Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 25

Waxing Gibbous 99%

19:05

07:09

22 Good
23 Good
00 OK
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

Sun - Rise: 07:32, Set: 19:28, Transit: 13:30. Moon - Rise: 19:05, Set: 07:09. Civil Dark: 20:02 - 06:59. Nautical Dark: 20:41 - 06:19. Astro Dark: 21:22 - 05:38

Total Clouds (% Sky Obscured)

0
12
32
77
90
97
95
100
71
65
72
100
100
96
98
100
98
98
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
12
4
15
22
17
7
15
17
19
16
4
24
63
61
60
42
37
33
22
19
15
18
21

Medium Clouds (% Sky Obscured)

0
12
10
25
38
40
36
39
39
33
58
99
99
73
88
98
93
94
88
75
55
52
75
83

High Clouds (% Sky Obscured)

0
12
32
40
40
88
93
100
23
49
21
38
64
54
82
99
88
89
89
100
100
99
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
3
9
4
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
1
1
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
3
2
2
3
4
6
6
7
8
9
9
8
8
8
8
8
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
60
61
60
60
60
62
66
69
81
92
89
82
73
66
61
57
54
52
53
58
66
72
76

Pressure (mb)

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

Ozone (du)

293
292
291
289
288
285
283
282
282
282
282
284
287
290
290
290
291
292
293
292
292
293
293
292

Saturday 26

Full Moon 100%

19:18

08:30

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 OK
13 OK
14 OK
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:34, Set: 19:26, Transit: 13:30. Moon - Rise: 19:18, Set: 08:30. Civil Dark: 19:59 - 07:01. Nautical Dark: 20:39 - 06:21. Astro Dark: 21:20 - 05:40

Total Clouds (% Sky Obscured)

100
100
99
91
87
90
91
90
82
77
65
69
77
87
40
47
35
78
90
80
100
100
100
100

Low Clouds (% Sky Obscured)

21
11
12
16
22
28
34
30
33
31
27
24
25
0
0
0
1
0
0
0
1
39
55
18

Medium Clouds (% Sky Obscured)

75
70
90
75
57
63
57
60
32
25
13
2
2
1
8
10
2
21
58
64
69
82
88
81

High Clouds (% Sky Obscured)

100
99
94
72
64
62
53
43
31
25
24
41
52
87
40
47
34
61
87
29
100
67
100
99

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
2
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)

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

Chance of Frost

Temperature (°C)

14
14
14
14
14
13
13
13
13
12
12
13
14
16
18
20
21
22
23
23
22
21
19
19

Feels Like (°C)

13
13
13
13
13
12
12
12
11
11
11
12
13
15
16
19
20
22
23
22
22
20
19
17

Dew Point (°C)

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

Relative Humidity (%)

79
83
86
86
86
86
87
90
87
89
86
76
64
57
51
48
46
47
47
48
56
61
58
58

Pressure (mb)

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

Ozone (du)

291
291
291
291
290
290
290
290
291
291
291
291
291
291
293
292
291
289
286
286
286
286
285
285

Sunday 27

Waning Gibbous 98%

19:33

09:55

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
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:36, Set: 19:23, Transit: 13:30. Moon - Rise: 19:33, Set: 09:55. Civil Dark: 19:57 - 07:02. Nautical Dark: 20:36 - 06:23. Astro Dark: 21:17 - 05:42

Total Clouds (% Sky Obscured)

98
97
100
95
85
100
100
100
100
100
100
100
100
100
97
89
100
100
100
100
90
100
100
99

Low Clouds (% Sky Obscured)

53
44
65
76
64
74
31
24
22
26
35
27
22
26
28
20
27
58
85
87
43
23
26
25

Medium Clouds (% Sky Obscured)

87
91
85
82
76
76
100
85
92
76
79
84
90
71
81
53
70
68
96
76
72
40
52
65

High Clouds (% Sky Obscured)

85
60
98
49
41
78
100
100
100
100
100
100
100
99
29
37
100
100
100
100
61
99
98
97

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
13
5
1
2
14
15
14
15
10
7
8
0
0
0
0
1
6
23
17
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
58
60
67
69
66
67
74
81
82
83
78
73
67
62
58
56
54
57
65
69
76
83
85

Pressure (mb)

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

Ozone (du)

283
283
282
281
281
282
283
283
283
283
284
283
284
284
285
286
286
285
286
288
288
287
286
286

Monday 28

Waning Gibbous 93%

19:53

11:23

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
18 Bad
19 OK
20 OK
21 OK

Sun - Rise: 07:37, Set: 19:21, Transit: 13:29. Moon - Rise: 19:53, Set: 11:23. Civil Dark: 19:54 - 07:04. Nautical Dark: 20:34 - 06:24. Astro Dark: 21:14 - 05:44

Total Clouds (% Sky Obscured)

99
99
99
99
99
100
100
98
96
93
75
87
100
97
95
92
91
90
89
70
49
30
23
24

Low Clouds (% Sky Obscured)

28
82
81
27
36
45
35
26
21
19
15
8
0
0
0
0
0
0
0
0
3
2
0
0

Medium Clouds (% Sky Obscured)

87
87
90
88
94
97
100
89
78
65
35
48
99
88
75
86
47
28
54
53
49
30
23
24

High Clouds (% Sky Obscured)

95
94
94
95
94
94
92
91
88
85
56
73
94
91
87
82
85
84
85
65
48
25
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
2
1
5
8
11
13
11
7
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)

5
5
5
6
5
6
6
7
7
7
8
8
10
11
11
10
9
11
10
9
9
8
7
7

Chance of Frost

Temperature (°C)

17
16
17
17
17
17
17
17
17
16
16
18
20
21
23
25
26
27
27
27
26
24
23
21

Feels Like (°C)

17
17
17
17
17
17
17
17
17
16
16
19
19
20
22
24
25
25
26
27
24
23
22
21

Dew Point (°C)

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

Relative Humidity (%)

85
86
82
82
86
85
85
86
87
89
89
82
72
61
54
52
51
44
42
46
46
52
54
59

Pressure (mb)

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

Ozone (du)

286
287
288
289
289
289
289
290
291
292
293
294
294
293
292
292
291
290
290
290
289
290
292
290

Tuesday 29

Waning Gibbous 86%

20:22

12:52

22 Good
23 OK
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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:39, Set: 19:19, Transit: 13:29. Moon - Rise: 20:22, Set: 12:52. Civil Dark: 19:52 - 07:06. Nautical Dark: 20:32 - 06:26. Astro Dark: 21:12 - 05:46

Total Clouds (% Sky Obscured)

8
30
35
35
51
66
84
89
94
67
83
99
99
98
100
100
99
98
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
16
0
9
17
0
10
13
11
10
10
9
17
27
39
61
74

Medium Clouds (% Sky Obscured)

8
30
3
3
12
21
29
29
37
33
39
40
44
77
73
100
96
92
88
92
96
100
98
96

High Clouds (% Sky Obscured)

1
15
20
20
28
36
43
63
80
66
74
97
98
91
97
97
94
92
92
91
86
67
78
89

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
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

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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
7
6
22
32
38
57
66

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
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
12
12
12
12
12
12
12
12
11
9
9
10
10
10
11
13
14
15
16
17
18
19
19

Relative Humidity (%)

61
62
62
65
67
66
70
72
72
65
58
54
50
46
45
44
48
51
54
57
66
78
91
91

Pressure (mb)

1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017

Ozone (du)

286
285
284
283
281
280
279
277
276
275
274
274
274
273
273
272
272
272
273
274
274
274
274
274

Wednesday 30

Waning Gibbous 77%

21:04

14:17

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
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:41, Set: 19:16, Transit: 13:29. Moon - Rise: 21:04, Set: 14:17. Civil Dark: 19:50 - 07:07. Nautical Dark: 20:29 - 06:28. Astro Dark: 21:09 - 05:48

Total Clouds (% Sky Obscured)

100
95
91
90
93
95
95
97
97
97
95
94
94
93
93
94
95
93
82
73
65
46
51
57

Low Clouds (% Sky Obscured)

84
94
90
85
57
31
10
9
8
6
12
19
24
27
30
33
46
51
54
48
38
31
33
28

Medium Clouds (% Sky Obscured)

94
93
91
90
83
77
75
64
54
45
34
26
20
21
30
35
43
55
67
63
59
46
50
50

High Clouds (% Sky Obscured)

100
90
79
76
84
88
91
94
97
97
95
90
88
80
70
41
48
54
59
41
24
11
22
38

ISS Passover

Visibility (miles)

6
4
6
8
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
Light Rain
Very Light Rain
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

Precipitation Probability (%)

69
73
70
59
51
36
8
13
15
7
15
22
9
27
41
37
83
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.3
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.9
2.1
2
1.5
1.1
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
21
21
21
21
17
17
16
17
16
16
14
15
16
16
16
17
21
20
18
19
19
20
16

Dew Point (°C)

19
19
19
18
17
17
16
15
15
14
14
14
14
14
13
12
11
10
9
8
9
10
11
12

Relative Humidity (%)

93
96
95
95
95
95
93
93
95
93
93
87
81
76
67
59
51
50
49
48
55
63
72
75

Pressure (mb)

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

Ozone (du)

275
275
276
277
278
279
280
281
282
282
283
285
286
288
290
291
293
295
297
299
301
302
303
303

Thursday 1

Waning Gibbous 66%

22:04

15:27

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
18 Bad
19 OK

Sun - Rise: 07:42, Set: 19:14, Transit: 13:28. Moon - Rise: 22:04, Set: 15:27. Civil Dark: 19:48 - 07:09. Nautical Dark: 20:27 - 06:30. Astro Dark: 21:07 - 05:49

Total Clouds (% Sky Obscured)

62
70
73
82
82
81
77
80
86
88
91
94
100
98
96
94
84
72
58
51
50
40

Low Clouds (% Sky Obscured)

29
20
18
11
17
16
23
23
33
28
32
32
32
32
30
30
27
23
20
13
6
0

Medium Clouds (% Sky Obscured)

35
15
10
10
11
8
14
22
26
20
23
21
19
16
12
7
8
5
3
11
22
30

High Clouds (% Sky Obscured)

48
58
66
78
76
69
65
70
78
86
91
94
100
92
86
84
78
72
58
51
50
40

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

Fog (%)

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

Precipitation Probability (%)

95
95
75
57
51
55
62
58
51
35
25
12
4
7
6
4
9
8
3
4
3
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
85
82
79
76
78
80
82
84
84
87
82
75
72
63
55
49
49
48
48
56
64

Pressure (mb)

1021
1022
1022
1022
1022
1022
1023
1023
1023
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1027
1027

Ozone (du)

302
301
300
298
297
296
295
294
293
293
293
293
293
293
293
293
293
294
294
295
295
296

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

Generated: 25/09/26 22:13:52. Forecast: 25/09/26 to 01/10/26. Timezone: UTC+2.00