Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

02:51

18:54

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:20, Set: 19:47, Transit: 13:33. Moon - Rise: 02:51, Set: 18:54. Civil Dark: 20:21 - 06:46. Nautical Dark: 21:01 - 06:05. Astro Dark: 21:44 - 05:22

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
99
100
100
97
94
88
91
90
63
80
61
87
69
95
46
45
48
52

Low Clouds (% Sky Obscured)

99
100
100
97
100
96
96
95
100
91
89
82
78
84
56
70
41
42
56
43
38
45
48
40

Medium Clouds (% Sky Obscured)

62
50
45
37
47
50
43
42
29
39
36
27
27
22
5
6
11
19
25
4
1
6
1
2

High Clouds (% Sky Obscured)

11
14
10
1
0
1
0
0
0
0
0
1
9
2
1
1
5
67
15
95
7
6
4
10

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
9
12
16
15
30
19
25
27
16
6
0
1
1
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
17
16
15
14
14
14
13
13
14
14
15
16
16
17
17
17
15
14
13
12
11
11
10

Chance of Frost

Temperature (°C)

17
18
18
18
18
18
18
18
18
18
18
18
19
19
20
20
21
20
19
19
18
18
17
17

Feels Like (°C)

15
16
16
16
16
16
16
17
16
17
16
16
17
17
18
18
19
20
18
16
17
16
17
17

Dew Point (°C)

16
16
17
17
17
17
17
17
17
17
17
17
17
17
17
16
16
16
15
15
15
15
15
15

Relative Humidity (%)

93
90
92
93
92
93
93
93
93
93
92
92
91
86
81
77
76
76
76
80
81
82
85
86

Pressure (mb)

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

Ozone (du)

262
263
265
265
265
264
263
260
258
257
257
256
256
255
255
255
255
255
256
257
257
257
256
256

Friday 19

Waning Crescent 6%

04:14

19:07

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

Sun - Rise: 07:21, Set: 19:44, Transit: 13:33. Moon - Rise: 04:14, Set: 19:07. Civil Dark: 20:18 - 06:47. Nautical Dark: 20:59 - 06:07. Astro Dark: 21:41 - 05:24

Total Clouds (% Sky Obscured)

60
77
100
76
81
87
89
61
42
17
23
35
99
98
79
16
26
100
65
88
37
4
27
2

Low Clouds (% Sky Obscured)

41
54
64
65
52
44
29
18
10
4
2
5
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

7
20
14
0
0
1
4
3
3
2
1
0
0
0
0
0
5
2
2
2
2
0
21
1

High Clouds (% Sky Obscured)

10
15
100
27
53
67
70
32
9
2
0
7
99
97
77
6
18
100
64
88
36
2
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
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)

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

Chance of Frost

Temperature (°C)

17
17
16
16
16
16
15
15
16
18
20
21
23
24
25
26
26
25
22
21
19
19
18
18

Feels Like (°C)

16
16
15
15
15
15
14
14
16
17
20
21
23
23
24
24
25
24
22
21
20
19
19
18

Dew Point (°C)

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

Relative Humidity (%)

88
87
90
90
92
92
95
93
86
76
68
63
58
57
53
48
48
53
60
63
66
69
69
65

Pressure (mb)

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

Ozone (du)

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

Saturday 20

Waning Crescent 2%

05:33

19:17

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

Sun - Rise: 07:23, Set: 19:42, Transit: 13:32. Moon - Rise: 05:33, Set: 19:17. Civil Dark: 20:16 - 06:49. Nautical Dark: 20:56 - 06:09. Astro Dark: 21:39 - 05:26

Total Clouds (% Sky Obscured)

39
57
13
52
100
96
95
88
98
62
75
100
100
73
100
53
65
100
100
100
100
100
97
93

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
15
38
77
71
62
69
74
76
70

Medium Clouds (% Sky Obscured)

12
18
2
46
76
57
79
36
38
43
69
97
68
53
74
53
65
82
93
38
34
37
40
68

High Clouds (% Sky Obscured)

28
55
10
8
99
84
95
67
94
33
52
100
100
73
66
53
65
100
100
100
100
100
93
82

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
8
1
6
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
None

Precipitation Probability (%)

0
0
0
2
4
0
0
0
0
1
1
2
4
4
38
77
95
95
90
68
77
91
79
58

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1.4
1.1
0.3
0.3
0.4
0.7
0.4
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
17
17
17
17
17
17
18
20
22
24
25
25
26
26
25
24
23
20
19
19
18
18

Feels Like (°C)

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

Dew Point (°C)

11
11
11
11
11
11
11
12
12
13
12
13
13
13
13
18
23
24
22
19
19
18
17
17

Relative Humidity (%)

62
63
66
67
67
65
67
71
69
62
51
50
45
45
43
60
87
97
95
93
95
95
93
93

Pressure (mb)

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

Ozone (du)

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

Sunday 21

New Moon 0%

06:49

19:26

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:25, Set: 19:39, Transit: 13:32. Moon - Rise: 06:49, Set: 19:26. Civil Dark: 20:13 - 06:51. Nautical Dark: 20:54 - 06:10. Astro Dark: 21:36 - 05:28

Total Clouds (% Sky Obscured)

85
73
82
71
86
93
100
93
86
78
84
92
98
99
100
91
91
91
93
100
98
100
100
100

Low Clouds (% Sky Obscured)

72
59
43
25
29
58
59
59
62
64
69
75
74
74
69
68
58
48
36
35
32
29
35
38

Medium Clouds (% Sky Obscured)

60
28
20
38
29
63
65
64
68
73
79
70
46
48
56
60
59
58
52
96
86
93
95
97

High Clouds (% Sky Obscured)

57
23
73
27
70
85
100
72
40
5
31
62
93
95
98
91
91
91
93
100
98
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
2
3
3
7
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

39
31
22
7
25
93
95
95
95
95
42
22
6
4
4
3
5
6
2
4
4
2
6
12

Precipitation Amount (mm)

0
0
0
0
0
0.6
1.8
1.4
0.7
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
9
11
12
13
14
14
15
16
19
18
19
20
19
17
16
14
12
9
8
7
6
5

Chance of Frost

Temperature (°C)

18
18
17
17
16
16
16
16
16
16
16
17
17
17
17
17
16
15
15
14
14
13
13
13

Feels Like (°C)

18
18
18
16
16
15
14
15
15
15
14
15
13
14
13
12
13
13
12
12
11
12
12
12

Dew Point (°C)

17
17
16
16
15
15
15
15
16
15
15
15
14
12
10
10
9
9
9
9
9
10
9
9

Relative Humidity (%)

93
92
93
95
95
96
96
96
96
93
92
89
81
70
64
64
64
65
69
71
72
79
75
75

Pressure (mb)

1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1010
1011
1011
1012
1013
1013
1013
1014
1014
1014
1014
1014

Ozone (du)

257
258
258
258
259
260
259
262
263
263
263
264
266
268
270
271
272
272
273
273
274
273
273
274

Monday 22

Waxing Crescent 1%

08:04

19:35

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:26, Set: 19:37, Transit: 13:32. Moon - Rise: 08:04, Set: 19:35. Civil Dark: 20:11 - 06:52. Nautical Dark: 20:51 - 06:12. Astro Dark: 21:33 - 05:30

Total Clouds (% Sky Obscured)

100
86
73
56
58
58
63
65
67
76
72
69
67
60
51
49
33
23
13
25
37
49
58
67

Low Clouds (% Sky Obscured)

55
51
45
39
43
40
48
47
49
48
50
52
54
47
44
43
33
23
13
19
26
32
23
14

Medium Clouds (% Sky Obscured)

100
82
60
35
25
25
25
37
49
64
61
62
53
50
48
45
33
23
13
25
37
47
46
46

High Clouds (% Sky Obscured)

100
68
37
5
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8
8
8
8
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
31
25
30
13
8
3
10
11
13
14
20
15
24
27
29
39
47
51
46
37
22
23
23

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
76
80
83
89
90
90
90
87
86
87
86
83
79
73
67
61
70
79
90
90
90
90
87

Pressure (mb)

1014
1014
1014
1014
1014
1014
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1019
1019

Ozone (du)

274
274
275
276
279
281
282
284
287
288
288
289
291
294
295
296
297
300
302
305
307
309
311
311

Tuesday 23

Waxing Crescent 3%

09:17

19:44

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:28, Set: 19:35, Transit: 13:31. Moon - Rise: 09:17, Set: 19:44. Civil Dark: 20:09 - 06:54. Nautical Dark: 20:49 - 06:14. Astro Dark: 21:31 - 05:32

Total Clouds (% Sky Obscured)

75
79
81
85
83
80
74
78
83
89
92
95
99
98
97
96
95
91
89
88
78
70
75
70

Low Clouds (% Sky Obscured)

4
28
44
56
55
57
59
41
24
8
15
22
30
22
14
5
21
36
51
55
53
56
59
63

Medium Clouds (% Sky Obscured)

46
40
35
25
22
22
21
42
59
78
76
76
79
72
66
60
57
52
47
41
40
35
35
35

High Clouds (% Sky Obscured)

0
0
0
0
3
8
14
29
43
55
49
52
66
70
85
95
95
91
89
88
78
70
75
70

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
7
5
6
6
7
8
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

22
19
14
2
8
9
7
19
26
31
37
40
44
39
35
34
44
55
67
87
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.9
1.2
1.5
1.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
10
10
10
10
10
10
9
9
9
10
10
10
11
13
13
14
14
14
13
10
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

86
84
83
80
79
77
76
75
75
75
75
71
68
67
66
66
66
70
75
79
79
80
83
81

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1018
1018
1018
1018
1018
1018

Ozone (du)

311
311
311
312
312
311
311
310
310
309
309
310
312
314
316
318
321
321
322
322
322
321
321
321

Wednesday 24

Waxing Crescent 7%

10:31

19:55

Sun - Rise: 07:30, Set: 19:32, Transit: 13:31. Moon - Rise: 10:31, Set: 19:55. Civil Dark: 20:06 - 06:56. Nautical Dark: 20:46 - 06:16. Astro Dark: 21:28 - 05:34

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 18/09/25 01:50:00. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+2.00