Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 25

Waxing Gibbous 99%

18:54

07:09

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

Sun - Rise: 07:32, Set: 19:30, Transit: 13:31. Moon - Rise: 18:54, Set: 07:09. Civil Dark: 20:04 - 06:59. Nautical Dark: 20:44 - 06:19. Astro Dark: 21:25 - 05:38

Total Clouds (% Sky Obscured)

83
81
71
6
2
1
2
3
0
0
0
0
0
0
0
12
18
58
100
100
82
85
65
91

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
0
5
0
0
23

Medium Clouds (% Sky Obscured)

2
0
2
2
2
0
0
0
0
0
0
0
0
0
0
12
17
45
51
45
50
43
48
56

High Clouds (% Sky Obscured)

37
51
6
4
0
1
2
3
0
0
0
0
0
0
0
0
1
29
100
100
55
69
45
31

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)

4
5
6
6
7
8
7
7
7
6
4
3
3
3
4
4
5
4
4
2
2
2
3
4

Chance of Frost

Temperature (°C)

9
10
13
15
18
19
21
21
22
22
21
20
17
16
15
14
14
13
13
13
13
13
13
13

Feels Like (°C)

7
10
11
14
17
19
20
20
21
22
23
21
19
16
16
14
14
13
12
12
12
11
11
13

Dew Point (°C)

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

Relative Humidity (%)

80
72
61
53
48
44
43
41
41
42
51
57
61
61
60
60
61
61
60
59
60
61
61
64

Pressure (mb)

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

Ozone (du)

284
283
282
282
283
284
283
285
286
287
287
288
288
289
290
290
290
288
287
285
283
283
281
281

Saturday 26

Full Moon 100%

19:05

No Set

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:34, Set: 19:28, Transit: 13:30. Moon - Rise: 19:05, Set: No Set. Civil Dark: 20:02 - 07:01. Nautical Dark: 20:41 - 06:21. Astro Dark: 21:22 - 05:40

Total Clouds (% Sky Obscured)

100
99
99
91
100
100
73
88
77
79
100
97
88
99
100
100
96
100
100
100
80
85
100
78

Low Clouds (% Sky Obscured)

19
31
29
32
52
69
73
74
41
27
23
35
38
50
51
49
24
18
12
11
22
28
23
13

Medium Clouds (% Sky Obscured)

100
97
96
47
63
48
33
28
25
26
18
20
7
0
13
53
43
45
74
64
43
49
54
23

High Clouds (% Sky Obscured)

35
20
61
79
99
100
42
74
57
74
100
95
88
84
100
100
93
100
100
99
60
57
100
54

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 (%)

7
15
7
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
68
72
71
64
61
60
66
65
63
66
74
82
84
82
81
84
87
90
92
92
93
93
95

Pressure (mb)

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

Ozone (du)

282
283
286
288
290
292
294
294
295
295
296
296
295
294
293
293
293
294
294
293
291
290
289
290

Sunday 27

Waning Gibbous 98%

19:18

08:30

08 Bad
09 Bad
10 Bad
11 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
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

Sun - Rise: 07:36, Set: 19:26, Transit: 13:30. Moon - Rise: 19:18, Set: 08:30. Civil Dark: 19:59 - 07:02. Nautical Dark: 20:39 - 06:23. Astro Dark: 21:20 - 05:42

Total Clouds (% Sky Obscured)

67
93
77
42
19
49
96
100
100
100
100
100
100
100
86
52
50
71
79
87
95
93
92
90

Low Clouds (% Sky Obscured)

15
17
0
4
0
0
0
0
0
0
1
16
0
3
10
2
3
0
11
31
11
10
6
1

Medium Clouds (% Sky Obscured)

26
50
76
22
16
38
57
57
58
43
75
74
54
60
37
26
50
37
75
73
80
88
85
80

High Clouds (% Sky Obscured)

25
28
30
15
19
23
93
79
95
100
100
92
99
100
74
39
50
58
57
47
41
53
62
85

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
2
16
4
12
12
14
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)

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

Chance of Frost

Temperature (°C)

11
12
14
16
18
19
20
21
21
21
21
19
18
17
17
16
16
15
15
15
15
16
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
86
74
64
54
48
45
46
46
46
55
59
57
61
62
60
63
62
63
69
66
66
70
66

Pressure (mb)

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

Ozone (du)

290
291
292
292
292
292
291
292
290
290
288
287
286
286
286
286
286
285
286
286
286
285
283
283

Monday 28

Waning Gibbous 93%

19:33

09:55

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:37, Set: 19:23, Transit: 13:30. Moon - Rise: 19:33, Set: 09:55. Civil Dark: 19:57 - 07:04. Nautical Dark: 20:36 - 06:24. Astro Dark: 21:17 - 05:44

Total Clouds (% Sky Obscured)

94
97
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
97
97
97
98
99
99
100

Low Clouds (% Sky Obscured)

4
5
7
9
9
13
15
36
21
15
22
45
10
8
34
14
0
14
4
7
11
27
11
10

Medium Clouds (% Sky Obscured)

77
70
78
58
30
47
75
84
91
92
93
94
95
93
93
63
35
39
35
39
39
38
15
5

High Clouds (% Sky Obscured)

88
95
100
100
100
100
100
100
100
100
100
100
100
100
100
97
94
90
89
88
88
92
96
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 (%)

8
5
3
6
6
0
0
1
0
0
0
3
1
0
0
0
1
0
5
3
2
6
7
7

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
13
13
13
13
13
13
13
14
14
14
14
14
14
13
13
14
14
14
14
14
14
14
14

Relative Humidity (%)

80
78
72
65
60
55
54
53
55
56
63
67
70
73
74
76
79
83
85
83
86
87
87
87

Pressure (mb)

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

Ozone (du)

284
284
284
285
285
285
283
283
283
284
284
285
285
285
286
286
286
286
288
289
289
288
288
288

Tuesday 29

Waning Gibbous 86%

19:53

11:23

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

Sun - Rise: 07:39, Set: 19:21, Transit: 13:29. Moon - Rise: 19:53, Set: 11:23. Civil Dark: 19:54 - 07:06. Nautical Dark: 20:34 - 06:26. Astro Dark: 21:14 - 05:46

Total Clouds (% Sky Obscured)

95
91
87
73
59
42
54
58
62
56
51
45
83
84
89
89
84
80
86
87
89
89
90
87

Low Clouds (% Sky Obscured)

7
3
0
0
0
0
0
0
0
0
0
0
2
3
5
5
5
4
3
2
1
23
44
66

Medium Clouds (% Sky Obscured)

5
55
39
14
59
21
10
12
27
56
51
45
78
65
60
56
52
48
50
52
54
61
67
73

High Clouds (% Sky Obscured)

93
86
79
63
45
31
47
56
62
56
51
45
77
83
89
84
74
69
74
84
89
89
90
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 (%)

4
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
2
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)

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

Chance of Frost

Temperature (°C)

16
18
19
21
24
26
27
28
28
28
26
24
22
21
20
20
19
19
18
18
18
18
18
18

Feels Like (°C)

15
17
19
20
22
23
25
25
26
27
25
24
22
21
20
20
19
19
19
18
17
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

87
79
75
65
50
42
41
41
42
51
55
59
62
61
61
60
60
61
61
62
63
63
61
59

Pressure (mb)

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

Ozone (du)

288
288
290
290
290
290
291
291
289
289
288
289
288
287
287
286
287
287
287
286
286
285
286
286

Wednesday 30

Waning Gibbous 77%

20:22

12:52

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

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

Total Clouds (% Sky Obscured)

80
77
79
57
34
11
17
24
30
60
80
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

44
22
0
0
0
0
0
0
1
15
27
40
35
40
45
50
55
55
55
60
65
54
43
32

Medium Clouds (% Sky Obscured)

61
42
25
15
9
4
7
9
12
35
59
81
80
83
86
92
95
98
99
99
100
91
81
72

High Clouds (% Sky Obscured)

80
70
67
50
30
10
17
24
30
60
80
100
99
98
98
99
99
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
7
5
3
4
4
5
7
8
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
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
20
37
58
66
65
66
75
82
81
95
95
95
77
56
41

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.3
0.4
0.4
0.5
0.4
0.8
0.8
0.4
0.2
0
0

Wind Speed/Direction (mph)

7
8
10
11
12
12
13
12
11
12
10
8
7
7
8
8
7
7
7
7
6
6
5
4

Chance of Frost

Temperature (°C)

18
20
21
23
24
26
28
28
28
28
26
24
22
21
21
20
20
20
19
19
18
18
18
17

Feels Like (°C)

16
17
18
18
20
20
22
28
28
27
27
27
28
19
20
21
21
21
20
19
19
19
19
19

Dew Point (°C)

9
10
11
11
12
12
13
14
15
16
17
19
21
20
20
20
20
19
19
18
18
17
17
16

Relative Humidity (%)

58
53
50
46
44
41
40
42
45
48
59
75
94
95
95
96
96
96
95
95
95
95
95
95

Pressure (mb)

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

Ozone (du)

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

Thursday 1

Waning Gibbous 66%

21:04

14:17

08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 OK
14 OK
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:42, Set: 19:16, Transit: 13:29. Moon - Rise: 21:04, Set: 14:17. Civil Dark: 19:50 - 07:09. Nautical Dark: 20:29 - 06:30. Astro Dark: 21:09 - 05:49

Total Clouds (% Sky Obscured)

83
67
50
49
46
40
44
52
56
69
82
95
90
85
79
86
92
99

Low Clouds (% Sky Obscured)

21
13
6
8
11
15
18
21
25
29
32
36
41
49
60
61
57
52

Medium Clouds (% Sky Obscured)

54
36
16
18
17
18
21
21
22
33
45
55
46
33
22
41
60
80

High Clouds (% Sky Obscured)

73
48
22
21
18
9
11
15
20
40
62
81
71
60
51
64
77
89

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7

Fog (%)

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
Very Light Rain

Precipitation Probability (%)

29
18
5
8
7
0
2
4
3
7
8
9
14
14
20
28
40
51

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

3
4
5
6
6
6
6
6
5
5
4
4
5
4
4
4
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
18
19
20
20
21
21
26
25
24
24
25
24
18
19
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

95
89
82
77
67
57
50
50
49
47
54
61
68
69
69
70
76
83

Pressure (mb)

1019
1019
1019
1020
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1019

Ozone (du)

282
285
287
289
289
289
289
289
288
288
288
289
289
291
292
293
295
297

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

Generated: 25/09/26 08:24:29. Forecast: 25/09/26 to 01/10/26. Timezone: UTC+2.00