Sumy 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.
SumyUkraine
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Annual
3/12
Dinner Outside
32
0Jan: 0% viability
0
0Feb: 0% viability
0
1Mar: 1% viability
1
17Apr: 17% viability
17
45May: 45% viability
45
80Jun: 80% viability
80
86Jul: 86% viability
86
91Aug: 91% viability
91
52Sep: 52% viability
52
6Oct: 6% viability
6
0Nov: 0% viability
0
0Dec: 0% viability
0
3/12
Dinner Outside
0Jan: 0% viability
0
0Feb: 0% viability
0
1Mar: 1% viability
1
17Apr: 17% viability
17
45May: 45% viability
45
80Jun: 80% viability
80
86Jul: 86% viability
86
91Aug: 91% viability
91
52Sep: 52% viability
52
6Oct: 6% viability
6
0Nov: 0% viability
0
0Dec: 0% viability
0
32%
Cold
5/12
Lunch Outside
46
1Jan: 1% viability
1
5Feb: 5% viability
5
36Mar: 36% viability
36
56Apr: 56% viability
56
74May: 74% viability
74
77Jun: 77% viability
77
72Jul: 72% viability
72
87Aug: 87% viability
87
79Sep: 79% viability
79
56Oct: 56% viability
56
9Nov: 9% viability
9
0Dec: 0% viability
0
5/12
Lunch Outside
1Jan: 1% viability
1
5Feb: 5% viability
5
36Mar: 36% viability
36
56Apr: 56% viability
56
74May: 74% viability
74
77Jun: 77% viability
77
72Jul: 72% viability
72
87Aug: 87% viability
87
79Sep: 79% viability
79
56Oct: 56% viability
56
9Nov: 9% viability
9
0Dec: 0% viability
0
46%
Cold
12/12
Walking
90
81Jan: 81% viability
81
90Feb: 90% viability
90
94Mar: 94% viability
94
96Apr: 96% viability
96
98May: 98% viability
98
91Jun: 91% viability
91
73Jul: 73% viability
73
88Aug: 88% viability
88
96Sep: 96% viability
96
96Oct: 96% viability
96
93Nov: 93% viability
93
83Dec: 83% viability
83
12/12
Walking
81Jan: 81% viability
81
90Feb: 90% viability
90
94Mar: 94% viability
94
96Apr: 96% viability
96
98May: 98% viability
98
91Jun: 91% viability
91
73Jul: 73% viability
73
88Aug: 88% viability
88
96Sep: 96% viability
96
96Oct: 96% viability
96
93Nov: 93% viability
93
83Dec: 83% viability
83
90%
12/12
Running
89
81Jan: 81% viability
81
90Feb: 90% viability
90
94Mar: 94% viability
94
96Apr: 96% viability
96
97May: 97% viability
97
88Jun: 88% viability
88
68Jul: 68% viability
68
82Aug: 82% viability
82
96Sep: 96% viability
96
96Oct: 96% viability
96
93Nov: 93% viability
93
83Dec: 83% viability
83
12/12
Running
81Jan: 81% viability
81
90Feb: 90% viability
90
94Mar: 94% viability
94
96Apr: 96% viability
96
97May: 97% viability
97
88Jun: 88% viability
88
68Jul: 68% viability
68
82Aug: 82% viability
82
96Sep: 96% viability
96
96Oct: 96% viability
96
93Nov: 93% viability
93
83Dec: 83% viability
83
89%
Heat
Tap any month for details · Click activity name for overview
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025