When to go · Posio
Posio, month by month
The best months for Posio: Feb, Mar, Jun, Jul, Aug, Sep. Months to avoid: Apr, May, Nov.
Month by month
- JanuaryGoodOutside the best window (Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours). Across Finland: Lapland in deep winter: blue-hour days, strong cold, good auroras. Helsinki is dark and icy.-8 °C / -17 °C, 10 rain days18 °F / 1 °F, 10 rain daysCrowds: Medium
- FebruaryGreatInside Posio's best window: Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours.-7 °C / -16 °C, 9 rain days19 °F / 3 °F, 9 rain daysCrowds: Medium
- MarchGreatInside Posio's best window: Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours.-2 °C / -12 °C, 9 rain days28 °F / 10 °F, 9 rain daysCrowds: Medium
- AprilAvoidListed as a month to avoid: Nov (dark, no snow base, little open); late Apr–May (melting snow, closed winter trails).3 °C / -6 °C, 8 rain days37 °F / 21 °F, 8 rain daysCrowds: Low
- MayAvoidListed as a month to avoid: Nov (dark, no snow base, little open); late Apr–May (melting snow, closed winter trails).10 °C / 0 °C, 9 rain days50 °F / 32 °F, 9 rain daysCrowds: Low
- JuneGreatInside Posio's best window: Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours.17 °C / 6 °C, 10 rain days63 °F / 43 °F, 10 rain daysCrowds: Medium · 1 festival or holiday
- JulyGreatInside Posio's best window: Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours.20 °C / 9 °C, 11 rain days68 °F / 48 °F, 11 rain daysCrowds: High
- AugustGreatInside Posio's best window: Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours.17 °C / 7 °C, 11 rain days63 °F / 45 °F, 11 rain daysCrowds: Medium
- SeptemberGreatInside Posio's best window: Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours.11 °C / 3 °C, 10 rain days52 °F / 37 °F, 10 rain daysCrowds: Medium
- OctoberMixedOutside the best window (Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours). Across Finland: Grey and wet; museums and saunas; auroras in the north on clear nights.4 °C / -1 °C, 11 rain days39 °F / 30 °F, 11 rain daysCrowds: Low
- NovemberAvoidListed as a month to avoid: Nov (dark, no snow base, little open); late Apr–May (melting snow, closed winter trails).-2 °C / -8 °C, 11 rain days28 °F / 18 °F, 11 rain daysCrowds: Low
- DecemberGoodOutside the best window (Feb–Mar for snow and ice climbing; Jun–Aug for hiking, fishing and lake beaches; Sep for ruska colours). Across Finland: Rovaniemi's Christmas peak, polar night in the north; Helsinki Christmas market; closures 24–26 Dec.-6 °C / -14 °C, 11 rain days21 °F / 7 °F, 11 rain daysCrowds: High · 1 festival or holiday