Mäntsälä offers a solid outdoor season. June through August are perfect for all activities. Even dinner outside manages 3/12 months, while walking is comfortable 12/12 months — impressive.
MäntsäläFinland
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Annual
3/12
Dinner Outside
29
0Jan: 0% viability
0
0Feb: 0% viability
0
0Mar: 0% viability
0
14Apr: 14% viability
14
49May: 49% viability
49
85Jun: 85% viability
85
80Jul: 80% viability
80
80Aug: 80% viability
80
38Sep: 38% viability
38
2Oct: 2% viability
2
0Nov: 0% viability
0
0Dec: 0% viability
0
3/12
Dinner Outside
0Jan: 0% viability
0
0Feb: 0% viability
0
0Mar: 0% viability
0
14Apr: 14% viability
14
49May: 49% viability
49
85Jun: 85% viability
85
80Jul: 80% viability
80
80Aug: 80% viability
80
38Sep: 38% viability
38
2Oct: 2% viability
2
0Nov: 0% viability
0
0Dec: 0% viability
0
29%
Cold
5/12
Lunch Outside
41
0Jan: 0% viability
0
3Feb: 3% viability
3
26Mar: 26% viability
26
51Apr: 51% viability
51
76May: 76% viability
76
82Jun: 82% viability
82
70Jul: 70% viability
70
72Aug: 72% viability
72
74Sep: 74% viability
74
32Oct: 32% viability
32
2Nov: 2% viability
2
0Dec: 0% viability
0
5/12
Lunch Outside
0Jan: 0% viability
0
3Feb: 3% viability
3
26Mar: 26% viability
26
51Apr: 51% viability
51
76May: 76% viability
76
82Jun: 82% viability
82
70Jul: 70% viability
70
72Aug: 72% viability
72
74Sep: 74% viability
74
32Oct: 32% viability
32
2Nov: 2% viability
2
0Dec: 0% viability
0
41%
Cold
12/12
Walking
96
80Jan: 80% viability
80
93Feb: 93% viability
93
99Mar: 99% viability
99
100Apr: 100% viability
100
100May: 100% viability
100
94Jun: 94% viability
94
96Jul: 96% viability
96
100Aug: 100% viability
100
99Sep: 99% viability
99
100Oct: 100% viability
100
96Nov: 96% viability
96
89Dec: 89% viability
89
12/12
Walking
80Jan: 80% viability
80
93Feb: 93% viability
93
99Mar: 99% viability
99
100Apr: 100% viability
100
100May: 100% viability
100
94Jun: 94% viability
94
96Jul: 96% viability
96
100Aug: 100% viability
100
99Sep: 99% viability
99
100Oct: 100% viability
100
96Nov: 96% viability
96
89Dec: 89% viability
89
96%
12/12
Running
96
80Jan: 80% viability
80
93Feb: 93% viability
93
99Mar: 99% viability
99
100Apr: 100% viability
100
100May: 100% viability
100
94Jun: 94% viability
94
96Jul: 96% viability
96
100Aug: 100% viability
100
99Sep: 99% viability
99
100Oct: 100% viability
100
96Nov: 96% viability
96
89Dec: 89% viability
89
12/12
Running
80Jan: 80% viability
80
93Feb: 93% viability
93
99Mar: 99% viability
99
100Apr: 100% viability
100
100May: 100% viability
100
94Jun: 94% viability
94
96Jul: 96% viability
96
100Aug: 100% viability
100
99Sep: 99% viability
99
100Oct: 100% viability
100
96Nov: 96% viability
96
89Dec: 89% viability
89
96%
Tap any month for details · Click activity name for overview
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025