Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 27

Waning Gibbous 98%

19:18

09:55

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
17 Bad

Sun - Rise: 07:36, Set: 19:26, Transit: 13:30. Moon - Rise: 19:18, Set: 09:55. Civil Dark: 19:59 - 07:02. Nautical Dark: 20:39 - 06:23. Astro Dark: 21:20 - 05:42

Total Clouds (% Sky Obscured)

95
96
97
100
97
100
100
100
99
99
99
98
88
92
100
100
99
98
100
99
99
100
100
100

Low Clouds (% Sky Obscured)

6
18
17
11
0
32
53
67
22
22
30
30
32
34
44
43
62
58
55
83
84
46
61
36

Medium Clouds (% Sky Obscured)

15
5
65
66
47
76
67
39
74
63
58
61
70
58
82
90
92
69
78
94
88
88
95
73

High Clouds (% Sky Obscured)

95
96
97
100
94
100
100
100
96
97
89
82
62
53
100
100
92
93
100
92
92
100
95
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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
1
0
0
2
2
2
3
4
4
2
17
15
0
2
3
10
28
35

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
20
18
17
16
16
16
16
16
15
15
15
15
15
15
16
17
18
19
20
21
21
21
20

Feels Like (°C)

21
19
17
16
16
15
15
15
15
15
15
15
15
15
14
16
17
19
20
20
21
21
20
19

Dew Point (°C)

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

Relative Humidity (%)

56
63
66
67
69
69
65
71
75
87
93
93
96
95
96
96
89
85
77
68
71
73
69
72

Pressure (mb)

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

Ozone (du)

284
283
282
281
280
279
279
281
282
283
283
283
282
282
282
285
285
285
284
285
286
287
287
287

Monday 28

Waning Gibbous 93%

19:33

11:23

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
17 Bad

Sun - Rise: 07:37, Set: 19:23, Transit: 13:29. Moon - Rise: 19:33, Set: 11:23. Civil Dark: 19:57 - 07:04. Nautical Dark: 20:36 - 06:24. Astro Dark: 21:17 - 05:44

Total Clouds (% Sky Obscured)

100
100
97
100
100
100
100
100
100
100
100
100
99
100
99
100
89
95
100
96
100
90
83
88

Low Clouds (% Sky Obscured)

23
66
67
68
67
18
28
21
17
18
22
19
14
7
0
0
0
0
0
0
0
1
0
0

Medium Clouds (% Sky Obscured)

100
100
90
100
95
91
94
68
58
69
77
95
96
75
97
59
57
29
9
45
73
83
83
86

High Clouds (% Sky Obscured)

100
100
83
100
100
100
100
100
100
100
100
100
97
100
99
100
80
87
100
93
100
87
57
73

ISS Passover

Visibility (miles)

9
9
9
9
9
6
7
6
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
Light Rain
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

26
19
14
37
57
53
72
49
32
15
4
1
5
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.4
0
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
18
17
17
17
17
17
17
16
16
16
16
16
16
17
18
20
22
24
25
25
26
26

Feels Like (°C)

17
16
16
16
16
16
16
15
15
14
15
15
15
15
15
16
18
20
21
23
25
24
25
26

Dew Point (°C)

15
15
15
14
15
16
16
16
16
16
16
15
15
15
15
16
16
15
14
14
14
14
15
16

Relative Humidity (%)

76
80
82
82
86
92
95
95
96
96
96
95
93
95
93
90
85
74
62
56
52
50
51
56

Pressure (mb)

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

Ozone (du)

288
289
290
290
290
291
292
293
293
292
292
293
295
295
296
297
297
297
294
293
292
290
289
288

Tuesday 29

Waning Gibbous 86%

19:53

12:52

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

Sun - Rise: 07:39, Set: 19:21, Transit: 13:29. Moon - Rise: 19:53, Set: 12:52. Civil Dark: 19:54 - 07:06. Nautical Dark: 20:34 - 06:26. Astro Dark: 21:14 - 05:46

Total Clouds (% Sky Obscured)

83
65
69
77
74
92
71
73
45
71
80
76
83
88
86
69
76
89
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
55
54
3
1
18
7
0
33
28
21
0
0
0
5
30
21
55
55
63

Medium Clouds (% Sky Obscured)

82
64
69
77
74
82
71
39
45
43
55
52
68
63
79
38
74
73
80
100
100
100
100
100

High Clouds (% Sky Obscured)

44
35
31
15
14
70
23
20
2
25
30
20
27
68
47
51
62
78
100
100
100
100
100
97

ISS Passover

Visibility (miles)

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

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
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
2
2
0
16
18
16
46
79
92

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
0.5
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
15
14
14
14
13
11
11
11
10
9
8
8
9
9
9
10
11
12
14
16
17
20
21

Relative Humidity (%)

61
62
63
64
67
65
59
58
62
61
58
55
55
55
55
54
51
50
49
51
58
63
80
92

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

288
289
290
292
289
288
286
286
284
282
280
280
279
276
275
274
274
273
273
272
271
272
271
271

Wednesday 30

Waning Gibbous 77%

20:22

14:17

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
17 Bad

Sun - Rise: 07:41, Set: 19:19, Transit: 13:29. Moon - Rise: 20:22, Set: 14:17. Civil Dark: 19:52 - 07:07. Nautical Dark: 20:32 - 06:28. Astro Dark: 21:12 - 05:48

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
97
100
100
100
95
96
77
88
75
77
72

Low Clouds (% Sky Obscured)

70
80
37
36
80
65
94
92
87
83
80
51
31
39
83
53
80
38
67
46
54
26
22
12

Medium Clouds (% Sky Obscured)

100
99
100
100
99
100
100
100
100
100
100
61
63
95
60
97
96
87
74
46
50
50
45
41

High Clouds (% Sky Obscured)

95
93
96
98
100
100
100
100
100
100
100
100
100
78
69
63
61
67
64
67
79
75
77
72

ISS Passover

Visibility (miles)

4
7
9
9
9
9
9
9
7
3
6
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
Light Rain
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

Precipitation Probability (%)

83
47
38
58
90
95
95
95
95
72
35
25
15
3
2
3
6
4
3
1
4
5
1
8

Precipitation Amount (mm)

0.6
0
0
0
0.4
0.7
0.6
0.6
1.1
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

22
21
20
19
19
19
19
19
19
19
18
18
17
16
16
17
18
18
18
18
19
18
18
18

Dew Point (°C)

21
20
19
19
18
18
18
18
18
18
17
17
16
16
16
16
16
17
15
12
10
10
9
10

Relative Humidity (%)

95
95
93
93
93
93
96
98
96
98
96
93
95
93
93
90
89
92
75
62
54
55
53
56

Pressure (mb)

1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1020
1020
1021
1022
1023
1023
1024
1024
1024
1025
1025
1026

Ozone (du)

270
270
271
271
271
271
272
271
271
272
274
276
277
277
277
278
280
282
285
293
297
289
287
284

Thursday 1

Waning Gibbous 66%

21:04

15:27

18 Bad
19 Bad
20 Bad
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
10 Bad
11 Bad
12 OK
13 OK
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:42, Set: 19:16, Transit: 13:28. Moon - Rise: 21:04, Set: 15:27. Civil Dark: 19:50 - 07:09. Nautical Dark: 20:29 - 06:30. Astro Dark: 21:09 - 05:49

Total Clouds (% Sky Obscured)

90
75
77
41
41
63
65
66
74
77
80
84
88
92
66
59
58
54
45
37
53
71
89
81

Low Clouds (% Sky Obscured)

7
2
3
5
6
10
15
19
21
24
26
29
31
34
13
9
5
10
15
20
22
24
23
20

Medium Clouds (% Sky Obscured)

38
34
27
19
10
7
12
45
43
18
3
1
0
25
30
31
37
24
12
0
7
14
20
14

High Clouds (% Sky Obscured)

90
75
68
28
9
25
28
21
45
54
65
75
75
80
64
58
54
46
35
24
43
63
83
75

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 (%)

6
5
8
10
2
4
0
0
0
1
0
0
0
0
0
0
0
3
2
0
2
1
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
17
16
15
16
15
13
12
12
11
11
11
11
11
11
11
12
13
13
14
15
22
21
21

Dew Point (°C)

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

Relative Humidity (%)

63
72
78
82
84
84
86
86
86
86
86
87
87
86
86
79
72
66
60
56
51
49
48
45

Pressure (mb)

1026
1027
1027
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030

Ozone (du)

284
284
284
283
283
284
283
283
284
284
284
285
286
287
287
289
290
291
291
290
290
290
290
291

Friday 2

Waning Gibbous 54%

22:04

16:19

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 OK
17 Bad

Sun - Rise: 07:44, Set: 19:14, Transit: 13:28. Moon - Rise: 22:04, Set: 16:19. Civil Dark: 19:48 - 07:11. Nautical Dark: 20:27 - 06:31. Astro Dark: 21:07 - 05:51

Total Clouds (% Sky Obscured)

73
66
67
69
69
70
71
71
76
81
86
84
87
90
87
82
75
81
82
83
70
53
38
53

Low Clouds (% Sky Obscured)

18
16
16
15
15
11
10
8
9
8
9
8
7
6
5
3
0
0
0
0
6
11
15
14

Medium Clouds (% Sky Obscured)

7
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)

67
60
59
58
56
55
56
57
63
66
62
65
70
76
66
59
53
65
73
80
60
36
13
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 (%)

1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
22
22
15
14
14
13
13
12
11
11
11
11
11
11
10
11
12
13
14
14
21
21
21

Dew Point (°C)

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

Relative Humidity (%)

52
58
66
69
73
76
77
81
83
84
86
88
88
91
93
84
78
72
65
60
56
57
58
60

Pressure (mb)

1030
1031
1031
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1029
1029
1029
1029
1028
1027
1027
1026
1025
1025

Ozone (du)

291
292
293
293
294
295
295
294
294
294
294
294
295
295
295
295
295
296
295
295
295
295
295
294

Saturday 3

Third Quarter 42%

23:21

16:55

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: 07:46, Set: 19:12, Transit: 13:28. Moon - Rise: 23:21, Set: 16:55. Civil Dark: 19:45 - 07:12. Nautical Dark: 20:24 - 06:33. Astro Dark: 21:05 - 05:53

Total Clouds (% Sky Obscured)

69
84
88
90
95
87
80
73
66
60
54
68
82
97
98
99
100
100
99
99

Low Clouds (% Sky Obscured)

14
14
14
13
11
10
11
14
18
23
31
33
31
33
29
22
16
14
14
17

Medium Clouds (% Sky Obscured)

0
0
7
14
19
20
19
19
14
7
0
7
14
19
29
39
49
53
57
64

High Clouds (% Sky Obscured)

54
78
83
87
93
76
63
53
47
40
32
52
73
94
96
98
100
99
97
96

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
0
0
0
3
8
10
10
13
12
10
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)

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

Chance of Frost

Temperature (°C)

20
19
17
17
16
16
15
15
15
14
14
14
14
14
13
15
16
18
19
20

Feels Like (°C)

21
22
22
17
17
18
17
16
16
14
14
14
14
14
15
12
12
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

67
75
83
83
85
86
86
83
82
78
74
71
70
69
69
63
58
53
49
46

Pressure (mb)

1024
1024
1024
1024
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1022
1021
1021

Ozone (du)

294
294
293
293
293
293
294
294
294
293
293
293
293
293
293
293
293
293
293
293

Forecast for Utrecht, Gemeente Utrecht, Netherlands (52.09,5.12)

Generated: 27/09/26 17:45:30. Forecast: 27/09/26 to 03/10/26. Timezone: UTC+2.00