This page is a single place to check Gdynia climate: monthly averages. Gdynia runs from -0.7 C in Jan to 18.5 C in Aug, a swing of 19.2 C. Rain is spread through the year, with Jul the wettest month at 2.78 mm/day and Apr the driest at 1.19 mm/day. Taken together that is roughly 710 mm of rain a year for the grid cell. Values come from a public open API; a successful result is cached so a later outage never blanks the page. Use the table for exact numbers, or the related pages below for neighbouring locations and periods.
Annual mean temperature 8.6 C
Warmest month Aug (18.5 C)
Coldest month Jan (-0.7 C)
Wettest month Jul (2.78 mm/day)
All-time record high 31.4 C
All-time record low -17.0 C
Annual precipitation 712 mm / year
Coordinates 54.51889, 18.53188
Population 257,000
Average monthly temperature and rainfall in Gdynia
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-0.7
1.87
10.6
-17.0
Feb
-0.3
1.50
9.4
-16.9
Mar
2.1
1.42
15.6
-10.6
Apr
6.5
1.19
22.1
-1.9
May
11.4
1.76
24.4
0.8
Jun
15.5
1.92
30.1
6.6
Jul
18.3
2.78
31.4
10.8
Aug
18.5
2.30
30.7
10.5
Sep
14.8
2.09
27.6
5.6
Oct
9.7
2.15
19.3
0.4
Nov
5.2
2.29
14.3
-7.2
Dec
1.5
2.10
10.0
-12.1
What the Gdynia climate table shows
Values are multi-decadal climatological averages for the 54.51889, 18.53188 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Does Gdynia get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.