Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Crescent 27%

02:54

13:20

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
18 Bad

Sun - Rise: 08:40, Set: 16:26, Transit: 12:33. Moon - Rise: 02:54, Set: 13:20. Civil Dark: 17:07 - 07:59. Nautical Dark: 17:50 - 07:15. Astro Dark: 18:32 - 06:34

Total Clouds (% Sky Obscured)

92
78
71
68
86
84
77
61
62
69
89
91
84
100
100
95
84
89
81
91
77
83
75
87

Low Clouds (% Sky Obscured)

41
54
50
49
55
61
51
42
50
46
64
72
68
80
80
80
78
89
81
85
69
74
60
68

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)

3
37
36
62
41
10
10
5
20
31
36
25
18
56
34
25
18
10
15
17
25
18
26
33

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 (%)

0
0
0
0
0
0
0
51
95
100
100
100
100
100
100
98
1
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 (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
91
91
91
93
91
91
93
94
94
94
96
94
93
90
85
84
85
88
90
93
93
94

Pressure (mb)

1027
1027
1027
1027
1027
1026
1026
1026
1026
1025
1025
1024
1024
1024
1024
1024
1024
1023
1022
1021
1021
1021
1020
1020

Ozone (du)

327
327
327
326
325
322
320
315
312
309
305
305
303
297
297
297
299
300
299
297
296
297
299
299

Sunday 14

Waning Crescent 19%

04:07

13:32

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 OK
12 Good
13 Good
14 Good
15 Good
16 Good
17 Good
18 Good

Sun - Rise: 08:41, Set: 16:26, Transit: 12:33. Moon - Rise: 04:07, Set: 13:32. Civil Dark: 17:07 - 08:00. Nautical Dark: 17:51 - 07:16. Astro Dark: 18:32 - 06:35

Total Clouds (% Sky Obscured)

82
81
66
55
46
52
56
53
58
66
63
65
65
59
52
46
36
7
0
0
2
3
2
1

Low Clouds (% Sky Obscured)

61
61
66
52
46
52
53
49
48
56
63
65
65
59
52
46
36
7
0
0
0
0
0
0

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
2
0
1

High Clouds (% Sky Obscured)

24
32
61
42
4
1
2
1
1
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0

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 (%)

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 (%)

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

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)

11
12
11
11
12
12
11
11
11
12
11
11
11
11
12
13
12
13
12
12
12
11
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
91
93
93
93
94
93
93
91
91
91
93
93
90
82
78
74
74
73
73
77
79
79

Pressure (mb)

1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1013
1013
1012
1012
1012
1011
1011

Ozone (du)

300
300
299
298
296
294
294
295
296
297
297
298
299
302
303
306
311
315
322
332
348
337
328
323

Monday 15

Waning Crescent 12%

05:20

13:47

19 Good
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
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: 08:42, Set: 16:26, Transit: 12:34. Moon - Rise: 05:20, Set: 13:47. Civil Dark: 17:07 - 08:01. Nautical Dark: 17:51 - 07:17. Astro Dark: 18:32 - 06:36

Total Clouds (% Sky Obscured)

8
56
89
74
54
17
72
52
61
61
81
53
100
93
94
68
79
66
68
71
73
80
87
97

Low Clouds (% Sky Obscured)

0
5
27
28
24
15
3
21
9
11
14
22
17
29
23
36
34
2
3
10
9
21
35
51

Medium Clouds (% Sky Obscured)

4
3
19
45
28
2
20
29
37
26
16
24
31
36
90
19
25
66
68
71
73
80
81
94

High Clouds (% Sky Obscured)

4
56
89
1
8
1
57
1
3
29
65
8
100
61
68
60
57
55
46
56
55
55
61
64

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 (%)

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
5
4
0
0
1
1
2
7
5
2

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)

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

Chance of Frost

Temperature (°C)

7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
9
10
11
10
10
10
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
88
93
94
94
93
93
93
93
93
91
91
88
88
79
75
69
68
69
73
77
78
80

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1012
1012
1012
1013
1014
1014
1014
1013
1013
1014
1014
1014
1015

Ozone (du)

317
310
303
297
299
300
300
300
299
296
295
295
296
296
296
298
298
296
298
298
299
301
306
315

Tuesday 16

Waning Crescent 7%

06:34

14:07

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
18 Bad

Sun - Rise: 08:42, Set: 16:26, Transit: 12:34. Moon - Rise: 06:34, Set: 14:07. Civil Dark: 17:07 - 08:01. Nautical Dark: 17:51 - 07:18. Astro Dark: 18:33 - 06:36

Total Clouds (% Sky Obscured)

96
94
94
91
97
99
99
100
100
81
62
43
61
79
96
98
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

62
73
80
84
93
96
97
98
100
81
62
43
55
64
70
66
64
62
56
53
53
51
45
43

Medium Clouds (% Sky Obscured)

91
88
79
37
37
35
29
29
24
14
7
0
0
0
0
13
28
42
50
53
60
54
48
42

High Clouds (% Sky Obscured)

5
4
3
1
2
2
2
1
0
0
0
0
27
54
77
87
94
100
100
96
97
95
100
100

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 (%)

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 (%)

10
11
3
4
6
2
8
12
22
29
22
17
5
4
3
17
0
0
0
0
0
0
0
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
88
88
88
82
78
77
79
82
88
90
93
94
96
94
96
93
93
91
88
88
91
95

Pressure (mb)

1015
1015
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1019
1019
1020
1021
1021
1021
1021
1020
1020
1020
1020
1020

Ozone (du)

320
305
290
279
276
288
303
310
329
340
332
324
321
318
317
318
316
319
318
317
314
313
313
312

Wednesday 17

Waning Crescent 3%

07:46

14:36

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
18 Bad

Sun - Rise: 08:43, Set: 16:27, Transit: 12:35. Moon - Rise: 07:46, Set: 14:36. Civil Dark: 17:08 - 08:02. Nautical Dark: 17:52 - 07:18. Astro Dark: 18:33 - 06:37

Total Clouds (% Sky Obscured)

99
98
98
96
94
92
94
97
100
100
100
100
95
97
100
100
100
100
98
94
89
72
60
44

Low Clouds (% Sky Obscured)

41
42
42
45
47
67
73
75
76
70
70
65
54
70
86
73
54
35
16
10
4
8
10
15

Medium Clouds (% Sky Obscured)

37
40
40
43
55
54
62
71
72
75
74
64
23
24
19
14
9
17
12
10
5
6
7
7

High Clouds (% Sky Obscured)

92
84
76
51
25
0
33
67
100
100
100
100
77
89
100
100
100
100
97
94
88
59
31
3

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 (%)

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

Precipitation Probability (%)

1
1
15
4
6
6
23
30
27
67
95
95
22
30
39
30
20
1
3
2
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.7
1.1
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
95
95
95
94
96
96
98
96
96
96
96
94
94
93
90
87
82
84
84
85
85
85

Pressure (mb)

1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1017
1017
1019
1019
1020
1019
1018
1018
1017
1017
1016
1015
1015

Ozone (du)

311
310
309
307
305
304
303
302
302
300
300
299
299
296
294
291
290
288
287
284
282
279
280
280

Thursday 18

Waning Crescent 1%

08:51

15:16

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
18 Bad

Sun - Rise: 08:44, Set: 16:27, Transit: 12:35. Moon - Rise: 08:51, Set: 15:16. Civil Dark: 17:08 - 08:03. Nautical Dark: 17:52 - 07:19. Astro Dark: 18:33 - 06:37

Total Clouds (% Sky Obscured)

56
64
71
74
72
75
70
51
51
52
49
50
67
83
100
99
99
98
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

8
5
4
9
17
28
29
34
36
35
35
34
46
56
68
77
86
95
95
91
83
76
70
64

Medium Clouds (% Sky Obscured)

7
10
8
9
5
10
15
20
25
30
30
34
46
64
81
86
90
92
92
93
95
73
52
37

High Clouds (% Sky Obscured)

2
2
1
24
57
75
70
51
51
52
49
50
67
59
45
39
33
26
51
74
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
18
33
50
57
64
77
73
71
62
51
45
42
35
32
32
32
33
36
31
26
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.4
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
8
8
7
7
7
7
7
7
8
8
8
8
8
9
9
9
10
10
10
10
10
9
9

Feels Like (°C)

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

Dew Point (°C)

5
5
5
5
5
5
5
5
5
6
6
6
6
7
7
8
8
8
8
8
9
9
9
9

Relative Humidity (%)

85
85
85
85
85
85
85
87
87
88
88
88
88
88
90
90
90
90
90
91
93
96
96
96

Pressure (mb)

1014
1013
1013
1012
1012
1011
1011
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1012
1012
1013
1013
1013
1014
1015

Ozone (du)

280
279
278
277
277
276
276
275
274
273
272
271
270
273
275
278
279
280
281
285
290
295
299
303

Friday 19

Waning Crescent 0%

09:45

16:10

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

Sun - Rise: 08:44, Set: 16:27, Transit: 12:36. Moon - Rise: 09:45, Set: 16:10. Civil Dark: 17:08 - 08:03. Nautical Dark: 17:52 - 07:19. Astro Dark: 18:34 - 06:38

Total Clouds (% Sky Obscured)

86
76
64
64
67
72
75
79
82
85
87
89
90
89
89
79
70
61

Low Clouds (% Sky Obscured)

58
53
49
52
58
62
69
75
81
84
85
87
82
81
79
71
64
58

Medium Clouds (% Sky Obscured)

34
29
24
36
48
55
50
50
45
45
40
45
30
13
0
0
0
0

High Clouds (% Sky Obscured)

70
47
20
20
40
45
55
45
34
30
25
20
20
20
25
22
31
27

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

10
7
1
1
3
2
8
8
4
7
7
1
1
1
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
96
96
96
94
93
93
93
93
94
93
93
91
88
84

Pressure (mb)

1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1018
1019
1019
1019
1019
1019

Ozone (du)

307
312
317
323
330
338
346
344
343
341
333
325
317
312
306
301
295
289

Forecast for Amersfoort, Gemeente Amersfoort, Netherlands (52.16,5.39)

Generated: 13/12/25 19:51:35. Forecast: 13/12/25 to 19/12/25. Timezone: UTC+1.00