Summer Solstice 2025
In case you werenβt aware, the Summer Solstice in the Northern hemisphere took place this morning Saturday June 21, 2025 at 02:42 UTC (03:42am local Irish Time). Among other things, this means that today is the longest day of the year (as defined by the interval between sunrise and sunset).
According to this website, the interval between sunrise and sunset in Dublin today will be 17 hours and 12 seconds. which is a whole second longer than yesterday (!) and six seconds longer than tomorrow.
In the Northern hemisphere, days will get shorter from the Summer Solstice until the Winter Solstice in December.
The nights are drawing in. Although sunset does carry on getting a bit later for a few days, the days definitely start getting shorter from now on. I explained this in earlier posts here.
Incidentally, the word for βsolsticeβ in the Irish language is grianstad which translates literally as βsun-stopβ. The Summer Solstice is Grianstad an tSamhraidhβ. The nominative singular word for βSummerβ, a masculine noun in Irish, is Samhradh, but in the construction used here, βof summerβ, it is in the genitive case so becomes Samhraidh. Moreover, when a masculine noun beginning with s- in the singular genitive is preceded by the definite article an) it experiences an initial mutation in the form of a t-prothesis; hence (an tSamraidh is βof the Summerβ.
The Winter Solstice is Grianstad an Gheimhridh. The word for winter is Geimhreadh, which is masculine, and has a genitive form Geimhridh. In this case, however, because it doesnβt begin with βSβ there is no t-prothesis but instead a lenition (sΓ©imhiΓΊ) that softens the initial βGβ indicated by the βhβ. Hence Grianstad an Gheimhridh, βSun-stop of the Winterβ.
I hope this clarifies the situation.
#IrishLanguage #lenition #LongestDay #SummerSolstice #tProthesis