Climate guide for Gdynia, Poland

Best Time to Visit
Gdynia

How to read the score (0–10)
05810
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About Gdynia

Gdynia is a beach destination in Poland. Plan around late spring through early autumn for more reliable conditions, then drill into monthly scores when you need finer timing for beach travel. Use the monthly scores to weigh time by the water against heat, rainfall, humidity, daylight and sunny-day patterns.

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Travel Tips

Timing & weather
Check Gdynia's monthly climate scores before locking flights - temperate patterns shift comfort for beach trips across the year.
Getting around
In Gdynia, pair a walkable core day with one transit or transfer buffer - crowds and traffic vary by season in Poland.
Tickets & access
Reserve popular museums and day trips from Gdynia ahead in peak months; shoulder seasons are more flexible.
Pack for the profile
Pack sun protection, water shoes only where local conditions call for them, and a light layer for breezy evenings in Gdynia. Check beach access, tides, and weather before planning water activities.

Things to do in Gdynia

Gdynia, Poland. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Gdynia: the short answer

The best time to visit Gdynia is August, followed by June, July. Those months combine the most usable temperatures with the fewest lost days to rain: August averages 20°C with 82 mm of rain and about 18 sunny days. The months to avoid unless you have a specific reason are December, February. If budget matters more than perfect weather, October is the strongest of the low-rate months at 2.4/10.

Across the year Gdynia swings from 1°C in January to 20°C in August, a 18-degree spread, while rainfall ranges from 33 mm in May to 115 mm in July. That is the whole planning problem in one sentence: Gdynia is not equally good year-round, and the difference between the best and worst month here is 4.9 points on a 10-point scale.

Warmest month: August (20°C). Coolest: January (1°C). Driest: May (33 mm). Wettest: July (115 mm).

Gdynia month by month

January in Gdynia — the hardest end of the year

Hardest · 1.9/10

January averages 1°C (35°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 70 mm, so plan one flexible day in three; you still get about 0 sunny days and 7.6 hours of daylight.

It scores 1.9/10 here, 10th of 12 months, against 6.8/10 in the destination's best month.

Expect mid-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.

If your dates are flexible, August is materially better in Gdynia — 4.9 points higher on the same scale.

February in Gdynia — the hardest end of the year

Hardest · 1.9/10

February averages 3°C (37°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 79 mm, so plan one flexible day in three; you still get about 0 sunny days and 9.4 hours of daylight.

It scores 1.9/10 here, 11th of 12 months, against 6.8/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.

If your dates are flexible, August is materially better in Gdynia — 4.9 points higher on the same scale.

March in Gdynia — the hardest end of the year

Hardest · 3.4/10

March averages 4°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Expect 34 mm of rain — occasional showers rather than washed-out days — alongside about 3 sunny days and 11.5 daylight hours.

It scores 3.4/10 here, 7th of 12 months, against 6.8/10 in the destination's best month.

Expect mid-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip.

If your dates are flexible, August is materially better in Gdynia — 3.4 points higher on the same scale.

April in Gdynia — the hardest end of the year

Hardest · 4.7/10

April averages 7°C (44°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Expect 43 mm of rain — occasional showers rather than washed-out days — alongside about 13 sunny days and 13.8 daylight hours.

It scores 4.7/10 here, 5th of 12 months, against 6.8/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.

If your dates are flexible, August is materially better in Gdynia — 2.1 points higher on the same scale.

May in Gdynia — workable with trade-offs

Trade-offs · 6.2/10

May averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Expect 33 mm of rain — occasional showers rather than washed-out days — alongside about 27 sunny days and 15.8 daylight hours.

It scores 6.2/10 here, 4th of 12 months, against 6.8/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening.

June in Gdynia — workable with trade-offs

Trade-offs · 6.6/10

June averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 56 mm, so plan one flexible day in three; you still get about 27 sunny days and 17 hours of daylight.

It scores 6.6/10 here, 2nd of 12 months, against 6.8/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

July in Gdynia — workable with trade-offs

Trade-offs · 6.4/10

July averages 19°C (66°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

At 115 mm this is a genuinely wet month: about 24 sunny days in total, and outdoor plans need an indoor fallback.

It scores 6.4/10 here, 3rd of 12 months, against 6.8/10 in the destination's best month.

Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.

August in Gdynia — the year's strongest window

Best window · 6.8/10

August averages 20°C (68°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.

Rainfall runs 82 mm, so plan one flexible day in three; you still get about 18 sunny days and 14.7 hours of daylight.

On our climate-comfort scale this is the top-ranked month of the year for Gdynia at 6.8/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack light clothing, swimwear and real sun protection, a packable rain layer.

September in Gdynia — the hardest end of the year

Hardest · 4.5/10

September averages 16°C (61°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 51 mm, so plan one flexible day in three; you still get about 8 sunny days and 12.4 hours of daylight.

It scores 4.5/10 here, 6th of 12 months, against 6.8/10 in the destination's best month.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

If your dates are flexible, August is materially better in Gdynia — 2.3 points higher on the same scale.

October in Gdynia — the hardest end of the year

Hardest · 2.4/10

October averages 11°C (52°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 59 mm, so plan one flexible day in three; you still get about 0 sunny days and 10.2 hours of daylight.

It scores 2.4/10 here, 8th of 12 months, against 6.8/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

If your dates are flexible, August is materially better in Gdynia — 4.4 points higher on the same scale.

November in Gdynia — the hardest end of the year

Hardest · 2/10

November averages 5°C (41°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 70 mm, so plan one flexible day in three; you still get about 0 sunny days and 8.1 hours of daylight.

It scores 2/10 here, 9th of 12 months, against 6.8/10 in the destination's best month.

Expect low-season pricing, and crowds are light for this destination.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

If your dates are flexible, August is materially better in Gdynia — 4.8 points higher on the same scale.

December in Gdynia — the hardest end of the year

Hardest · 1.9/10

December averages 2°C (36°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Rainfall runs 71 mm, so plan one flexible day in three; you still get about 0 sunny days and 7 hours of daylight.

It scores 1.9/10 here, 12th of 12 months, against 6.8/10 in the destination's best month.

Expect mid-season pricing, and crowds are light for this destination.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.

If your dates are flexible, August is materially better in Gdynia — 4.9 points higher on the same scale.

Frequently asked

When is the best time to visit Gdynia, Poland?
In Ideal Weather mode, the best months to visit Gdynia are August, June, July. August is the single peak month with an Ideal Weather score of 6.8/10 based on temperature, rainfall, humidity, daylight and historical sunny days.
What is the weather like in Gdynia year-round?
Gdynia has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 1°C in January to 20°C in August, with Ideal Weather scores between 1.9 and 6.8 out of 10.
Which months should I avoid in Gdynia?
The lowest Ideal Weather-scoring months in Gdynia are January (1.9/10), February (1.9/10), December (1.9/10). These months typically combine less comfortable temperatures, higher rainfall or fewer sunny days.
When is the rainy season in Gdynia?
July is the wettest month in Gdynia, averaging about 115 mm of rainfall. May is the driest, at roughly 33 mm.
Which is the sunniest month in Gdynia?
May sees the most sun in Gdynia, with about 27 sunny days on average - ideal for outdoor plans.
Is Gdynia a good destination for beach and coastal travel?
Gdynia is well suited to beach and coastal travel. Its highest Ideal Weather window (August, June, July) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Gdynia calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Gdynia: temperature comfort, precipitation, humidity, daylight hours, and historical sunny days - weighted for beach and coastal travel.

Explore by month

Curated in Gdynia

Tickets & experiences