




Sejny
Sejny is a small town in Podlasie, Poland. It has a population of about 5,075 (2021). The climate is classified as warm-summer humid continental (Köppen Dfb), with warm summers, cold winters and precipitation in every season.
Best: May · Aug–Sep. Warmth, sunshine and dry days, month by month.
Sejny at a glance
The months with the highest weather score
Average high in July
Average low in January
86 mm of rain
30 mm of rain
within 13 km
Weather in Sejny
Now and the next ten days. The 14 and 30-day outlooks are one click away.
Rain · wind 14 km/h · humidity 97%
When to go to Sejny
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 11 | 17 | 28 | 41 | 66 | 64 | 65 | 67 | 73 | 24 | 12 | 10 |
| High | -1° | 0° | 5° | 13° | 19° | 22° | 24° | 24° | 18° | 11° | 5° | 1° |
| Low | -5° | -5° | -2° | 2° | 7° | 11° | 13° | 12° | 8° | 4° | 0° | -4° |
| Rain (mm) | 40 | 30 | 37 | 35 | 61 | 77 | 86 | 69 | 55 | 48 | 46 | 44 |
| Wet days | 17 | 12 | 9 | 12 | 13 | 15 | 18 | 14 | 9 | 14 | 14 | 15 |
What's on in Sejny
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Monuments and museums in Sejny
More museums: Klasztor podominikański
Outdoors around Sejny
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
Nature around Sejny
Wildlife in October
The birds and mammals of Poland seen most this month, compared with the rest of their year.
The sky over Sejny
Earthquakes around Sejny
The last 30 days within 300 km, and the record since 1950.
Towns and villages around Sejny
Each with its own page: weather, climate and the best time to visit.
Sejny from above
Postal code
Getting to Sejny
Places near Sejny
Places with a climate like Sejny
Matched month by month on temperature, rain and sunshine.

