Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

04:14

18:54

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
05 Bad
06 Bad

Sun - Rise: 07:20, Set: 19:47, Transit: 13:33. Moon - Rise: 04:14, Set: 18:54. Civil Dark: 20:21 - 06:47. Nautical Dark: 21:01 - 06:07. Astro Dark: 21:44 - 05:24

Total Clouds (% Sky Obscured)

100
98
100
97
94
88
92
84
90
78
89
96
71
58
47
54
54
68
58
74
80
84
90
82

Low Clouds (% Sky Obscured)

92
93
91
94
85
81
81
80
80
69
79
85
43
45
47
46
49
53
51
64
75
69
75
75

Medium Clouds (% Sky Obscured)

43
52
28
29
40
33
35
25
27
21
21
19
7
7
0
0
4
13
3
0
0
11
0
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
1
1
18
82
39
16
4
15
15
15
15
21
10
21
69
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
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
23
17
6
13
4
1
8
1
2
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)

15
14
14
15
15
15
17
17
18
17
16
14
14
13
12
11
11
10
10
10
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
16
17
17
17
17
17
18
17
18
18
18
17
17
18
16
16
16
16
15
15
15
15

Dew Point (°C)

17
17
17
17
18
18
16
16
16
16
16
15
15
15
15
15
15
15
15
15
15
15
15
15

Relative Humidity (%)

93
92
93
93
92
91
77
77
77
78
78
74
77
78
82
85
85
85
88
89
89
90
90
92

Pressure (mb)

1017
1017
1017
1018
1018
1019
1019
1019
1019
1020
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

262
259
257
257
257
257
257
257
257
256
257
257
259
259
257
257
257
256
256
256
256
257
256
255

Friday 19

Waning Crescent 6%

05:33

19:07

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

Sun - Rise: 07:21, Set: 19:44, Transit: 13:33. Moon - Rise: 05:33, Set: 19:07. Civil Dark: 20:18 - 06:49. Nautical Dark: 20:59 - 06:09. Astro Dark: 21:41 - 05:26

Total Clouds (% Sky Obscured)

79
65
85
54
20
7
64
70
79
73
66
93
85
97
79
87
67
39
8
80
88
83
87
100

Low Clouds (% Sky Obscured)

69
49
24
0
0
0
18
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

2
2
2
2
0
0
0
0
0
0
2
0
0
7
2
56
67
39
2
23
35
75
61
81

High Clouds (% Sky Obscured)

28
35
69
50
17
5
64
70
79
67
56
93
85
97
79
87
0
0
8
80
80
70
87
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
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)

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

Chance of Frost

Temperature (°C)

16
16
16
18
19
21
23
24
25
25
25
25
23
21
20
19
19
18
18
17
17
17
17
17

Feels Like (°C)

15
15
16
16
18
21
23
25
26
25
25
24
23
21
19
19
18
17
16
17
17
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

93
92
85
74
68
62
58
55
51
45
46
51
59
63
67
68
65
61
60
61
63
64
66
65

Pressure (mb)

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

Ozone (du)

256
257
257
256
255
254
253
253
252
253
253
253
253
254
254
254
254
254
253
252
252
252
253
253

Saturday 20

Waning Crescent 2%

06:49

19:17

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
05 Bad
06 Bad

Sun - Rise: 07:23, Set: 19:42, Transit: 13:32. Moon - Rise: 06:49, Set: 19:17. Civil Dark: 20:16 - 06:51. Nautical Dark: 20:56 - 06:10. Astro Dark: 21:39 - 05:28

Total Clouds (% Sky Obscured)

100
82
98
59
58
97
100
100
100
100
100
100
100
100
92
85
97
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
15
15
26
85
70
77
46
27
46
63
62
59
53
47
41
40

Medium Clouds (% Sky Obscured)

51
35
35
49
55
72
96
100
100
65
69
99
75
38
20
11
13
73
20
34
60
33
5
49

High Clouds (% Sky Obscured)

100
57
98
8
17
97
98
100
100
100
100
100
100
100
88
83
91
100
100
100
100
100
92
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
3
1
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
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
5
0
2
1
8
23
70
90
95
95
83
19
1
2
0
1
1
2
2
0
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.4
2.9
2.1
0.7
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
6
7
8
8
10
11
13
16
9
5
5
3
6
5
5
6
8
7
8
8
8
9

Chance of Frost

Temperature (°C)

17
17
18
20
22
24
25
25
24
24
23
22
20
19
19
19
18
17
17
17
16
16
15
15

Feels Like (°C)

15
15
17
19
21
23
24
23
21
20
21
22
20
20
20
19
18
18
18
17
16
16
15
14

Dew Point (°C)

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

Relative Humidity (%)

65
68
67
61
57
53
45
49
49
64
88
91
95
96
96
95
96
96
98
95
93
93
93
93

Pressure (mb)

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

Ozone (du)

253
253
253
251
250
248
248
247
246
247
249
251
251
253
254
255
254
254
255
257
258
257
258
258

Sunday 21

New Moon 0%

No Rise

19:26

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
05 Bad
06 Bad

Sun - Rise: 07:25, Set: 19:39, Transit: 13:32. Moon - Rise: No Rise, Set: 19:26. Civil Dark: 20:13 - 06:52. Nautical Dark: 20:54 - 06:12. Astro Dark: 21:36 - 05:30

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
83
65
51
46
43
40
41
38

Low Clouds (% Sky Obscured)

33
39
48
61
62
63
61
55
42
42
42
40
39
33
21
12
18
24
29
22
23
20
18
20

Medium Clouds (% Sky Obscured)

56
74
87
100
99
98
97
94
91
89
84
49
24
60
15
15
45
49
51
46
43
40
41
38

High Clouds (% Sky Obscured)

100
100
100
100
100
100
98
100
100
100
100
100
100
100
100
100
67
37
5
2
10
10
5
5

ISS Passover

Visibility (miles)

9
9
6
2
0
0
0
7
9
9
9
9
9
9
9
9
9
9
9
9
9
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None

Precipitation Probability (%)

13
65
95
95
95
71
81
29
3
0
1
1
1
2
3
1
4
6
3
9
47
48
30
63

Precipitation Amount (mm)

0
0
0.9
1.1
0.8
0.4
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0

Wind Speed/Direction (mph)

10
9
9
10
11
10
10
13
12
12
11
10
8
7
6
5
5
5
3
3
3
2
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
14
15
16
16
16
16
15
15
14
13
14
13
14
13
12
11
12
12
12
13
13
12

Dew Point (°C)

14
14
15
15
16
16
16
16
14
14
13
12
12
12
11
11
11
11
10
10
10
11
11
11

Relative Humidity (%)

96
96
96
96
98
98
98
95
85
85
79
80
82
86
83
87
89
92
89
89
87
92
93
89

Pressure (mb)

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

Ozone (du)

260
261
260
260
262
263
263
263
265
266
267
268
270
270
271
272
272
271
271
271
271
272
273
274

Monday 22

Waxing Crescent 1%

08:04

19:35

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 OK
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:26, Set: 19:37, Transit: 13:32. Moon - Rise: 08:04, Set: 19:35. Civil Dark: 20:11 - 06:54. Nautical Dark: 20:51 - 06:14. Astro Dark: 21:33 - 05:32

Total Clouds (% Sky Obscured)

40
49
58
64
68
71
77
75
67
78
70
64
59
36
43
60
68
73
78
79
81
85
82
76

Low Clouds (% Sky Obscured)

3
32
40
53
55
57
59
59
56
62
52
43
33
19
26
32
23
33
26
42
49
63
63
63

Medium Clouds (% Sky Obscured)

40
45
40
35
37
32
39
29
21
12
15
16
20
7
12
18
29
42
53
42
30
18
13
10

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
6
9
8
6
3
30
54

ISS Passover

Visibility (miles)

9
5
4
2
3
5
7
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
7
7

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

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

Precipitation Probability (%)

78
86
95
95
54
43
35
27
23
22
10
8
9
17
18
19
22
25
26
33
40
46
43
40

Precipitation Amount (mm)

0.3
0.4
0.9
0.8
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0

Wind Speed/Direction (mph)

2
3
3
4
4
4
5
6
8
10
11
10
9
8
8
7
6
7
7
7
8
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
92
93
93
96
93
92
89
86
83
82
78
80
83
83
84
84
86
87
87
89
89
90
89

Pressure (mb)

1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

274
277
278
280
283
287
288
288
289
290
292
294
294
294
296
298
300
302
303
304
305
306
306
307

Tuesday 23

Waxing Crescent 3%

09:17

19:44

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
05 Bad
06 Bad

Sun - Rise: 07:28, Set: 19:35, Transit: 13:31. Moon - Rise: 09:17, Set: 19:44. Civil Dark: 20:09 - 06:56. Nautical Dark: 20:49 - 06:16. Astro Dark: 21:31 - 05:34

Total Clouds (% Sky Obscured)

72
77
83
90
92
96
100
100
100
100
100
100
100
91
84
79
79
85
88
93
96
91
91
86

Low Clouds (% Sky Obscured)

63
61
61
52
55
58
57
44
31
18
31
42
54
53
51
50
47
44
49
59
61
67
72
81

Medium Clouds (% Sky Obscured)

6
6
7
8
7
8
8
16
22
32
57
80
100
84
68
60
61
69
70
69
69
71
66
60

High Clouds (% Sky Obscured)

72
47
23
1
22
49
76
84
94
100
99
98
99
91
84
79
79
85
88
85
90
91
91
86

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

38
36
33
29
27
26
26
24
21
19
42
59
72
89
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
0.9
1.3
1.5
1.5
1.6
2.1
1.8
0.8
0.8
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
87
86
84
84
81
79
78
73
67
62
68
75
81
83
83
84
82
81
80
81
80
80
81

Pressure (mb)

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

Ozone (du)

307
308
308
308
309
308
307
306
306
307
307
309
310
312
316
319
322
324
325
326
326
326
325
323

Wednesday 24

Waxing Crescent 7%

10:31

19:55

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

Sun - Rise: 07:30, Set: 19:32, Transit: 13:31. Moon - Rise: 10:31, Set: 19:55. Civil Dark: 20:06 - 06:58. Nautical Dark: 20:46 - 06:18. Astro Dark: 21:28 - 05:36

Total Clouds (% Sky Obscured)

77
61
57
57
60
59
62
56
54
53
67
75
82
72
62
49
47
48
48

Low Clouds (% Sky Obscured)

77
61
57
57
60
59
62
56
54
53
63
72
78
72
62
49
47
48
48

Medium Clouds (% Sky Obscured)

45
43
41
48
51
55
59
53
51
53
55
55
55
36
18
0
0
0
0

High Clouds (% Sky Obscured)

77
61
57
57
60
59
62
56
54
53
67
75
82
63
32
0
0
0
0

ISS Passover

Visibility (miles)

8
7
7
8
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

Precipitation Type

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

Precipitation Probability (%)

95
74
55
32
31
29
26
23
21
18
22
23
22
25
25
9
16
16
10

Precipitation Amount (mm)

0.8
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
77
69
61
55
50
45
50
55
60
65
70
77
76
74
74
76
78

Pressure (mb)

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

Ozone (du)

321
318
318
317
316
315
313
311
310
308
306
305
303
302
300
299
297
297
297

Forecast for Katwoude, Gemeente Waterland, Netherlands (52.47,5.07)

Generated: 18/09/25 06:32:44. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+2.00