May 2018 Weather in Helsinki — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
34
39
44
49
54
59
64
69
74
79
84
Tue, May 1
Lo:43
12 am
Hi:46
11
Lo:45
6 am
Hi:48
13
Lo:45
12 pm
Hi:46
15
Lo:41
6 pm
Hi:43
6
Wed, May 2
Lo:41
12 am
Hi:43
6
Lo:41
6 am
Hi:46
7
Lo:48
12 pm
Hi:50
16
Lo:45
6 pm
Hi:48
11
Thu, May 3
Lo:41
12 am
Hi:43
6
Lo:41
6 am
Hi:52
4
Lo:52
12 pm
Hi:55
11
Lo:46
6 pm
Hi:50
12
Fri, May 4
Lo:46
12 am
Hi:50
14
Lo:46
6 am
Hi:52
13
Lo:52
12 pm
Hi:54
13
Lo:45
6 pm
Hi:52
11
Sat, May 5
Lo:43
12 am
Hi:45
9
Lo:41
6 am
Hi:50
10
Lo:50
12 pm
Hi:61
7
Lo:45
6 pm
Hi:61
4
Sun, May 6
Lo:36
12 am
Hi:46
2
Lo:37
6 am
Hi:61
9
Lo:61
12 pm
Hi:63
16
Lo:48
6 pm
Hi:61
9
Mon, May 7
Lo:41
12 am
Hi:46
5
Lo:43
6 am
Hi:64
4
Lo:64
12 pm
Hi:70
12
Lo:57
6 pm
Hi:68
11
Tue, May 8
Lo:50
12 am
Hi:55
7
Lo:50
6 am
Hi:59
8
Lo:61
12 pm
Hi:63
7
Lo:45
6 pm
Hi:61
6
Wed, May 9
Lo:36
12 am
Hi:45
4
Lo:45
6 am
Hi:59
8
Lo:59
12 pm
Hi:61
13
Lo:48
6 pm
Hi:61
10
Thu, May 10
Lo:39
12 am
Hi:48
7
Lo:45
6 am
Hi:63
10
Lo:63
12 pm
Hi:64
17
Lo:50
6 pm
Hi:63
9
Fri, May 11
Lo:37
12 am
Hi:52
5
Lo:45
6 am
Hi:66
7
Lo:68
12 pm
Hi:70
14
Lo:55
6 pm
Hi:68
7
Sat, May 12
Lo:37
12 am
Hi:57
4
Lo:43
6 am
Hi:72
5
Lo:72
12 pm
Hi:73
10
Lo:48
6 pm
Hi:72
4
Sun, May 13
Lo:39
12 am
Hi:48
2
Lo:43
6 am
Hi:75
2
Lo:75
12 pm
Hi:79
7
Lo:55
6 pm
Hi:77
5
Mon, May 14
Lo:45
12 am
Hi:52
2
Lo:48
6 am
Hi:79
4
Lo:79
12 pm
Hi:82
11
Lo:57
6 pm
Hi:79
5
Tue, May 15
Lo:48
12 am
Hi:55
2
Lo:48
6 am
Hi:81
4
Lo:81
12 pm
Hi:84
11
Lo:57
6 pm
Hi:81
5
Wed, May 16
Lo:48
12 am
Hi:59
4
Lo:55
6 am
Hi:77
6
Lo:68
12 pm
Hi:79
12
Lo:55
6 pm
Hi:68
7
Thu, May 17
Lo:46
12 am
Hi:54
3
Lo:50
6 am
Hi:70
4
Lo:70
12 pm
Hi:73
9
Lo:59
6 pm
Hi:64
6
Fri, May 18
Lo:55
12 am
Hi:59
7
Lo:54
6 am
Hi:57
14
Lo:55
12 pm
Hi:63
17
Lo:52
6 pm
Hi:64
9
Sat, May 19
Lo:46
12 am
Hi:52
9
Lo:46
6 am
Hi:59
11
Lo:61
12 pm
Hi:64
9
Lo:52
6 pm
Hi:66
6
Sun, May 20
Lo:41
12 am
Hi:52
6
Lo:46
6 am
Hi:64
4
Lo:66
12 pm
Hi:72
8
Lo:57
6 pm
Hi:68
9
Mon, May 21
Lo:43
12 am
Hi:54
5
Lo:48
6 am
Hi:70
9
Lo:72
12 pm
Hi:75
16
Lo:54
6 pm
Hi:73
9
Tue, May 22
Lo:45
12 am
Hi:54
3
Lo:48
6 am
Hi:73
6
Lo:72
12 pm
Hi:75
11
Lo:61
6 pm
Hi:72
6
Wed, May 23
Lo:48
12 am
Hi:55
3
Lo:54
6 am
Hi:72
8
Lo:70
12 pm
Hi:77
14
Lo:61
6 pm
Hi:75
11
Thu, May 24
Lo:48
12 am
Hi:59
9
Lo:50
6 am
Hi:64
11
Lo:64
12 pm
Hi:68
11
Lo:48
6 pm
Hi:64
7
Fri, May 25
Lo:41
12 am
Hi:48
1
Lo:45
6 am
Hi:66
5
Lo:66
12 pm
Hi:68
10
Lo:48
6 pm
Hi:68
7
Sat, May 26
Lo:41
12 am
Hi:50
3
Lo:46
6 am
Hi:72
4
Lo:72
12 pm
Hi:75
8
Lo:61
6 pm
Hi:73
9
Sun, May 27
Lo:57
12 am
Hi:61
7
Lo:57
6 am
Hi:66
11
Lo:66
12 pm
Hi:70
12
Lo:52
6 pm
Hi:68
7
Mon, May 28
Lo:41
12 am
Hi:48
2
Lo:50
6 am
Hi:68
4
Lo:68
12 pm
Hi:70
11
Lo:52
6 pm
Hi:70
7
Tue, May 29
Lo:43
12 am
Hi:50
2
Lo:48
6 am
Hi:75
6
Lo:75
12 pm
Hi:81
14
Lo:68
6 pm
Hi:79
13
Wed, May 30
Lo:57
12 am
Hi:66
11
Lo:59
6 am
Hi:70
11
Lo:70
12 pm
Hi:72
14
Lo:61
6 pm
Hi:70
11
Thu, May 31
Lo:52
12 am
Hi:59
8
Lo:54
6 am
Hi:63
10
Lo:61
12 pm
Hi:66
10
Lo:54
6 pm
Hi:61
10
High & Low Weather Summary for May 2018
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 84 °F (May 15, 1:50 pm) | 100% (May 1, 6:50 pm) | 30.51 "Hg (May 1, 6:50 pm) |
| Low | 36 °F (May 6, 4:20 am) | 15% (May 28, 5:20 pm) | 29.71 "Hg (May 1, 10:50 am) |
| Average | 58 °F | 55% | 30.17 "Hg |
| * Reported May 1 12:20 am — May 31 11:50 pm, Helsinki. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Helsinki Weather History for May 1, 2018
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:20 am Tue, May 1 |  | 43 °F | Clear. | 6 mph | ↑ | 81% | 29.89 "Hg | 10 mi |
| 12:50 am | | 43 °F | Clear. | 7 mph | ↑ | 87% | 29.89 "Hg | 10 mi |
| 1:20 am | | 45 °F | Clear. | 7 mph | ↑ | 81% | 29.89 "Hg | 10 mi |
| 1:50 am | | 45 °F | Clear. | 8 mph | ↑ | 81% | 29.89 "Hg | 10 mi |
| 2:20 am | | 45 °F | Clear. | 9 mph | ↑ | 76% | 29.86 "Hg | 10 mi |
| 2:50 am | | 45 °F | Clear. | 10 mph | ↑ | 76% | 29.86 "Hg | 10 mi |
| 3:20 am | | 45 °F | Clear. | 12 mph | ↑ | 76% | 29.83 "Hg | 10 mi |
| 3:50 am | | 46 °F | Clear. | 12 mph | ↑ | 71% | 29.83 "Hg | 10 mi |
| 4:20 am | | 46 °F | Clear. | 13 mph | ↑ | 71% | 29.80 "Hg | 10 mi |
| 4:50 am | | 46 °F | Clear. | 14 mph | ↑ | 76% | 29.80 "Hg | 10 mi |
| 5:20 am |  | 46 °F | Sunny. | 15 mph | ↑ | 76% | 29.77 "Hg | 10 mi |
| 5:50 am |  | 46 °F | More clouds than sun. | 14 mph | ↑ | 76% | 29.80 "Hg | N/A |
| 6:20 am | | 46 °F | Partly sunny. | 10 mph | ↑ | 76% | 29.80 "Hg | N/A |
| 6:50 am | | 45 °F | More clouds than sun. | 14 mph | ↑ | 81% | 29.77 "Hg | N/A |
| 7:20 am | | 45 °F | Broken clouds. | 15 mph | ↑ | 81% | 29.77 "Hg | N/A |
| 7:50 am |  | 45 °F | Light rain. Clear. | 16 mph | ↑ | 81% | 29.74 "Hg | N/A |
| 8:20 am | | 45 °F | Light rain. Clear. | 13 mph | ↑ | 87% | 29.74 "Hg | N/A |
| 8:50 am | | 45 °F | Light rain. Partly sunny. | 17 mph | ↑ | 87% | 29.74 "Hg | 5 mi |
| 9:50 am | | 45 °F | Broken clouds. | 12 mph | ↑ | 93% | 29.74 "Hg | N/A |
| 10:20 am | | 46 °F | Partly sunny. | 10 mph | ↑ | 87% | 29.74 "Hg | N/A |
| 10:50 am | | 46 °F | Partly sunny. | 10 mph | ↑ | 87% | 29.71 "Hg | N/A |
| 11:20 am | | 46 °F | Partly sunny. | 10 mph | ↑ | 87% | 29.71 "Hg | N/A |
| 11:50 am | | 48 °F | Broken clouds. | 13 mph | ↑ | 82% | 29.71 "Hg | N/A |
| 12:20 pm | | 46 °F | Partly sunny. | 17 mph | ↑ | 82% | 29.71 "Hg | N/A |
| 12:50 pm | | 46 °F | Partly sunny. | 18 mph | ↑ | 82% | 29.71 "Hg | N/A |
| 1:20 pm | | 46 °F | Partly sunny. | 17 mph | ↑ | 87% | 29.71 "Hg | N/A |
| 1:50 pm | | 46 °F | Partly sunny. | 17 mph | ↑ | 87% | 29.71 "Hg | N/A |
| 2:20 pm | | 45 °F | Partly sunny. | 14 mph | ↑ | 93% | 29.74 "Hg | 4 mi |
| 2:50 pm | | 45 °F | Light rain. Fog. | 15 mph | ↑ | 93% | 29.74 "Hg | 2 mi |
| 3:20 pm | | 45 °F | Light rain. Fog. | 16 mph | ↑ | 93% | 29.74 "Hg | 2 mi |
| 4:20 pm | | 45 °F | Drizzle. Fog. | 15 mph | ↑ | 93% | 29.74 "Hg | 1 mi |
| 5:20 pm | | 45 °F | Light rain. Fog. | 10 mph | ↑ | 93% | 29.74 "Hg | 2 mi |
| 5:50 pm | | 45 °F | Drizzle. Fog. | 12 mph | ↑ | 93% | 29.74 "Hg | 2 mi |
| 6:50 pm | | 43 °F | Partly sunny. | 12 mph | ↑ | 100% | 29.77 "Hg | 4 mi |
| 7:50 pm |  | 43 °F | Fog. | 7 mph | ↑ | 100% | 29.77 "Hg | 1 mi |
| 8:20 pm | | 43 °F | Fog. | 7 mph | ↑ | 93% | 29.77 "Hg | 1 mi |
| 8:50 pm | | 43 °F | Fog. | 6 mph | ↑ | 93% | 29.77 "Hg | 1 mi |
| 9:20 pm | | 43 °F | Fog. | 2 mph | ↑ | 93% | 29.77 "Hg | 1 mi |
| 9:50 pm | | 43 °F | Fog. | 5 mph | ↑ | 100% | 29.80 "Hg | 1 mi |
| 10:20 pm |  | 43 °F | Fog. | 7 mph | ↑ | 93% | 29.80 "Hg | 1 mi |
| 11:20 pm | | 41 °F | Fog. | 3 mph | ↑ | 100% | 29.80 "Hg | 1 mi |
| 11:50 pm | | 41 °F | Fog. | 3 mph | ↑ | 100% | 29.80 "Hg | 1 mi |
| Weather by CustomWeather, © 2025 | ||||||||