Weather in Gdańsk in August

A good month. August works. It is not the peak, but nothing about it fights you. Highs average 21.6 °C, lows 15.9 °C, and rain falls on 13 days — nothing in the month is working against you.

August is the highest-scoring month of the twelve. The nearest rival is June, and the month at the other end of the year is January.

Rain on 13 days, 2 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average August reaches 30 °C; the day barely swings — 5.7 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest August day reached 31 °C and the coldest night fell to 10.8 °C, and the wettest single day dropped 29 mm — roughly 41% of the month's rain in one day.

August is moderately variable: 13 mm in the driest year against 157 mm in the wettest, around an average of 71 mm. Roughly two Augusts in three land near that average, and the third does something else entirely.

Wind is light at 13.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 78%, high enough to notice on the warm days without dominating them.

How August sits in the year

Temperatures hold steady either side: 21.2 °C in July, 21.6 here, 17.9 in September. Nothing about the timing within the month matters much.

Daylight in August

15 hours of daylight, losing 2 hours across the month. That is between Gdańsk's extremes of 17.2 and 7.4 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 18.8 °C in August — swimmable, but it takes a moment to commit. This is the warmest the water gets all year.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Gdańsk versus nearby

If Gdańsk is one option among several, the nearby comparison is worth making. Warsaw is close enough to be a coin toss — 4.2 °C warmer, 2 days less rain. Szczecin is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: August is the answer for Gdańsk. If it is booked out or priced out, June is the next best thing at 1 points behind, and January is the month to keep off the shortlist.

Every month in Gdańsk

See all twelve months in Gdańsk, or where else to go in August.