Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 20

Waxing Crescent 8%

09:59

18:04

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
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

Sun - Rise: 08:59, Set: 16:07, Transit: 12:33. Moon - Rise: 09:59, Set: 18:04. Civil Dark: 16:58 - 08:08. Nautical Dark: 17:51 - 07:15. Astro Dark: 18:39 - 06:26

Total Clouds (% Sky Obscured)

99
100
99
98
100
100
100
100
100
100
100
100
100
98
97
93
95
94
97
100
100
100
97
100

Low Clouds (% Sky Obscured)

99
96
88
98
100
100
100
100
100
100
98
96
98
98
97
84
86
89
95
99
100
100
95
100

Medium Clouds (% Sky Obscured)

25
35
74
98
96
96
55
81
45
30
62
40
45
33
20
26
13
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

13
15
13
14
15
15
14
5
6
0
0
20
7
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

2
4
5
4
3
2
2
3
9
9
6
4
4
3
3
2
1
1
1
1
2
2
2
2

Fog (%)

0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0

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
3
5
7
14
9
2
1
1
0
2
6
2
9
13
8
6
6
5
6
12
6

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

Chance of Frost

Temperature (°C)

-4
-2
-3
-3
-4
-3
-3
-2
-2
-2
-3
-6
-7
-8
-9
-9
-8
-7
-5
-5
-4
-4
-4
-4

Feels Like (°C)

-7
-6
-5
-6
-7
-6
-6
-6
-6
-6
-7
-9
-11
-12
-12
-13
-12
-11
-9
-9
-8
-7
-8
-7

Dew Point (°C)

-5
-3
-3
-4
-4
-4
-3
-3
-3
-3
-4
-7
-8
-9
-9
-10
-9
-8
-6
-6
-5
-5
-4
-4

Relative Humidity (%)

94
92
94
96
94
96
98
96
94
94
94
94
94
94
94
94
92
92
94
92
94
92
94
94

Pressure (mb)

1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

360
359
356
355
357
362
366
367
368
369
372
377
383
389
391
390
385
382
378
372
369
369
367
364

Wednesday 21

Waxing Crescent 14%

09:58

19:39

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
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

Sun - Rise: 08:57, Set: 16:10, Transit: 12:34. Moon - Rise: 09:58, Set: 19:39. Civil Dark: 17:00 - 08:07. Nautical Dark: 17:53 - 07:14. Astro Dark: 18:41 - 06:24

Total Clouds (% Sky Obscured)

88
100
100
85
87
83
81
79
90
87
85
93
97
100
100
100
99
99
99
99
99
99
98
98

Low Clouds (% Sky Obscured)

87
100
100
84
78
69
57
59
86
82
83
93
97
100
100
100
99
99
99
98
99
99
98
98

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

2
2
2
3
5
2
3
2
2
2
2
2
2
1
1
1
1
0
0
1
1
1
1
1

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
1
1
1
1
0
0

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 (%)

13
6
6
8
17
12
17
14
24
25
18
8
14
18
14
21
18
17
20
18
10
15
15
11

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)

7
7
7
7
7
8
8
7
7
7
7
7
8
7
7
8
8
8
8
8
7
7
7
7

Chance of Frost

Temperature (°C)

-4
-4
-4
-4
-4
-4
-5
-7
-8
-8
-9
-9
-9
-9
-9
-9
-9
-9
-9
-8
-8
-9
-9
-10

Feels Like (°C)

-7
-7
-7
-8
-8
-9
-10
-11
-12
-13
-13
-13
-14
-14
-15
-14
-14
-14
-14
-13
-13
-13
-14
-15

Dew Point (°C)

-4
-4
-5
-4
-5
-6
-6
-8
-9
-9
-10
-10
-11
-11
-11
-11
-11
-10
-10
-10
-10
-10
-11
-12

Relative Humidity (%)

94
94
92
94
91
90
92
92
92
92
90
90
88
90
88
90
88
88
88
88
88
88
88
88

Pressure (mb)

1025
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

362
363
363
360
350
346
344
343
341
339
337
339
339
336
335
338
343
344
346
345
340
337
337
341

Thursday 22

Waxing Crescent 23%

09:57

21:12

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
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

Sun - Rise: 08:55, Set: 16:12, Transit: 12:34. Moon - Rise: 09:57, Set: 21:12. Civil Dark: 17:03 - 08:05. Nautical Dark: 17:55 - 07:12. Astro Dark: 18:43 - 06:23

Total Clouds (% Sky Obscured)

97
97
97
98
100
96
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

97
97
97
98
100
96
99
100
99
100
100
100
100
99
99
99
99
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
1
9
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

1
1
1
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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 (%)

13
11
9
14
19
9
12
15
11
11
16
15
14
17
13
18
21
21
23
20
17
19
19
19

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)

7
7
7
7
7
7
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

-10
-11
-11
-11
-11
-11
-12
-12
-11
-12
-12
-12
-12
-13
-13
-13
-13
-12
-10
-10
-9
-10
-10
-11

Feels Like (°C)

-15
-16
-16
-15
-16
-16
-16
-16
-16
-17
-17
-17
-17
-17
-17
-17
-17
-16
-15
-14
-14
-14
-14
-15

Dew Point (°C)

-12
-12
-12
-13
-13
-13
-13
-13
-13
-14
-14
-13
-14
-14
-14
-14
-14
-13
-12
-11
-11
-11
-11
-12

Relative Humidity (%)

90
88
88
88
88
88
88
90
88
88
88
90
90
88
90
88
88
88
86
88
88
90
90
88

Pressure (mb)

1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026

Ozone (du)

342
343
344
344
343
345
345
349
353
353
353
353
352
354
351
346
346
346
344
346
348
350
353
355

Friday 23

Waxing Crescent 33%

09:56

22:45

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
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

Sun - Rise: 08:53, Set: 16:15, Transit: 12:34. Moon - Rise: 09:56, Set: 22:45. Civil Dark: 17:05 - 08:03. Nautical Dark: 17:57 - 07:11. Astro Dark: 18:45 - 06:21

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
4
5
5
4
4

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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 (%)

19
18
20
23
21
21
22
22
19
18
18
13
15
12
12
12
8
12
8
11
7
7
3
11

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)

6
6
6
6
5
5
5
5
5
5
5
5
5
5
5
5
5
6
6
6
7
6
6
5

Chance of Frost

Temperature (°C)

-11
-11
-11
-11
-11
-11
-11
-11
-10
-11
-11
-10
-10
-10
-10
-9
-9
-8
-8
-8
-8
-8
-9
-9

Feels Like (°C)

-16
-16
-16
-16
-15
-15
-15
-15
-15
-15
-15
-14
-15
-14
-14
-13
-13
-12
-12
-12
-13
-13
-13
-14

Dew Point (°C)

-13
-12
-13
-13
-12
-12
-12
-12
-12
-12
-12
-12
-12
-12
-11
-11
-10
-10
-10
-10
-10
-10
-10
-10

Relative Humidity (%)

88
90
90
88
88
88
90
88
90
88
88
88
90
88
90
88
90
88
87
85
85
87
87
88

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023

Ozone (du)

358
359
359
358
359
360
362
362
357
354
357
366
374
381
381
381
383
387
389
386
384
385
386
390

Saturday 24

Waxing Crescent 44%

09:55

00:22

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
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

Sun - Rise: 08:51, Set: 16:18, Transit: 12:34. Moon - Rise: 09:55, Set: 00:22. Civil Dark: 17:07 - 08:02. Nautical Dark: 17:59 - 07:09. Astro Dark: 18:47 - 06:20

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
20
40
60
59
57
60
62
63
65
70
75
75
28
30
27
21
19
28
28
33
35
28

High Clouds (% Sky Obscured)

0
0
30
60
86
66
45
27
26
25
22
20
18
17
7
7
7
5
3
0
0
0
0
0

ISS Passover

Visibility (miles)

4
5
6
5
5
9
5
4
3
2
2
1
1
1
1
2
2
2
2
2
2
1
1
0

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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 (%)

7
4
6
5
3
5
4
3
4
6
7
12
7
6
9
11
11
12
13
13
13
13
14
16

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)

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

Chance of Frost

Temperature (°C)

-9
-9
-9
-9
-9
-9
-10
-10
-10
-10
-10
-10
-10
-9
-9
-9
-9
-8
-8
-8
-8
-8
-8
-8

Feels Like (°C)

-14
-13
-13
-13
-13
-14
-14
-14
-15
-15
-14
-14
-14
-13
-14
-14
-13
-14
-13
-13
-13
-13
-13
-13

Dew Point (°C)

-11
-11
-11
-11
-11
-11
-11
-11
-12
-12
-12
-11
-11
-11
-11
-10
-10
-10
-10
-10
-10
-10
-9
-9

Relative Humidity (%)

87
85
85
87
87
87
90
90
90
90
90
90
88
88
88
88
88
87
87
87
85
88
90
92

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1020
1020
1019
1019
1017
1017
1016
1016
1015
1015
1014
1014
1013

Ozone (du)

393
393
389
385
382
380
378
377
381
386
390
392
392
390
388
388
387
387
387
388
388
386
384
382

Sunday 25

Waxing Crescent 41%

09:56

02:04

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
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

Sun - Rise: 08:49, Set: 16:20, Transit: 12:35. Moon - Rise: 09:56, Set: 02:04. Civil Dark: 17:09 - 08:00. Nautical Dark: N/A - 07:08. Astro Dark: 18:49 - 06:18

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
96
95
97
99
99
99
99
99
99
99
99
99
100
100
95

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
93
84
75
74
78
84
82
80
83
86
88
95
95
93
92
85

Medium Clouds (% Sky Obscured)

26
18
13
8
0
6
12
19
35
53
67
63
75
93
97
97
97
95
93
91
86
86
85
66

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
5
24
31
26
24
25
18
18
19
24
29
21
13
5
3

ISS Passover

Visibility (miles)

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

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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 (%)

18
19
19
20
20
20
20
21
22
23
25
25
26
27
30
31
32
34
35
34
33
32
30
27

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
4
3
3
3
4
4
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

-8
-8
-8
-8
-8
-8
-8
-9
-9
-10
-11
-11
-12
-12
-12
-12
-11
-11
-10
-10
-9
-10
-10
-11

Feels Like (°C)

-13
-13
-13
-13
-12
-12
-12
-12
-12
-14
-14
-15
-15
-15
-15
-17
-16
-17
-16
-16
-16
-14
-14
-15

Dew Point (°C)

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

Relative Humidity (%)

90
92
90
90
92
92
92
92
90
90
90
88
88
88
88
88
86
86
86
88
87
87
90
90

Pressure (mb)

1013
1012
1011
1011
1011
1010
1010
1009
1009
1008
1007
1007
1006
1006
1005
1005
1004
1004
1004
1003
1003
1002
1002
1002

Ozone (du)

380
377
375
377
378
380
380
381
382
383
383
384
386
387
389
389
389
388
390
391
393
395
397
400

Monday 26

First Quarter 56%

09:59

03:53

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

Sun - Rise: 08:47, Set: 16:23, Transit: 12:35. Moon - Rise: 09:59, Set: 03:53. Civil Dark: 17:12 - 07:58. Nautical Dark: 18:01 - 07:06. Astro Dark: 18:51 - 06:17

Total Clouds (% Sky Obscured)

91
88
83
75
66
66
65
64
62
60
56
49
38
30
25
16
6
4
2
0

Low Clouds (% Sky Obscured)

79
74
73
72
65
64
63
63
61
57
56
46
38
30
25
16
6
4
2
0

Medium Clouds (% Sky Obscured)

46
27
21
13
5
4
3
2
1
1
0
26
38
30
25
16
6
4
2
0

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
2
2
2
2
2
2
2
2
2
3
3
4
6
7
8
8
9
6
4

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Precipitation Type

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

Precipitation Probability (%)

22
14
14
11
3
4
4
3
5
3
1
2
2
1
2
2
1
2
3
3

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

-12
-13
-15
-16
-16
-17
-17
-17
-17
-17
-17
-17
-17
-17
-17
-16
-15
-14
-13
-12

Feels Like (°C)

-14
-15
-15
-19
-19
-19
-19
-19
-19
-21
-21
-21
-21
-20
-20
-21
-21
-21
-20
-20

Dew Point (°C)

-13
-15
-17
-17
-18
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-18
-17
-16
-15
-14

Relative Humidity (%)

90
88
88
88
88
86
86
85
85
86
86
86
85
85
84
85
86
86
86
85

Pressure (mb)

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

Ozone (du)

401
403
405
403
402
401
401
401
402
400
399
398
401
403
406
407
408
409
410
411

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

Generated: 20/01/26 18:20:08. Forecast: 20/01/26 to 26/01/26. Timezone: UTC+2.00