Months in Polish: the twelve names, meanings, IPA and date forms

Frost, flowers and the harvest: what the months in Polish mean

Where English inherited a list of Roman gods and emperors, Polish kept a farmer's year. Styczeń goes back through Old Polish sieczeń to a Proto-Slavic word glossed as the winter month of cutting wood. Luty means harsh or severe, which is a fair description of February in Central Europe. Kwiecień is built on kwiat, flower, the month when things bloom.

Summer is named after what grows and what is cut. Czerwiec comes from czerw, a grub or maggot; Wiktionary gives two explanations, the season when the insects appear or the time when the red dye made from them was gathered. Lipiec is the month of lipa, the lime or linden tree. Sierpień is named after sierp, the sickle, the tool of the grain harvest.

Autumn follows the same logic. Wrzesień is the month of wrzos, heather. Październik takes its name from paździerz, the woody shives left over when flax is processed for its fibre. Listopad is a compound of liść, leaf, and padać, to fall. Grudzień comes from gruda, a clod or lump, the frozen earth of December.

Two months broke the pattern. Marzec and maj are borrowed from Latin Martius and Maius, marzec by way of German. Both replaced older Polish names that the Wikipedia article on the Polish months still records, brzezień for March and trawień for May. Kwiecień, too, pushed out an older word, Old Polish łżykwiat.

How to write a date in Polish: 3 marca, not 3 marzec

The dictionary form is used when the month stands alone: marzec jest zimny, March is cold. In a date the month means of March and goes into the genitive: 3 marca 2026, the third of March 2026. The CLDR locale data for Polish has two sets of month names for exactly this reason, the nominative for headings and calendars and the genitive, stycznia, lutego, marca and the rest, for dates. Writing 3 marzec is the most common mistake learners make with the months in Polish.

The genitive endings are not all alike. Most months add -a and many drop the e of the last syllable at the same time: styczeń becomes stycznia, kwiecień kwietnia, czerwiec czerwca, lipiec lipca. Listopad simply adds -a. Luty is the odd one out because it is an adjective used as a noun, so its genitive is lutego, like any adjective.

The long date pattern in CLDR is d MMMM y, so a Polish phone writes 28 października 2026. The full pattern adds the weekday in front: środa, 28 października 2026. The short numeric pattern is d.MM.y, which gives 28.10.2026, day first and separated by full stops.

In March, in May: the locative after w

In with a month is w plus the locative case: w marcu, in March; w maju, in May; w listopadzie, in November. Wiktionary's declension tables give these forms, and like the genitive they shift the end of the word, sometimes the consonant too, as in listopad turning into listopadzie. Luty again behaves like an adjective: w lutym.

The months in Polish are written in lower case, both in the dictionary form and in dates; the CLDR data and the dictionaries agree on that. A capital only appears at the start of a sentence. Some months also live in other words: maj gives majówka, the outing or long weekend at the start of May, a word the Wiktionary entry for maj lists among its derivatives.

Abbreviations of the months

The three-letter abbreviations in CLDR are sty, lut, mar, kwi, maj, cze, lip, sie, wrz, paź, lis and gru. They follow the first letters of the word, keep the Polish diacritic in paź, and leave May unshortened because maj has only three letters. Calendar grids that need a single letter use s, l, m, k, m, c, l, s, w, p, l, g, where four letters repeat and only the position tells them apart.

In running text the abbreviations are rare; Polish prose usually writes the genitive in full, 28 października, and keeps the short forms for tables, tickets and screens where space is tight.

Polish month names among the Slavic languages

Not every Slavic language kept its own months. Russian, for example, uses the Latin names, январь to декабрь, as the months in Russian page shows, so a Russian and a Pole name the same twelve months in two unrelated ways. Polish, Czech, Ukrainian and Croatian kept Slavic names, though they do not always place them in the same month: the months in many languages table sets the rows side by side.

Listopad is the clearest example of that drift. In Polish and Czech it is November, the month of falling leaves; in Croatian, as the table shows, listopad is October. The same word, built from leaf and fall, landed on two different months. The lime tree moved too: Croatian lipanj, from the same root as lipiec, is June.