Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Crescent 27%

02:54

13:10

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

Sun - Rise: 08:40, Set: 16:26, Transit: 12:32. Moon - Rise: 02:54, Set: 13:10. Civil Dark: 17:06 - 07:59. Nautical Dark: 17:50 - 07:15. Astro Dark: 18:32 - 06:34

Total Clouds (% Sky Obscured)

100
100
100
39
48
52
52
58
55
57
51
47
52
67
73
66
52
49
27
55
76
88
96
96

Low Clouds (% Sky Obscured)

68
56
50
34
48
49
48
51
49
46
42
31
36
46
56
53
40
32
21
42
68
82
85
90

Medium Clouds (% Sky Obscured)

53
49
54
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2

High Clouds (% Sky Obscured)

100
100
6
3
0
0
0
0
0
1
0
5
10
13
20
13
14
28
10
24
33
13
21
23

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
1
96
100
100
100
100
100
100
100
100
100

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
7
8
9
10
8
7
6
6
5
4
3
2
2
2
2
2
1
2
2
1
1
1

Dew Point (°C)

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

Relative Humidity (%)

90
85
80
74
73
78
84
90
88
90
90
90
90
91
93
91
91
93
93
93
93
93
93
93

Pressure (mb)

1027
1028
1028
1028
1027
1027
1027
1027
1027
1028
1028
1028
1028
1027
1027
1027
1027
1026
1026
1025
1025
1024
1024
1024

Ozone (du)

311
320
330
342
355
345
337
329
327
324
326
327
325
324
321
320
316
313
309
309
309
301
299
300

Sunday 14

Waning Crescent 19%

04:07

13:20

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:41, Set: 16:26, Transit: 12:33. Moon - Rise: 04:07, Set: 13:20. Civil Dark: 17:07 - 08:00. Nautical Dark: 17:50 - 07:16. Astro Dark: 18:32 - 06:35

Total Clouds (% Sky Obscured)

83
81
77
73
82
77
65
62
65
63
50
61
69
66
74
70
76
77
76
79
63
70
62
57

Low Clouds (% Sky Obscured)

83
81
77
73
77
50
65
62
55
54
44
51
53
66
74
70
76
77
76
79
63
70
57
50

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)

10
8
9
10
46
38
40
15
34
6
2
1
2
1
1
0
0
0
0
0
0
0
0
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 (%)

48
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
0
4
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)

10
10
11
11
11
11
10
10
10
10
10
10
11
11
12
12
11
11
12
12
11
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
86
84
84
85
88
91
93
94
93
93
93
93
93
93
93
93
91
91
93
91
91
91
90

Pressure (mb)

1024
1024
1023
1023
1022
1021
1021
1020
1020
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1015
1014
1014
1014

Ozone (du)

299
299
298
299
298
297
297
298
298
298
299
298
297
296
296
295
294
295
295
298
300
302
303
305

Monday 15

Waning Crescent 12%

05:20

13:32

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

Sun - Rise: 08:42, Set: 16:26, Transit: 12:33. Moon - Rise: 05:20, Set: 13:32. Civil Dark: 17:07 - 08:01. Nautical Dark: 17:51 - 07:17. Astro Dark: 18:32 - 06:36

Total Clouds (% Sky Obscured)

61
56
41
31
0
1
25
24
22
38
23
40
38
47
50
52
51
67
84
89
100
100
100
100

Low Clouds (% Sky Obscured)

57
52
38
29
0
0
0
0
0
0
0
27
23
13
9
5
0
9
0
16
1
6
20
25

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
24
22
38
23
35
15
25
50
19
20
20
28
22
88
49
61
94

High Clouds (% Sky Obscured)

0
0
0
0
0
0
10
7
0
15
5
0
12
3
3
19
15
29
61
71
54
99
99
46

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
0
1
0
0
0
0
0
0
0
1
1

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

Chance of Frost

Temperature (°C)

6
6
7
8
8
8
8
7
7
7
7
7
7
6
6
6
6
6
6
7
7
7
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
79
75
74
73
75
78
79
79
79
82
87
90
93
94
93
93
93
93
93
91
90
88
82

Pressure (mb)

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

Ozone (du)

309
322
336
343
343
328
316
314
311
308
305
301
300
300
302
304
307
309
306
306
305
303
302
301

Tuesday 16

Waning Crescent 11%

06:34

13:47

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:42, Set: 16:26, Transit: 12:34. Moon - Rise: 06:34, Set: 13:47. Civil Dark: 17:07 - 08:01. Nautical Dark: 17:51 - 07:18. Astro Dark: 18:32 - 06:36

Total Clouds (% Sky Obscured)

97
93
91
89
86
86
89
94
99
99
99
100
100
100
100
98
96
95
96
96
96
89
83
77

Low Clouds (% Sky Obscured)

21
22
22
26
30
44
64
78
92
90
87
73
85
80
87
88
90
91
89
87
86
81
77
75

Medium Clouds (% Sky Obscured)

87
89
55
87
86
80
88
79
95
97
44
43
39
38
42
45
38
32
39
46
51
34
16
0

High Clouds (% Sky Obscured)

77
17
65
60
65
60
59
70
84
58
33
5
30
63
95
63
32
0
0
0
0
0
0
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 (%)

5
7
4
7
10
5
9
12
4
12
15
10
16
15
21
14
13
10
12
14
11
6
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)

8
9
8
7
7
6
7
5
5
5
5
5
5
5
4
4
4
4
3
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
6
7
7
6
6
6
6
6
6
6
6
6
6
6
6
6
7
6
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

79
75
72
71
74
76
78
81
82
85
85
87
90
88
91
91
91
93
95
96
96
95
96
98

Pressure (mb)

1013
1014
1014
1014
1014
1014
1014
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1020

Ozone (du)

302
302
305
306
308
308
302
301
307
313
308
296
288
286
293
303
314
332
334
331
325
321
319
317

Wednesday 17

Waning Crescent 7%

07:46

14:07

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:43, Set: 16:26, Transit: 12:34. Moon - Rise: 07:46, Set: 14:07. Civil Dark: 17:07 - 08:02. Nautical Dark: 17:51 - 07:18. Astro Dark: 18:33 - 06:37

Total Clouds (% Sky Obscured)

85
92
99
99
100
98
98
100
100
100
100
100
98
96
95
96
97
99
96
93
90
93
97
100

Low Clouds (% Sky Obscured)

73
70
70
66
65
56
55
49
41
44
43
33
32
35
35
36
39
39
45
48
49
62
79
95

Medium Clouds (% Sky Obscured)

0
0
0
12
27
41
46
61
62
66
70
65
63
57
49
52
55
56
39
28
17
15
15
32

High Clouds (% Sky Obscured)

29
61
92
95
97
98
98
100
100
94
87
82
56
31
5
37
67
99
88
76
64
76
88
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 (%)

0
0
0
0
0
0
9
0
0
0
0
0
6
10
16
31
27
18
13
10
8
22
31
40

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

Chance of Frost

Temperature (°C)

7
8
8
9
9
9
9
8
8
8
8
7
7
7
7
7
7
7
7
7
7
7
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
95
93
90
88
91
91
91
87
82
85
90
93
96
96
94
96
94
94
93
93
91
91

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1021
1021
1021
1021
1020
1020
1020
1019
1020
1020

Ozone (du)

315
315
316
316
314
313
312
310
310
308
306
306
306
304
302
299
298
297
296
294
293
291
289
288

Thursday 18

Waning Crescent 3%

08:51

14:36

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:44, Set: 16:27, Transit: 12:35. Moon - Rise: 08:51, Set: 14:36. Civil Dark: 17:08 - 08:03. Nautical Dark: 17:52 - 07:19. Astro Dark: 18:33 - 06:37

Total Clouds (% Sky Obscured)

100
96
93
94
96
98
83
68
55
62
69
71
78
77
80
80
70
60
51
52
48
48
52
62

Low Clouds (% Sky Obscured)

82
65
49
30
17
6
12
18
24
19
15
9
26
42
59
61
59
57
51
52
48
48
52
52

Medium Clouds (% Sky Obscured)

28
37
38
31
20
9
11
15
18
25
29
36
39
28
25
25
25
25
15
14
14
14
15
20

High Clouds (% Sky Obscured)

100
96
93
94
96
98
68
36
4
4
3
0
25
50
70
65
70
60
51
52
48
48
52
37

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

Precipitation Probability (%)

32
22
1
3
2
0
0
0
0
0
0
0
21
35
52
63
72
82
82
78
69
51
32
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.5
0.5
0.5
0.4
0.2
0
0

Wind Speed/Direction (mph)

10
11
11
12
11
10
9
10
11
12
13
14
15
15
15
15
14
14
13
13
13
12
12
12

Chance of Frost

Temperature (°C)

7
8
9
9
9
9
8
8
8
8
8
8
8
8
7
7
7
7
7
7
8
8
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
82
77
70
72
73
74
74
75
75
77
75
77
78
78
79
79
82
85
87
88
90
90
91

Pressure (mb)

1020
1019
1019
1018
1018
1017
1016
1016
1015
1014
1014
1013
1013
1012
1012
1011
1011
1011
1010
1010
1010
1010
1011
1011

Ozone (du)

287
286
286
285
286
286
286
284
282
280
278
277
275
273
271
269
268
267
266
268
270
272
274
276

Friday 19

Waning Crescent 1%

09:45

15:16

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 08:44, Set: 16:27, Transit: 12:35. Moon - Rise: 09:45, Set: 15:16. Civil Dark: 17:08 - 08:03. Nautical Dark: 17:52 - 07:19. Astro Dark: 18:33 - 06:38

Total Clouds (% Sky Obscured)

64
74
79
86
93
100
100
100
100
87
74
61
62
65
70
74
77
81
83
85
87

Low Clouds (% Sky Obscured)

54
52
52
59
68
75
73
69
65
64
60
56
59
63
68
71
74
77
80
82
84

Medium Clouds (% Sky Obscured)

24
32
34
63
79
95
81
72
70
68
71
61
62
63
55
39
22
6
18
27
38

High Clouds (% Sky Obscured)

29
23
17
44
70
98
99
99
100
73
57
55
55
65
70
74
77
80
83
85
87

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

Fog (%)

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

Precipitation Probability (%)

4
4
3
15
20
21
20
21
17
20
21
22
23
22
9
14
6
1
1
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
7
8
8
8
8
8
8
7
7
7
7
7
7
6
6
6
6

Relative Humidity (%)

91
88
85
83
85
88
90
91
93
93
95
95
95
95
93
93
93
93
91
91
91

Pressure (mb)

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

Ozone (du)

278
279
280
281
281
280
280
283
286
290
296
302
308
317
327
336
337
338
338
328
318

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

Generated: 13/12/25 10:22:46. Forecast: 13/12/25 to 19/12/25. Timezone: UTC+1.00