The calendar in Tír na nÓg is similar to the Celtic Tree Calendar. The dates below are approximate to help you see what time of year it would be, but each of the thirteen months start with the full moon, so they vary. Tír na nÓg is in the northern hemisphere of Faerie, so the seasons are similar to the seasons in our northern hemisphere with milder weather down in Dalsheen and icier temps up in the Dwarven kingdom.
You can learn more about the Celtic tree calendar here.
|Beth||beh||Birch – Dec 24|
|Luis||loush||Rowan – Jan 21||Imbolc – Feb 1|
|Nion||knee-un||Ash – Feb 18|
|Fearn||fairin||Alder – March 18||Spring Equinox – Mar 21|
|Saille||sahl-yeh||Willow – April 15||Beltane – May 1|
|Uath||hoh-uh||Hawthorn – May 13|
|Duir||Oak – June 10||Summer Solstice June 21|
|Tinne||chihnn-uh||Holly – July 8||Lughnasadh – Aug 1|
|Coll||Hazel – Aug 5|
|Muin||Vine – Sept 2||Autumn Equinox – Sept 22|
|Gort||go-ert||Ivy – Sept 30|
|Negetal||nyettle||Reed – Oct 28||Samhain – Oct 31|
|Ruis||roo-esh||Elder – Nov 25||Solstice (Yule) Dec 21|