Climate averages 1991–2020
Gdynia weather
in August.
A mild, moderately wet month: one of the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Gdynia: daytime highs average 21.9°C and nights cool to about 14.9°C. By daytime temperature it is one of the warmest months of the year.
Expect about 81 mm of rain on roughly 13 days, which makes August a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 55 min on an average August day.
The nearest other city in this atlas is Gdańsk (20 km away). In August its highs average 22.3°C, about as warm as Gdynia, with 69 mm of rain.
Among the 60 cities listed in Poland, Gdynia ranks 57th of 60 for the warmest August highs and 55th of 60 for the driest August (rainfall, lowest first). The mean August high of those 60 cities is 23.3°C; Gdynia is 1.4°C cooler than that mean.
From August to September, average highs fall by 4.3°C to 17.6°C, and monthly rainfall falls from 81 mm to 65 mm.
The annual picture
August in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Gdynia climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.8°C-2.0°C | -2.0°C | 47 | 11.9 | 7.98 h |
| February | 2.6°C-1.9°C | -1.9°C | 38 | 10.1 | 9.710 h |
| March | 6.1°C-0.2°C | -0.2°C | 44 | 10.8 | 11.812 h |
| April | 11.6°C3.5°C | 3.5°C | 42 | 9.3 | 14.014 h |
| May | 16.3°C8.2°C | 8.2°C | 62 | 11.1 | 16.016 h |
| June | 19.6°C12.1°C | 12.1°C | 73 | 12.8 | 17.217 h |
| July | 21.9°C14.8°C | 14.8°C | 92 | 13.6 | 16.717 h |
| August, selected | 21.9°C14.9°C | 14.9°C | 81 | 12.6 | 14.915 h |
| September | 17.6°C11.6°C | 11.6°C | 65 | 11.4 | 12.813 h |
| October | 12.2°C7.2°C | 7.2°C | 63 | 11.9 | 10.611 h |
| November | 6.8°C3.1°C | 3.1°C | 50 | 11.7 | 8.59 h |
| December | 3.2°C-0.3°C | -0.3°C | 52 | 11.9 | 7.47 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Gdańsk in AugustPoland · 20 kmHigh 22.3°C · Low 14.8°C · 69 mm rain
- Elbląg in AugustPoland · 70 kmHigh 22.2°C · Low 15.2°C · 75 mm rain
- Słupsk in AugustPoland · 97 kmHigh 21.1°C · Low 15.1°C · 85 mm rain
- Grudziądz in AugustPoland · 116 kmHigh 23.0°C · Low 14.6°C · 64 mm rain
- Kaliningrad in AugustRussia · 129 kmHigh 22.4°C · Low 14.7°C · 76 mm rain
- Olsztyn in AugustPoland · 152 kmHigh 22.0°C · Low 13.9°C · 66 mm rain
- Fordon in AugustPoland · 154 kmHigh 23.2°C · Low 14.8°C · 63 mm rain
- Koszalin in AugustPoland · 157 kmHigh 21.6°C · Low 14.8°C · 78 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Gdynia) is explained once on the Gdynia year overview and on the Sources, method and limits page.