Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Crescent 44%

13:38

22:36

03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:51, Set: 15:28, Transit: 12:10. Moon - Rise: 13:38, Set: 22:36. Civil Dark: 16:22 - 07:58. Nautical Dark: 17:16 - 07:03. Astro Dark: 18:07 - 06:13

Total Clouds (% Sky Obscured)

12
25
50
60
100
97
100
100
86
86
77
88
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

12
25
50
60
100
93
100
100
86
86
36
64
69
79
82
86
100
77
80
100
100
100
91
90

Medium Clouds (% Sky Obscured)

0
0
0
14
0
3
20
32
0
0
52
0
4
70
100
100
100
100
91
95
91
100
100
85

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
18
20
20
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
2
1
3
9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
9

Fog (%)

0
1
0
1
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
Snow
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
63
16
24
25
22
18
15
13
9
8
2
11
18
11
23
14
24
27
28
24
23
37
40

Precipitation Amount (mm)

0
1.1
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
4
4
6
6
6
6
7
7
7
6
6
8
9
10
10
11
12
12
13
12
12

Chance of Frost

Temperature (°C)

-6
-5
-2
-2
-0
0
-0
0
1
1
1
1
0
0
1
2
3
3
3
4
4
4
5
5

Feels Like (°C)

-8
-8
-5
-4
-3
-4
-4
-3
-3
-2
-2
-1
-4
-3
-3
-2
-2
-1
-1
-1
-1
-1
-0
1

Dew Point (°C)

-8
-7
-4
-2
-1
-1
-1
-1
-2
-2
-2
-2
-1
-1
-1
-0
0
-1
-1
0
2
2
3
4

Relative Humidity (%)

89
87
91
96
96
92
96
89
84
84
84
84
89
91
84
85
85
72
72
77
83
85
88
91

Pressure (mb)

1017
1016
1015
1015
1014
1014
1014
1014
1013
1013
1012
1011
1011
1010
1010
1009
1009
1008
1007
1007
1007
1006
1006
1005

Ozone (du)

305
305
304
304
305
302
298
296
296
296
299
299
299
298
297
295
291
287
283
281
279
279
280
278

Friday 28

First Quarter 54%

13:37

00:10

03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:53, Set: 15:27, Transit: 12:10. Moon - Rise: 13:37, Set: 00:10. Civil Dark: 16:21 - 08:00. Nautical Dark: 17:15 - 07:05. Astro Dark: 18:06 - 06:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
99
100
96
98
100
100
100
100

Low Clouds (% Sky Obscured)

95
100
100
100
100
100
100
100
100
100
100
100
100
100
97
85
82
54
89
84
84
96
85
75

Medium Clouds (% Sky Obscured)

82
76
51
37
24
72
100
100
95
82
82
85
85
66
26
17
61
16
67
29
90
90
98
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
96
100
100
100
100
19
20
30
74
100
94
100
50
93
68
58
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
0
5
8
0
1
1
2
1
1
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
4
3
3
2
0
1
1
1
0
0
0
0
0
0
0
3

Precipitation Type

None
None
None
None
None
None
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

44
44
39
17
17
7
71
95
72
65
20
4
17
17
14
8
5
2
6
5
8
15
19
18

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.8
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
11
11
12
12
12
13
14
15
15
14
14
14
14
14
13
12
11
11
11
11
10
10
10

Chance of Frost

Temperature (°C)

5
5
5
6
6
6
7
7
7
7
8
8
8
8
8
8
8
7
7
8
7
7
8
8

Feels Like (°C)

1
1
1
1
2
2
2
3
3
4
3
3
4
4
4
4
3
3
3
3
3
4
4
4

Dew Point (°C)

4
4
4
5
5
5
6
6
6
7
7
7
7
7
7
7
5
4
6
5
5
6
7
6

Relative Humidity (%)

91
91
93
93
94
94
96
94
94
96
96
96
96
96
96
93
81
79
90
82
85
90
94
91

Pressure (mb)

1005
1004
1004
1003
1003
1003
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003
1004
1004
1004
1005
1005
1004
1004

Ozone (du)

275
273
271
269
268
265
264
263
263
262
261
262
262
261
261
261
261
262
262
262
261
260
260
260

Saturday 29

Waxing Gibbous 65%

13:36

01:46

03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:55, Set: 15:26, Transit: 12:10. Moon - Rise: 13:36, Set: 01:46. Civil Dark: 16:20 - 08:01. Nautical Dark: 17:15 - 07:06. Astro Dark: 18:05 - 06:16

Total Clouds (% Sky Obscured)

100
100
100
99
100
100
100
100
100
99
100
100
100
100
100
87
92
94
97
100
84
68
52
66

Low Clouds (% Sky Obscured)

69
84
78
78
100
100
100
100
96
95
98
96
100
98
100
87
83
83
82
81
71
62
52
61

Medium Clouds (% Sky Obscured)

100
100
99
97
97
96
100
100
99
98
97
71
75
80
85
0
39
55
71
80
56
28
1
25

High Clouds (% Sky Obscured)

97
80
80
77
73
86
87
70
66
33
79
73
68
84
96
43
0
1
22
25
2
1
52
47

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
8
9
6
9
9
8
9
9
9
9
7
9
9
9
9
9
9

Fog (%)

100
100
100
99
47
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

8
13
14
22
18
26
33
61
95
95
95
95
65
17
22
19
32
36
37
42
39
39
27
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.9
0.7
0.8
0.9
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
9
11
11
12
13
13
14
14
13
13
13
13
13
13
13
13
13
13
12
11
11
10

Chance of Frost

Temperature (°C)

8
7
7
7
7
7
7
7
7
7
6
6
6
7
6
6
6
7
6
6
6
6
6
5

Feels Like (°C)

4
3
3
3
3
3
3
2
2
2
2
2
2
3
2
2
2
2
1
2
2
2
2
0

Dew Point (°C)

5
5
5
5
5
6
6
6
6
5
5
5
5
4
4
4
4
3
3
3
3
3
2
2

Relative Humidity (%)

85
88
87
88
88
91
93
94
93
88
90
91
90
85
85
83
83
79
78
78
82
79
75
80

Pressure (mb)

1004
1004
1004
1004
1003
1003
1003
1002
1002
1002
1002
1001
1001
1001
1001
1001
1001
1002
1002
1002
1002
1003
1004
1004

Ozone (du)

260
259
259
258
259
260
261
262
263
265
267
270
272
272
272
273
282
289
285
283
287
289
288
287

Sunday 30

Waxing Gibbous 76%

13:35

No Set

03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:57, Set: 15:24, Transit: 12:11. Moon - Rise: 13:35, Set: No Set. Civil Dark: 16:19 - 08:03. Nautical Dark: 17:14 - 07:08. Astro Dark: 18:04 - 06:17

Total Clouds (% Sky Obscured)

81
95
87
79
71
65
59
54
50
50
47
46
49
48
65
83
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
78
71
65
58
57
55
54
50
50
47
46
49
46
34
26
25
44
56
71
73
77
81
86

Medium Clouds (% Sky Obscured)

53
80
66
49
33
26
20
15
15
17
20
19
25
21
34
57
69
82
89
95
97
98
100
100

High Clouds (% Sky Obscured)

11
2
5
2
30
35
30
30
25
18
11
6
17
13
35
66
100
96
100
100
99
98
96
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
9
9
8
8
8
5
6
5
2
0
0
1
0
0

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
Snow
Snow

Precipitation Probability (%)

18
14
21
23
19
19
18
8
34
35
25
32
34
35
40
46
40
42
41
48
48
46
42
61

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0.1
0.3

Wind Speed/Direction (mph)

10
10
10
8
7
6
5
5
5
6
8
8
8
7
7
7
6
4
5
5
3
3
4
4

Chance of Frost

Temperature (°C)

5
5
4
4
4
4
3
4
4
4
5
5
4
4
3
3
3
3
2
1
2
2
2
2

Feels Like (°C)

1
1
1
2
1
1
1
1
2
1
1
1
0
-0
-1
-1
-1
-0
-1
-2
-1
-1
-1
-1

Dew Point (°C)

2
1
1
2
2
2
2
3
3
3
3
2
2
2
2
1
1
2
1
1
1
2
2
2

Relative Humidity (%)

80
75
80
89
91
91
93
93
91
91
85
82
85
86
89
89
89
93
96
96
96
98
98
98

Pressure (mb)

1005
1006
1006
1007
1008
1009
1010
1011
1012
1012
1013
1013
1014
1014
1015
1015
1015
1016
1016
1017
1017
1018
1018
1018

Ozone (du)

287
288
290
290
292
290
289
288
288
288
291
295
300
303
308
309
311
312
314
314
315
316
316
315

Monday 1

Waxing Gibbous 86%

13:35

03:25

03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:59, Set: 15:23, Transit: 12:11. Moon - Rise: 13:35, Set: 03:25. Civil Dark: 16:18 - 08:05. Nautical Dark: 17:13 - 07:09. Astro Dark: 18:04 - 06:19

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
97
96
95
94
94
96
97
97
96
94
92
91
90
88
88
88
87
88

Low Clouds (% Sky Obscured)

93
100
100
100
100
96
91
87
85
83
81
79
76
74
79
84
89
85
81
77
81
84
84
80

Medium Clouds (% Sky Obscured)

100
100
100
100
100
96
94
88
82
82
74
65
55
38
26
14
5
4
4
6
5
3
1
1

High Clouds (% Sky Obscured)

99
100
99
100
100
72
42
13
16
19
22
45
65
83
78
56
38
36
39
46
32
15
0
1

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
2
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

Snow
Snow
Snow
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

82
95
95
95
95
95
95
95
93
75
51
67
47
10
11
8
3
3
2
0
1
1
0
0

Precipitation Amount (mm)

0.5
0.8
1
1.1
1.5
1.2
1
0.9
0.7
0.4
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
4
5
6
6
6
6
6
5
5
5
4
4
4
4
4
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

2
2
2
2
3
3
3
4
4
4
4
4
4
3
3
2
2
1
1
1
0
-0
-1
-1

Feels Like (°C)

-1
-1
-1
-1
-0
0
1
2
2
1
1
2
1
1
0
0
-1
-1
-1
-2
-2
-2
-2
-3

Dew Point (°C)

2
2
2
2
2
3
3
3
3
3
3
3
2
2
1
1
1
-0
-1
-1
-1
-1
-2
-2

Relative Humidity (%)

98
98
98
96
96
96
98
98
94
93
91
91
89
91
91
89
91
89
91
91
92
94
92
94

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1019
1019
1019
1020
1020
1021
1021
1021
1021
1022
1022

Ozone (du)

315
313
312
313
311
312
313
316
320
319
320
323
322
321
320
319
317
316
314
311
308
304
300
296

Tuesday 2

Waxing Gibbous 93%

13:35

05:12

03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 09:01, Set: 15:22, Transit: 12:12. Moon - Rise: 13:35, Set: 05:12. Civil Dark: 16:17 - 08:06. Nautical Dark: 17:12 - 07:11. Astro Dark: 18:03 - 06:20

Total Clouds (% Sky Obscured)

88
90
91
91
91
93
96
100
100
100
100
100
100
100
100
100
100
90
92
94
93
92
91
96

Low Clouds (% Sky Obscured)

82
83
82
81
78
85
93
100
100
100
100
97
95
92
94
96
100
90
92
90
84
51
31
30

Medium Clouds (% Sky Obscured)

1
0
5
10
14
11
9
8
30
56
75
75
70
50
25
25
25
20
15
15
16
17
22
21

High Clouds (% Sky Obscured)

2
3
2
1
0
19
34
50
59
72
81
88
85
83
77
75
72
82
91
94
93
92
91
80

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
2
4
7
8
10
10
22
29
35
30
25
9
14
12
7
12
18
23
25

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
5
5
5
5
5
6
6
6
6
6
6
6
7
7
7
8
7
7
7
6
6
6

Chance of Frost

Temperature (°C)

-1
-1
-1
-1
-1
0
1
2
2
3
3
3
3
3
3
3
4
4
3
3
2
2
2
2

Feels Like (°C)

-3
-4
-4
-4
-4
-4
-2
-1
-1
-0
0
1
1
1
0
-0
-0
-1
1
1
1
1
1
1

Dew Point (°C)

-2
-2
-2
-2
-2
-1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
-0

Relative Humidity (%)

92
92
92
92
92
94
94
93
93
89
85
82
82
82
83
82
80
80
85
86
91
89
89
88

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1020
1020
1020

Ozone (du)

296
296
295
293
290
288
285
281
278
275
272
270
269
269
268
266
264
262
261
261
261
260
259
259

Wednesday 3

Waxing Gibbous 98%

13:38

07:08

Sun - Rise: 09:03, Set: 15:21, Transit: 12:12. Moon - Rise: 13:38, Set: 07:08. Civil Dark: 16:16 - 08:08. Nautical Dark: 17:11 - 07:12. Astro Dark: 18:03 - 06:21

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Vols, Helsinki, Finland (60.17,24.39)

Generated: 27/11/25 03:38:20. Forecast: 27/11/25 to 03/12/25. Timezone: UTC+2.00