Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 6%

04:14

18:54

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
10 Good
11 Good
12 Good
13 OK
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:21, 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)

94
86
84
51
57
47
56
66
67
63
60
82
82
84
81
65
51
18
13
11
31
95
52
87

Low Clouds (% Sky Obscured)

77
70
62
47
56
43
44
54
56
56
60
68
73
75
74
57
42
17
0
11
29
28
19
0

Medium Clouds (% Sky Obscured)

25
22
13
7
1
0
0
2
15
6
0
3
4
3
5
5
4
4
4
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
1
1
1
5
5
10
1
6
5
52
52
64
41
31
25
1
12
1
6
95
40
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
14
14
13
14
14
14
14
13

Relative Humidity (%)

70
72
75
80
82
83
85
86
88
89
90
90
90
90
90
92
85
76
68
62
57
54
51
47

Pressure (mb)

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

Ozone (du)

254
254
255
256
256
256
257
256
255
254
254
252
251
250
250
251
250
250
250
251
251
250
251
253

Friday 19

Waning Crescent 2%

05:33

19:07

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

Sun - Rise: 07:23, Set: 19:44, Transit: 13:32. 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)

82
83
93
87
45
46
31
2
30
39
98
66
61
80
77
62
97
32
33
16
66
73
59
100

Low 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
37

Medium Clouds (% Sky Obscured)

0
41
2
2
26
23
18
0
20
28
77
24
61
80
72
57
43
32
33
16
66
73
59
69

High Clouds (% Sky Obscured)

82
83
93
87
12
20
12
2
8
1
91
44
19
0
36
3
94
2
3
4
5
15
9
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
1
20
15
2
0
0
0
0
0
0
0
0
3
55

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)

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

Chance of Frost

Temperature (°C)

25
24
22
21
20
19
19
19
18
17
17
17
17
16
17
17
18
20
22
23
25
25
25
24

Feels Like (°C)

25
25
23
20
20
18
18
18
18
17
17
15
16
15
15
16
16
18
19
21
23
22
22
22

Dew Point (°C)

13
13
15
15
15
14
13
12
12
12
12
12
12
13
12
13
13
12
12
14
13
13
14
19

Relative Humidity (%)

46
51
62
69
70
69
68
66
67
68
70
71
75
78
75
77
72
62
53
55
46
46
50
73

Pressure (mb)

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

Ozone (du)

255
255
254
255
255
255
255
255
255
255
254
255
254
253
253
252
251
251
250
250
250
250
250
252

Saturday 20

Waning Crescent 0%

06:49

19:17

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

Sun - Rise: 07:25, 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
100
100
100
100
100
100
80
93
93
100
92
100
100
100
100
100
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

20
39
79
79
53
46
58
67
84
70
48
53
28
56
54
47
86
70
54
60
67
55
50
47

Medium Clouds (% Sky Obscured)

67
65
61
46
72
47
8
14
55
59
76
2
23
0
0
0
1
0
0
11
14
26
77
80

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
29
0
7
23
76
100
100
100
100
100
100
99
100
100
100
100
100

ISS Passover

Visibility (miles)

9
8
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

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

Precipitation Probability (%)

72
55
73
83
84
9
17
17
0
0
1
0
0
1
5
0
2
1
1
12
7
6
5
3

Precipitation Amount (mm)

0.2
0
0.4
0.5
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
8
11
11
12
11
10
12
13
14
15
14
15
14
14
14
14
16
17
18
18
17
16
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

22
22
20
20
19
19
18
18
17
15
13
13
12
12
11
11
11
11
12
12
12
12
12
12

Dew Point (°C)

20
20
18
18
17
17
17
16
15
12
12
13
12
11
10
10
9
9
8
9
9
9
8
8

Relative Humidity (%)

83
89
84
85
82
84
85
82
78
67
71
82
79
76
70
71
67
63
59
59
59
61
59
59

Pressure (mb)

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

Ozone (du)

252
254
256
255
255
257
259
260
261
262
264
266
266
266
269
270
271
272
274
275
274
274
275
276

Sunday 21

New Moon 1%

08:04

19:26

17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
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

Sun - Rise: 07:26, Set: 19:39, Transit: 13:32. Moon - Rise: 08:04, 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)

95
89
85
83
83
75
57
30
21
43
53
61
63
68
72
74
76
78
77
69
77
68
62
44

Low Clouds (% Sky Obscured)

55
65
68
60
51
46
36
16
15
36
49
61
60
60
61
57
55
51
50
49
51
48
48
42

Medium Clouds (% Sky Obscured)

66
65
53
78
81
29
18
10
2
2
1
0
6
8
12
17
25
31
30
29
25
15
8
0

High Clouds (% Sky Obscured)

92
45
70
65
60
0
0
0
0
0
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
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
8
6
13
17
9
23
14
29
24
27
10
18
18
11
29
31
22
27
26
26
26
29
19

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
11
11
11
11
11
10
11
10
9
8
8
8
8
8
9
10
11
12
14
12
12
11

Dew Point (°C)

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

Relative Humidity (%)

60
61
59
60
63
64
64
72
79
76
70
66
65
63
61
59
63
63
56
46
44
49
51
57

Pressure (mb)

1012
1013
1013
1014
1014
1015
1015
1015
1016
1016
1016
1017
1017
1018
1018
1019
1019
1020
1021
1021
1021
1021
1021
1022

Ozone (du)

278
279
281
285
287
290
290
290
290
290
292
294
294
297
300
304
308
310
312
313
312
313
314
311

Monday 22

Waxing Crescent 3%

09:17

19:35

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

Sun - Rise: 07:28, Set: 19:37, Transit: 13:31. Moon - Rise: 09:17, 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)

50
52
37
24
22
22
19
31
35
22
3
10
32
28
38
77
81
86
87
89
93
93
92
86

Low Clouds (% Sky Obscured)

44
46
37
24
22
22
19
20
15
12
3
7
23
22
30
24
29
35
44
55
59
56
54
53

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
4
14
20
25
25
25

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
18
31
40
29
22
15

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

Precipitation Probability (%)

9
15
1
3
4
5
5
2
3
2
3
3
5
8
9
31
38
43
42
40
31
37
38
37

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
11
10
10
9
10
9
8
9
8
9
9
8
8
9
10
10
11
11
11
12
14
13

Dew Point (°C)

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

Relative Humidity (%)

55
59
59
66
67
67
68
72
69
64
67
73
70
66
71
72
74
75
75
69
62
57
56
55

Pressure (mb)

1022
1022
1022
1023
1023
1023
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1023
1023
1023
1023
1023
1022
1022

Ozone (du)

307
305
303
303
302
302
300
300
298
298
299
300
301
301
302
302
302
302
302
304
305
307
307
307

Tuesday 23

Waxing Crescent 7%

10:31

19:44

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

Sun - Rise: 07:30, Set: 19:35, Transit: 13:31. Moon - Rise: 10:31, 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)

77
75
69
80
86
92
91
87
83
82
62
55
67
77
91
82
76
72
71
78
82
91
96
92

Low Clouds (% Sky Obscured)

51
48
45
36
27
24
24
24
26
17
9
0
23
45
68
62
54
45
43
40
44
56
60
67

Medium Clouds (% Sky Obscured)

20
20
15
10
10
10
10
15
20
25
25
30
35
40
35
35
35
45
45
55
55
60
65
70

High Clouds (% Sky Obscured)

5
10
15
33
45
49
45
51
64
63
62
55
67
77
91
82
76
72
71
78
82
85
90
92

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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

38
35
20
29
33
31
37
36
24
31
33
21
42
43
35
60
75
87
85
83
80
92
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.5
0.5
0.5
0.5
0.6
0.8
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
57
60
61
60
59
58
58
59
60
64
68
72
70
67
65
61
57
54
51
50
47
50
51

Pressure (mb)

1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022

Ozone (du)

307
308
308
308
309
309
310
310
311
311
311
310
309
309
308
307
307
306
306
305
305
305
305
305

Wednesday 24

Waxing Crescent 13%

11:46

19:55

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
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:31, Set: 19:32, Transit: 13:31. Moon - Rise: 11:46, 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)

94
94
95
91
88
86
88
90
92
77
65
55
73
85
95
95
95
94
88
83
78

Low Clouds (% Sky Obscured)

70
75
78
79
80
80
82
84
86
77
65
55
73
85
89
82
74
66
61
55
50

Medium Clouds (% Sky Obscured)

65
60
45
40
35
40
40
40
40
40
45
55
55
55
55
54
53
52
47
47
48

High Clouds (% Sky Obscured)

94
94
95
91
88
86
87
83
84
77
65
55
73
85
95
95
95
94
88
81
76

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

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

Precipitation Probability (%)

95
85
68
78
77
62
63
69
69
70
74
77
73
70
69
64
58
44
43
37
14

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
57
62
65
67
70
72
74
72
74
75
79
80
80
80
80
72
67
62
52
45

Pressure (mb)

1022
1022
1022
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1026
1026
1027
1027
1027

Ozone (du)

306
305
305
304
304
303
303
303
303
303
303
303
302
302
303
303
303
303
303
302
302

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

Generated: 18/09/25 17:06:12. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+2.00