Clear Outside v1.0 - International Weather Forecasts For Astronomers

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 OK
15 OK
16 Bad
17 OK

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)

98
99
100
99
100
100
100
100
100
100
99
100
100
100
100
100
100
100
85
56
35
35
50
47

Low Clouds (% Sky Obscured)

66
53
80
79
47
69
62
81
88
81
73
37
33
33
30
18
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

69
90
92
94
92
95
86
91
91
85
95
91
86
99
97
69
69
55
47
32
11
2
18
26

High Clouds (% Sky Obscured)

83
99
97
87
100
100
100
100
100
96
95
100
100
100
100
100
100
100
58
55
35
35
50
43

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

11
19
30
36
33
52
85
84
57
44
9
5
3
2
2
2
1
1
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.9
0.8
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
17
16
16
16
16
16
16
16
16
16
16
16
16
16
17
17
18
20
21
22
24
24
24

Dew Point (°C)

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

Relative Humidity (%)

80
85
90
92
95
95
96
96
96
98
98
96
95
96
96
95
88
80
70
59
50
46
44
48

Pressure (mb)

1021
1021
1021
1021
1022
1021
1021
1021
1021
1021
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1017
1017
1017
1016

Ozone (du)

286
287
289
291
292
292
293
293
294
295
296
296
296
296
297
297
298
298
299
298
297
295
294
293

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 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: 07:39, 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)

63
73
98
99
100
100
85
80
85
70
77
71
81
91
85
73
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
2
0
0
0
0
0
0
13
4
26
26
29
45

Medium Clouds (% Sky Obscured)

46
64
67
45
12
34
67
76
82
70
74
68
79
67
37
23
52
60
62
62
87
100
97
100

High Clouds (% Sky Obscured)

44
35
95
83
100
100
63
25
27
4
9
25
38
75
70
54
99
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
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
Very Light Rain
None
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
2
13
38
65
63
73

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
16
14
11
10
10
9
9
9
9
9
9
9
10
10
11
10
10
10
11
9
9
10
11

Relative Humidity (%)

55
65
64
58
58
59
59
56
58
57
58
58
57
58
60
60
52
47
46
45
44
44
48
55

Pressure (mb)

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

Ozone (du)

292
290
289
287
286
285
284
283
283
283
282
281
280
279
278
277
276
277
277
277
277
276
277
277

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
100
87
95
99
96
93
92
85
65
68
47

Low Clouds (% Sky Obscured)

38
37
52
81
92
92
94
97
96
94
93
90
87
90
87
82
66
66
86
50
36
51
68
29

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
93
65
49
35
41
61
68
63
98
77
85
86
71
13
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
37
47
45
40
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
8
9
9
9
8
9
9
5
2
3
2
0
3
9
9
9
9
9
9
9
9
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

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

Precipitation Probability (%)

79
80
65
71
92
86
91
95
95
95
95
95
95
87
25
8
9
9
8
13
20
45
45
20

Precipitation Amount (mm)

0.4
0.4
0
0.3
0.6
0.5
0.5
0.5
1.9
1.7
1.8
2.5
1.9
0.6
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
6
6
6
6
5
5
5
5
5
6
7
4
5
6
6
8
9
9
10
10
12
11

Chance of Frost

Temperature (°C)

20
19
19
19
19
18
18
18
18
18
18
18
18
18
18
18
19
19
19
19
20
19
19
19

Feels Like (°C)

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

Dew Point (°C)

14
16
16
16
17
18
18
18
18
18
18
18
18
17
17
17
18
17
15
17
13
12
13
13

Relative Humidity (%)

67
81
82
86
92
95
98
96
96
98
98
98
98
96
95
95
93
88
77
84
66
63
68
70

Pressure (mb)

1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1019
1019
1020
1021
1021
1022
1022
1023
1023
1023
1024
1024

Ozone (du)

277
276
276
276
276
276
275
275
274
274
274
274
273
275
276
278
279
280
282
282
284
286
289
291

Thursday 1

Waning Gibbous 66%

21:04

15:27

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

41
38
31
25
19
30
41
93
96
98
99
88
51
43
32
25
17
22
28
31
48
62
92
88

Low Clouds (% Sky Obscured)

24
21
15
13
10
10
9
10
14
17
17
17
18
18
16
13
11
15
18
23
23
25
24
14

Medium Clouds (% Sky Obscured)

0
0
0
0
0
13
25
38
46
51
58
64
38
22
14
7
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
12
28
87
92
96
99
79
19
6
3
2
2
2
5
5
31
62
92
88

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 (%)

8
3
3
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
77
85
90
90
90
90
90
89
89
89
90
90
92
90
84
75
66
60
55
51
49
48
49

Pressure (mb)

1025
1026
1027
1027
1028
1028
1029
1029
1029
1029
1030
1030
1030
1031
1031
1031
1032
1032
1032
1032
1031
1031
1031
1030

Ozone (du)

294
293
292
292
292
292
293
293
293
294
294
294
294
295
297
295
293
292
292
292
291
292
292
293

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 Bad
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)

78
72
73
70
64
79
99
96
95
97
100
100
100
100
56
65
80
90
94
97
90
82
75
66

Low Clouds (% Sky Obscured)

7
0
3
5
8
9
10
11
11
11
12
12
13
13
0
0
0
7
13
20
23
26
25
22

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
3
3
3
3
22
55
55
56
49
50
35
20
5
3
2
0
1

High Clouds (% Sky Obscured)

78
72
73
70
64
79
98
95
93
95
100
100
100
100
56
65
80
88
90
93
83
75
65
57

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
1
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)

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

Chance of Frost

Temperature (°C)

18
16
15
14
13
12
11
11
10
10
10
10
10
10
10
12
14
16
17
18
20
20
20
20

Feels Like (°C)

19
17
15
14
13
13
12
10
10
9
10
9
9
9
9
10
11
12
13
14
15
19
19
19

Dew Point (°C)

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

Relative Humidity (%)

59
64
68
70
71
73
76
78
78
80
80
80
78
76
77
72
69
64
60
56
52
51
50
49

Pressure (mb)

1030
1030
1031
1031
1031
1031
1031
1031
1030
1030
1030
1029
1029
1029
1029
1030
1030
1031
1030
1030
1030
1029
1029
1029

Ozone (du)

292
292
292
293
293
293
293
293
294
294
294
294
295
296
296
297
298
299
300
300
301
301
302
303

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 OK
04 Good
05 OK
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: 07:46, 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)

57
51
71
89
100
91
82
73
49
25
1
22
42
63
78
89
100
99
98
97
93
88
86
83

Low Clouds (% Sky Obscured)

19
17
15
12
10
9
9
10
8
4
0
7
16
23
39
45
51
41
32
27
28
26
24
22

Medium Clouds (% Sky Obscured)

2
3
21
43
66
65
57
50
32
17
1
7
12
17
26
28
26
28
34
37
43
48
57
53

High Clouds (% Sky Obscured)

50
43
64
84
100
84
68
53
36
19
0
8
16
24
49
76
100
98
95
91
86
82
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
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
1
0
1
1
1
2
2
0
2
5
1
3
5
4
10
9
8
9
7
5
6

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
68
79
80
83
84
87
90
93
95
95
96
96
96
95
89
83
78
68
61
54
52
52
49

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1028
1028
1029
1029
1028
1028
1028
1028
1028

Ozone (du)

302
301
301
301
301
301
304
308
312
309
306
303
303
302
302
303
303
303
303
303
303
303
303
304

Sunday 4

Waning Crescent 31%

00:47

17:19

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

Sun - Rise: 07:48, Set: 19:09, Transit: 13:27. Moon - Rise: 00:47, Set: 17:19. Civil Dark: 19:43 - 07:14. Nautical Dark: 20:22 - 06:35. Astro Dark: 21:02 - 05:55

Total Clouds (% Sky Obscured)

83
79
79
74
74
80
88
100
92
84
75
73
71
69
73
73
73
71
69
67

Low Clouds (% Sky Obscured)

20
18
24
29
32
27
26
28
28
28
32
23
13
5
12
17
20
18
19
24

Medium Clouds (% Sky Obscured)

51
46
41
36
29
26
22
20
20
18
17
22
28
29
28
20
15
10
5
0

High Clouds (% Sky Obscured)

72
72
72
67
67
74
82
100
84
68
50
49
50
51
52
47
45
43
42
41

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 (%)

7
6
5
8
8
10
10
4
5
4
0
0
0
0
0
0
0
0
0
3

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)

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

Chance of Frost

Temperature (°C)

17
16
14
14
14
13
13
13
13
12
12
11
11
11
11
12
14
16
17
18

Feels Like (°C)

18
18
19
14
14
15
14
14
15
11
11
11
11
11
11
11
12
12
13
13

Dew Point (°C)

8
9
10
10
10
10
10
9
9
9
9
8
8
8
8
9
9
9
8
8

Relative Humidity (%)

56
64
74
75
78
79
79
79
77
79
80
81
83
84
85
77
69
63
56
51

Pressure (mb)

1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1028
1028
1028
1028
1027

Ozone (du)

302
300
299
298
297
295
295
295
295
293
292
290
289
288
287
287
286
285
284
284

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

Generated: 28/09/26 18:06:21. Forecast: 28/09/26 to 04/10/26. Timezone: UTC+2.00