 h
In August, Gdynia is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 19.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 82 mm in total. All in all, August is a good month for a holiday in Gdynia.
Gdynia in August70September18° · Sea 17° · 5 h
In September, Gdynia is mild: daytime highs average 18 °C, and nights cool down to about 12 °C. The sea averages 16.8 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 60 mm in total. All in all, September is a good month for a holiday in Gdynia.
Gdynia in September33October12° · Sea 13° · 3 h
In October, Gdynia is cool: daytime highs average 12 °C, and nights cool down to about 8 °C. The sea averages 13.1 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 13 rainy days and 66 mm in total. All in all, October is not an ideal month for a holiday in Gdynia.
Gdynia in October13November7° · Sea 10° · 2 h
In November, Gdynia is cold: daytime highs average 7 °C, and nights cool down to about 4 °C. The sea averages 9.5 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 12 rainy days and 53 mm in total. Snow falls on about 2 days. All in all, November is not an ideal month for a holiday in Gdynia.
Gdynia in November13December3° · Sea 6° · 1 h
In December, Gdynia is cold: daytime highs average 3 °C, and nights cool down to about 0 °C. The sea averages 6.4 °C – swimming is only for the hardy. The sun is scarce, with only about 1 hours a day. Precipitation, often as snow, falls on about 12 days, totalling 53 mm. Snow falls on about 4 days. All in all, December is not an ideal month for a holiday in Gdynia.
Gdynia in DecemberGdynia compared
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Gdynia vs. Sopot
In October Sopot has the better holiday weather (score 40 vs. 33). During the day Sopot is 1 °C warmer than Gdynia. The sea is about equally warm.
| in October | Gdynia | Sopot |
|---|---|---|
| Holiday score | 33 | 40 |
| Daytime high | 12° | 13° |
| Sea | 13° | 13° |
| Sunshine | 3 h | 3 h |
| Rainy days | 13 | 11 |
| Best time | May – Sep | Aug |
Through the year
Poland in October: the best places
In October, Gdynia ranks 20 among the 31 nearest destinations in this country.
- Kostrzyn nad Odrą14°50
- 2Wrocław14°49
- 3Legnica14°48
- 4Opole14°48
- 5Poznań13°46
- 6Gorzów Wielkopolski14°46
- 7Zielona Góra13°45
- 8Częstochowa13°45
- 20GdyniaThis page12°13°33
Planning a trip to Gdynia
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Gdynia 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.
Gdynia has its best school-holiday weather during the summer holidays (score 75) and its weakest during the Christmas holidays (score 13).
- 38
Easter holidays
Mar – Apr
Poor
- 9 °C by day
- Sea 5 °C
- 6.1 h of sun a day
- 10 rainy days a month
Keep in mind: Snow
- 71
May half-term
May – Jun
Good
- 16 °C by day
- Sea 10 °C
- 8.3 h of sun a day
- 12 rainy days a month
Good for: Sightseeing & walks
- 75
Summer holidays
Jul – Aug
GoodBest holidays
- 21 °C by day
- Sea 19 °C
- 7.4 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 33
October half-term
Oct
Poor
- 12 °C by day
- Sea 13 °C
- 3.2 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 13
Christmas holidays
Dec – Jan
Poor
- 3 °C by day
- Sea 5 °C
- 1.4 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 5 min
- Distance
- 1,310 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.
Frequently asked questions about Gdynia
When is the best time to visit Gdynia?
The best time to visit Gdynia is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Gdynia?
The sea temperature in Gdynia ranges from 3.2 °C in February to 19.0 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Gdynia in October?
Only if you don't mind cold water: in October the sea averages just 13.1 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Gdynia?
August is the warmest month, with average highs of 21 °C and nights around 15 °C. January is the coolest month at 2 °C.
When does it rain most in Gdynia?
Rain is most frequent from June to August and from October to January; the wettest month is July with 100 mm. The driest month is March with 40 mm.
How many hours of sunshine does Gdynia get?
Gdynia gets around 1,780 hours of sunshine a year. The sunniest month is June with 8.4 hours a day; in December there are 1.2 hours a day.
What time zone is Gdynia in?
Gdynia uses the time zone Europe/Warsaw: UTC+1 in January and UTC+2 in July.
How long is the flight from London to Gdynia?
A nonstop flight from London to Gdynia takes about 2 h 5 min, for a straight-line distance of about 1,310 km.
Which school holidays are best for Gdynia?
Gdynia has its best school-holiday weather during the summer holidays (score 75) and its weakest during the Christmas holidays (score 13). Holiday ratings (0–100): Easter holidays 38, May half-term 71, Summer holidays 75, October half-term 33, Christmas holidays 13.
Near Gdynia
Other destinations close by.
Places with a climate like Gdynia
Destinations whose weather through the year is closest to Gdynia's – good alternatives.