At the summer solstice the sun stands highest, the day is longest, the night little more than a dusk. It is the peak of the light – and is celebrated with fires across Scandinavia.
When Miðsumar Falls
The summer solstice falls around 21 June – this calendar computes the exact moment to the minute (in 2026, for instance, on 21 June). Popularly midsummer is kept as Jónsmessa or St John’s night on 23/24 June.
What the Sources Say
Honestly: a great midsummer blót is less clearly attested for the Viking Age than the feasts of winter- and summer-start – Snorri’s three blóts do not name it separately. That the peak of the sun was everywhere keenly felt and marked is not in doubt. The Scandinavian midsummer fires are only later attested in writing, but widespread; the Christian Jónsmessa laid itself over the older sun-cult without displacing it.
Fire, Water, Staying Awake
On the brightest night the fires blaze in Norway and Denmark (Sankthans); in Sweden they dance round the midsummer pole (a younger custom taken from Germany). Water, herbs and flowers play a part, and one stays awake as long as the sky only dusks – once a year the light does not quite fade.
Celebrating Today
A fire in the open on the shortest night; stay awake until the sky barely darkens; garlands, water, dancing. This feast belongs outdoors – celebrate the peak of the light under the open sky.
A verse for the feast
the sun stands still,
one long breath
of gold and glow.
Kindle the fire,
stay awake with her –
once in the year
no light goes out.
And now you: write your own short verse for this feast – four or five lines are enough, it need not rhyme. Recite it next time by the fire or at the sumbel. That is the finest honour one can pay a feast.
Sources
Solstice astronomically after Meeus (to the minute); Scandinavian midsummer/Sankthans custom; Jónsmessa 24 June. A Viking-Age midsummer blót is only weakly attested (honestly noted).