Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Crescent 55%

15:06

22:17

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: N/A, Set: N/A, Transit: 11:44. Moon - Rise: 15:06, Set: 22:17. Civil Dark: N/A - N/A. Nautical Dark: 14:16 - 09:11. Astro Dark: 16:44 - 06:43

Total Clouds (% Sky Obscured)

83
91
82
62
87
92
84
77
93
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

72
66
82
62
74
68
73
32
62
70
88
100
96
95
93
94
90
87
90
89
86
76
79
77

Medium Clouds (% Sky Obscured)

17
29
33
32
28
19
7
1
14
10
64
100
100
100
100
100
100
100
100
100
100
99
100
96

High Clouds (% Sky Obscured)

0
0
0
0
0
3
4
28
90
100
88
83
97
92
91
93
100
100
100
88
69
64
71
68

ISS Passover

Visibility (miles)

4
4
2
1
1
1
1
1
1
1
0
0
0
0
1
1
2
2
3
3
5
7
9
9

Fog (%)

1
4
0
0
0
1
0
2
0
0
2
8
12
16
5
4
3
3
2
2
1
0
0
0

Precipitation Type

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

Precipitation Probability (%)

13
1
7
10
17
6
3
5
9
27
71
95
88
83
82
85
78
67
60
49
36
24
22
21

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.4
1.2
0.8
0.6
0.5
0.5
0.4
0.4
0.3
0.2
0
0
0
0

Wind Speed/Direction (mph)

5
6
6
6
6
7
6
5
3
1
2
4
6
16
26
32
32
30
27
23
21
19
17
17

Chance of Frost

Temperature (°C)

-12
-11
-10
-10
-10
-9
-9
-10
-10
-10
-10
-11
-10
-7
-6
-6
-6
-6
-6
-7
-7
-7
-7
-8

Feels Like (°C)

-16
-15
-14
-14
-14
-13
-14
-13
-13
-13
-13
-14
-15
-14
-17
-18
-18
-17
-16
-14
-13
-12
-12
-13

Dew Point (°C)

-13
-12
-11
-11
-11
-11
-11
-11
-12
-13
-12
-12
-12
-9
-8
-8
-8
-9
-9
-10
-11
-10
-10
-11

Relative Humidity (%)

90
88
90
88
88
88
87
87
83
81
85
92
90
87
87
87
84
84
79
77
76
77
79
79

Pressure (mb)

983
984
983
983
983
983
983
982
982
982
982
982
981
981
980
980
981
981
981
981
982
981
982
981

Ozone (du)

325
324
322
320
319
320
321
323
326
330
331
329
327
327
327
326
326
325
324
324
325
326
326
325

Friday 28

First Quarter 66%

13:37

No Set

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: N/A, Set: N/A, Transit: 11:44. Moon - Rise: 13:37, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 14:11 - 09:17. Astro Dark: 16:41 - 06:47

Total Clouds (% Sky Obscured)

96
95
95
100
100
100
100
100
100
100
85
67
79
100
100
100
88
92
95
94
94
94
93
93

Low Clouds (% Sky Obscured)

78
82
79
79
72
68
55
47
50
49
39
36
35
34
47
54
60
62
58
61
60
58
51
47

Medium Clouds (% Sky Obscured)

91
69
91
100
100
100
100
98
98
100
67
44
65
100
100
99
37
8
10
5
6
0
0
0

High Clouds (% Sky Obscured)

62
66
80
82
80
74
68
64
66
65
65
60
62
60
60
53
50
49
48
40
45
45
40
40

ISS Passover

Visibility (miles)

7
5
4
4
3
3
5
9
9
9
9
9
9
8
5
7
9
3
1
0
0
0
0
0

Fog (%)

0
0
0
1
0
0
0
0
0
2
3
3
4
6
3
98
99
97
99
22
1
0
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 (%)

10
14
19
23
22
16
6
8
3
2
2
2
3
4
8
4
2
16
6
12
16
17
16
15

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)

17
15
13
12
11
10
9
9
9
8
8
8
8
8
9
8
7
7
6
5
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
75
76
76
76
79
80
79
78
78
80
78
80
80
78
75
77
81
90
90
90
90
90
88

Pressure (mb)

981
981
981
981
981
980
980
980
980
980
980
980
981
981
981
981
981
981
981
981
982
982
982
982

Ozone (du)

327
327
328
329
329
328
326
324
322
320
320
321
323
326
329
331
334
335
335
335
335
335
333
332

Saturday 29

Waxing Gibbous 76%

12:20

01:34

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: N/A, Set: N/A, Transit: 11:44. Moon - Rise: 12:20, Set: 01:34. Civil Dark: N/A - N/A. Nautical Dark: 14:06 - 09:23. Astro Dark: 16:38 - 06:50

Total Clouds (% Sky Obscured)

93
93
93
88
91
91
93
93
91
93
92
90
90
89
91
96
90
88
88
91
89
84
80
82

Low Clouds (% Sky Obscured)

49
46
47
48
66
73
76
77
81
81
82
80
78
76
76
82
78
81
74
83
74
64
52
60

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
10
26
37
2
0
21
38
32
26
20
18

High Clouds (% Sky Obscured)

45
50
50
50
45
45
50
50
50
50
55
52
39
30
8
1
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

17
14
12
7
7
11
30
39
40
37
36
39
36
33
29
21
7
5
13
9
19
17
17
24

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.1
0.1
0.1
0.2
0.1
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-14
-15
-16
-16
-17
-17
-17
-17
-17
-17
-17
-18
-17
-16
-16
-15
-15
-15
-15
-15
-15
-15
-15
-15

Feels Like (°C)

-18
-19
-19
-21
-22
-22
-22
-22
-21
-21
-21
-21
-20
-19
-19
-19
-18
-19
-19
-19
-19
-19
-19
-19

Dew Point (°C)

-16
-17
-17
-18
-19
-19
-19
-19
-18
-18
-19
-19
-18
-17
-17
-16
-16
-16
-16
-17
-16
-16
-16
-16

Relative Humidity (%)

86
86
86
86
84
86
86
86
90
91
89
91
91
91
90
90
88
90
92
90
90
90
92
92

Pressure (mb)

982
982
982
982
982
983
983
983
983
983
984
984
984
985
985
985
986
986
987
988
988
989
990
990

Ozone (du)

329
330
332
333
334
335
337
339
340
341
340
340
339
337
335
334
333
331
329
328
328
328
329
329

Sunday 30

Waxing Gibbous 86%

10:31

05:13

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: N/A, Set: N/A, Transit: 11:45. Moon - Rise: 10:31, Set: 05:13. Civil Dark: N/A - N/A. Nautical Dark: 14:01 - 09:28. Astro Dark: 16:35 - 06:54

Total Clouds (% Sky Obscured)

86
91
91
90
85
88
93
95
92
88
87
88
88
89
84
82
82
82
82
81
81
82
85
85

Low Clouds (% Sky Obscured)

69
76
79
81
81
82
88
91
86
82
77
77
77
74
72
75
77
77
78
76
77
77
78
78

Medium Clouds (% Sky Obscured)

15
13
19
21
25
18
12
5
4
3
2
5
9
16
10
5
1
0
0
1
1
1
1
0

High Clouds (% Sky Obscured)

0
0
2
4
6
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 (%)

18
20
15
10
2
4
5
12
28
31
27
24
24
14
6
7
5
13
10
11
8
13
5
14

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
4
4
4
4
5
6
6
6
7
7
8
9
9
10
10
10
10
10
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-18
-18
-19
-17
-17
-17
-17
-17
-17
-16
-17
-16
-17
-18
-18
-19
-20
-19
-19
-19
-19
-19
-19
-19

Dew Point (°C)

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

Relative Humidity (%)

92
92
90
90
90
90
90
88
90
92
92
92
90
88
86
84
83
83
83
84
84
83
83
83

Pressure (mb)

991
992
992
993
993
994
995
995
996
997
998
999
999
1000
1001
1002
1003
1004
1005
1006
1006
1007
1008
1009

Ozone (du)

330
330
330
330
329
328
327
327
327
326
325
322
320
320
320
320
321
325
327
328
329
331
332
331

Monday 1

Waxing Gibbous 93%

No Rise

No Set

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: N/A, Set: N/A, Transit: 11:45. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 13:56 - 09:34. Astro Dark: 16:33 - 06:57

Total Clouds (% Sky Obscured)

86
87
86
77
79
85
87
88
90
90
91
93
89
94
93
92
93
90
86
82
84
84
85
87

Low Clouds (% Sky Obscured)

77
78
78
73
74
78
78
75
79
80
79
81
79
82
81
82
82
81
77
74
76
77
77
78

Medium Clouds (% Sky Obscured)

0
0
2
9
6
5
16
30
31
23
15
17
13
5
5
5
5
5
6
7
5
3
1
9

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
4

ISS Passover

Visibility (miles)

2
3
2
3
2
2
3
3
3
4
5
7
9
9
3
3
2
1
2
2
3
2
2
1

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 (%)

8
5
9
11
10
11
14
6
12
12
10
11
9
4
9
9
7
8
7
6
7
8
4
7

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-19
-19
-19
-19
-18
-18
-18
-18
-18
-17
-17
-17
-17
-17
-17
-17
-18
-18
-17
-18
-18
-17
-18
-19

Dew Point (°C)

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

Relative Humidity (%)

83
83
84
84
84
84
84
84
84
84
84
84
83
83
83
83
81
81
83
83
83
84
84
86

Pressure (mb)

1009
1010
1011
1011
1012
1013
1013
1014
1014
1015
1016
1016
1017
1018
1018
1019
1019
1020
1020
1021
1021
1022
1022
1023

Ozone (du)

327
326
325
327
329
328
325
323
322
323
325
326
326
326
327
328
329
330
329
329
329
330
331
332

Tuesday 2

Waxing Gibbous 98%

No Rise

No Set

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

Sun - Rise: N/A, Set: N/A, Transit: 11:45. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 13:51 - 09:40. Astro Dark: 16:30 - 07:00

Total Clouds (% Sky Obscured)

90
93
87
81
75
68
61
55
44
32
22
23
23
24
30
36
45
50
54
60
72
85
98
92

Low Clouds (% Sky Obscured)

77
78
73
69
64
60
58
55
44
32
22
22
21
21
30
36
45
50
54
60
72
85
95
90

Medium Clouds (% Sky Obscured)

25
41
47
41
31
20
8
0
0
0
0
0
1
1
9
17
26
17
8
0
0
0
0
0

High Clouds (% Sky Obscured)

7
10
7
3
0
0
0
0
0
0
1
1
2
3
4
4
3
2
1
0
0
0
1
2

ISS Passover

Visibility (miles)

2
4
5
6
7
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 (%)

7
6
6
6
1
2
3
1
2
1
0
0
0
0
6
9
12
23
27
30
29
26
17
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-19
-19
-19
-19
-19
-20
-20
-20
-20
-20
-20
-19
-19
-19
-19
-19
-19
-19
-19
-18
-19
-19
-19
-19

Dew Point (°C)

-17
-17
-18
-18
-18
-19
-19
-19
-19
-19
-20
-20
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19

Relative Humidity (%)

86
86
84
84
84
84
82
79
79
78
77
75
75
74
73
72
72
69
70
70
68
68
68
68

Pressure (mb)

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

Ozone (du)

329
326
324
320
317
313
311
308
306
306
306
306
305
304
303
303
303
303
301
299
296
296
295
294

Wednesday 3

Waxing Gibbous 97%

No Rise

No Set

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
18 Bad

Sun - Rise: N/A, Set: N/A, Transit: 11:46. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 13:46 - 09:46. Astro Dark: 16:28 - 07:04

Total Clouds (% Sky Obscured)

86
82
83
83
84
88
92
95
97
98
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

86
82
82
81
80
75
63
58
56
55
54
44
35
25
36
40
43
38
32
25

Medium Clouds (% Sky Obscured)

0
0
0
0
0
12
26
44
71
84
87
91
95
100
99
99
99
100
100
100

High Clouds (% Sky Obscured)

3
4
10
18
27
28
39
44
54
57
65
68
73
75
83
86
100
72
40
10

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

14
1
7
8
1
4
5
1
2
2
0
3
2
1
3
4
1
4
4
0

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)

5
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-19
-18
-19
-19
-19
-19
-19
-19
-19
-20
-20
-21
-20
-21
-20
-18
-18
-17
-17
-17

Dew Point (°C)

-19
-19
-20
-19
-19
-19
-19
-19
-19
-19
-19
-20
-19
-19
-19
-17
-17
-16
-15
-15

Relative Humidity (%)

69
69
69
69
69
69
69
69
69
67
65
64
65
65
67
69
70
73
75
76

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1024
1023
1023
1022

Ozone (du)

293
291
290
288
287
285
283
281
279
278
276
274
275
275
276
277
278
279
278
276

Forecast for Longyearbyen, Spitsbergen, Svalbard and Jan Mayen (78.15,16.04)

Generated: 27/11/25 23:28:06. Forecast: 27/11/25 to 03/12/25. Timezone: UTC+1.00