Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 7%

06:36

14:12

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
03 Bad
04 Bad

Sun - Rise: 08:44, Set: 16:31, Transit: 12:38. Moon - Rise: 06:36, Set: 14:12. Civil Dark: 17:11 - 08:04. Nautical Dark: 17:55 - 07:20. Astro Dark: 18:36 - 06:39

Total Clouds (% Sky Obscured)

99
100
98
98
84
91
100
90
96
100
100
99
100
96
97
98
98
100
100
86
89
100
100
100

Low Clouds (% Sky Obscured)

99
90
97
77
83
84
82
64
61
50
69
43
48
29
45
26
31
32
21
6
0
8
26
100

Medium Clouds (% Sky Obscured)

32
26
1
0
0
0
0
0
0
2
55
46
98
95
92
81
96
96
83
86
89
98
68
100

High Clouds (% Sky Obscured)

0
2
8
8
15
65
100
72
86
100
100
97
100
88
85
89
84
100
100
29
46
100
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 (%)

0
0
0
6
1
1
2
1
1
2
2
1
0
0
0
0
0
0
0
0
0
1
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)

6
6
6
5
5
5
4
5
5
7
9
8
6
7
8
10
10
11
11
12
13
14
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
98
98
96
95
95
93
85
80
82
85
87
88
82
85
85
82
81
81
79
75
74

Pressure (mb)

1014
1014
1015
1015
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1014
1014

Ozone (du)

328
323
322
319
317
316
315
311
309
307
306
306
305
303
303
303
301
301
299
301
300
293
289
292

Thursday 18

Waning Crescent 3%

07:48

14:41

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
03 Bad
04 Bad

Sun - Rise: 08:45, Set: 16:31, Transit: 12:38. Moon - Rise: 07:48, Set: 14:41. Civil Dark: 17:12 - 08:04. Nautical Dark: 17:55 - 07:21. Astro Dark: 18:37 - 06:40

Total Clouds (% Sky Obscured)

100
100
98
100
100
100
100
100
100
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
87
92
90
90
90
88
100
100
89
88
64
48
86
90
85
80
79
80
83
90
80
89
80

Medium Clouds (% Sky Obscured)

100
96
90
90
95
53
76
57
57
60
81
71
71
64
76
93
98
100
100
100
95
95
99
100

High Clouds (% Sky Obscured)

100
49
43
100
90
100
100
19
13
3
21
100
100
100
100
100
100
100
100
100
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
9
9
9
5
4
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
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

33
76
76
89
61
35
12
14
31
45
51
39
41
37
30
37
28
47
57
78
95
90
59
61

Precipitation Amount (mm)

0
0.5
0.4
0.6
0.3
0
0
0
0
0.2
0.3
0
0
0
0
0
0
0.2
0.3
0.5
0.7
0.7
0.2
0.2

Wind Speed/Direction (mph)

16
16
16
16
16
16
15
14
14
14
14
15
16
17
18
19
19
19
18
18
18
16
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
70
72
75
78
78
80
81
78
77
73
74
76
72
68
66
63
64
65
73
81
87
87
87

Pressure (mb)

1014
1013
1013
1014
1014
1014
1014
1013
1012
1012
1011
1010
1010
1010
1009
1009
1009
1009
1009
1009
1010
1010
1010
1011

Ozone (du)

295
296
298
299
296
293
289
288
288
287
283
277
277
276
280
278
277
275
273
274
275
279
290
304

Friday 19

Waning Crescent 1%

08:53

15:21

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 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 08:46, Set: 16:32, Transit: 12:39. Moon - Rise: 08:53, Set: 15:21. Civil Dark: 17:12 - 08:05. Nautical Dark: 17:56 - 07:21. Astro Dark: 18:37 - 06:40

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
93
100
100
100
100
100
78
21
33
68
82
87
76
59
67
62
54
54

Low Clouds (% Sky Obscured)

89
86
71
75
74
73
24
0
0
0
11
10
4
4
6
28
41
41
38
56
49
44
36
40

Medium Clouds (% Sky Obscured)

99
97
100
94
100
93
89
85
100
94
80
54
40
11
14
24
41
50
41
7
4
2
0
0

High Clouds (% Sky Obscured)

100
100
89
100
100
100
49
98
84
96
100
100
14
0
2
0
6
25
50
0
13
20
25
35

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

Light Rain
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 (%)

66
51
49
27
13
7
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
7
5
5
5
5
5
5
5
5
5
5
4
5
4
4
4
4
4
4
3

Relative Humidity (%)

87
87
88
87
81
68
69
69
71
69
69
72
77
81
82
84
87
87
88
88
90
90
88
88

Pressure (mb)

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

Ozone (du)

314
316
313
309
313
315
319
324
334
338
336
335
328
323
312
312
308
307
306
300
294
290
290
283

Saturday 20

New Moon 0%

09:46

16:16

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
03 Bad
04 Bad

Sun - Rise: 08:46, Set: 16:32, Transit: 12:39. Moon - Rise: 09:46, Set: 16:16. Civil Dark: 17:13 - 08:06. Nautical Dark: 17:56 - 07:22. Astro Dark: 18:38 - 06:41

Total Clouds (% Sky Obscured)

57
60
73
87
100
99
99
98
99
99
100
100
100
100
100
100
100
97
98
97
94
92
91
94

Low Clouds (% Sky Obscured)

44
47
67
83
96
99
99
98
99
99
100
100
100
100
97
94
92
92
92
93
91
90
88
92

Medium Clouds (% Sky Obscured)

1
4
55
55
50
50
55
60
60
60
60
74
77
88
74
88
88
79
72
89
73
59
45
45

High Clouds (% Sky Obscured)

45
60
60
60
45
30
35
25
10
5
0
0
0
0
0
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
7
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
2
7
29
34
22
44
46
40
25
32
28
23
23
26
25
31
44
34

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
88
89
86
79
75
78
85
90
94
96
98
96
94
93
93
94
96
96
94
96
96

Pressure (mb)

1017
1017
1016
1016
1016
1016
1015
1015
1014
1013
1012
1012
1011
1011
1011
1010
1010
1010
1009
1009
1009
1008
1008
1008

Ozone (du)

284
284
282
284
283
281
280
280
278
277
277
278
280
284
287
289
290
287
285
285
289
286
283
282

Sunday 21

Waxing Crescent 2%

10:27

17:23

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
03 Bad
04 Bad

Sun - Rise: 08:47, Set: 16:32, Transit: 12:40. Moon - Rise: 10:27, Set: 17:23. Civil Dark: 17:13 - 08:06. Nautical Dark: 17:57 - 07:22. Astro Dark: 18:38 - 06:41

Total Clouds (% Sky Obscured)

96
99
97
96
94
96
98
100
97
93
90
87
86
85
86
91
96
96
97
98
97
96
96
85

Low Clouds (% Sky Obscured)

95
98
89
79
69
58
46
38
40
38
40
47
54
57
55
57
59
63
66
66
44
21
1
5

Medium Clouds (% Sky Obscured)

45
45
46
34
25
10
5
24
49
62
82
77
71
72
86
89
90
67
49
34
53
76
96
82

High Clouds (% Sky Obscured)

0
0
22
44
66
77
89
100
83
67
50
44
35
28
50
63
79
77
76
75
65
53
41
39

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
6
8
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 (%)

28
28
14
13
9
25
32
31
37
28
32
22
9
3
8
6
0
4
4
2
10
12
11
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
94
94
94
95
95
95
91
91
88
82
78
74
74
77
78
79
84
85
88
90
90
91

Pressure (mb)

1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1007
1007
1007
1007
1007

Ozone (du)

280
279
283
285
286
290
294
295
296
297
299
299
300
303
305
307
308
309
309
309
309
312
315
318

Monday 22

Waxing Crescent 6%

10:56

18:38

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
03 Bad
04 Bad

Sun - Rise: 08:47, Set: 16:33, Transit: 12:40. Moon - Rise: 10:56, Set: 18:38. Civil Dark: 17:14 - 08:07. Nautical Dark: 17:57 - 07:23. Astro Dark: 18:39 - 06:42

Total Clouds (% Sky Obscured)

76
66
81
90
100
100
100
100
100
99
99
99
99
99
97
95
93
95
97
100
97
95
92
93

Low Clouds (% Sky Obscured)

11
21
32
43
54
54
51
46
44
43
37
36
40
39
41
42
43
47
43
35
39
39
44
54

Medium Clouds (% Sky Obscured)

65
48
60
72
82
69
55
44
41
42
53
41
22
1
1
1
2
10
19
27
24
22
20
19

High Clouds (% Sky Obscured)

42
42
65
82
100
100
100
100
72
44
7
32
62
92
76
60
47
62
78
94
70
46
23
15

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 (%)

4
4
5
4
1
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
85
81
77
74
73
72
74
77
81
81
82
82
82
82
82
83
83
85
83
82
79

Pressure (mb)

1007
1007
1007
1007
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

325
332
339
341
343
345
352
358
364
369
374
379
383
386
390
391
392
393
392
392
391
390
389
388

Tuesday 23

Waxing Crescent 12%

11:18

19:56

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

Sun - Rise: 08:48, Set: 16:34, Transit: 12:41. Moon - Rise: 11:18, Set: 19:56. Civil Dark: 17:14 - 08:07. Nautical Dark: 17:58 - 07:23. Astro Dark: 18:39 - 06:42

Total Clouds (% Sky Obscured)

95
97
97
97
97
98
98
98
98
97
97
98
99
100
98
96
94
85
76
69

Low Clouds (% Sky Obscured)

59
65
66
71
89
90
91
89
87
85
82
90
92
97
97
95
93
83
72
62

Medium Clouds (% Sky Obscured)

17
13
19
25
35
40
45
50
46
45
45
42
38
35
35
32
35
47
56
60

High Clouds (% Sky Obscured)

11
7
12
16
25
20
20
25
30
30
40
45
45
40
40
35
25
24
14
14

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 (%)

0
0
0
0
0
0
0
0
3
3
1
6
7
4
7
8
8
8
6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
80
80
79
79
79
76
75
72
75
75
78
79
80
82
83
88
90
91
90

Pressure (mb)

1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1011
1011
1012
1012
1012

Ozone (du)

388
387
387
388
389
390
392
395
397
400
402
404
405
407
408
410
411
413
413
413

Forecast for Capelle-West, Gemeente Capelle aan den IJssel, Netherlands (51.92,4.57)

Generated: 17/12/25 05:44:06. Forecast: 17/12/25 to 23/12/25. Timezone: UTC+1.00