Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 11

New Moon 0%

07:25

19:55

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 OK
19 OK
20 Good
21 Good
22 OK
23 OK

Sun - Rise: 07:08, Set: 20:03, Transit: 13:36. Moon - Rise: 07:25, Set: 19:55. Civil Dark: 20:37 - 06:34. Nautical Dark: 21:19 - 05:52. Astro Dark: 22:03 - 05:08

Total Clouds (% Sky Obscured)

96
97
100
100
100
100
100
100
99
100
74
91
83
93
80
69
65
38
33
29
2
2
17
23

Low Clouds (% Sky Obscured)

31
30
45
30
13
13
55
85
98
100
74
91
77
69
60
54
61
37
33
29
0
0
15
20

Medium Clouds (% Sky Obscured)

41
26
26
19
100
100
100
87
33
38
25
2
14
26
22
26
4
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

96
97
100
100
100
100
7
0
3
0
0
0
0
0
0
0
1
1
2
3
2
2
2
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
7
9
5
7
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
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
19
1
13
31
56
81
70
61
24
20
30
37
45
42
29
10
4
1
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
10
11
11
11
11
11
10
11
11
13
16
18
18
18
18
18
19
19
18
16
16
15

Dew Point (°C)

7
8
7
8
10
10
10
9
9
11
10
12
15
14
14
13
12
12
13
14
15
14
13
13

Relative Humidity (%)

59
65
69
74
83
84
79
77
77
86
80
83
83
71
71
65
63
62
67
75
86
90
90
93

Pressure (mb)

1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1019
1019
1020
1020
1020
1021
1022
1022
1023

Ozone (du)

317
318
317
317
319
319
321
323
323
324
324
324
324
324
321
319
317
316
314
314
314
313
313
313

Saturday 12

Waxing Crescent 2%

08:46

20:06

00 OK
01 OK
02 OK
03 Bad
04 Bad
05 OK
06 OK
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

Sun - Rise: 07:09, Set: 20:01, Transit: 13:35. Moon - Rise: 08:46, Set: 20:06. Civil Dark: 20:35 - 06:35. Nautical Dark: 21:16 - 05:54. Astro Dark: 22:00 - 05:10

Total Clouds (% Sky Obscured)

28
31
38
50
59
36
43
49
86
74
86
100
100
99
100
100
92
97
92
95
100
100
100
100

Low Clouds (% Sky Obscured)

28
31
29
19
22
26
31
34
25
21
19
24
21
29
20
10
3
10
35
66
86
87
92
92

Medium Clouds (% Sky Obscured)

0
0
0
0
0
2
4
4
11
6
6
15
17
30
34
97
58
31
23
35
69
100
90
99

High Clouds (% Sky Obscured)

0
0
8
27
38
8
12
17
61
68
86
100
100
98
100
98
85
31
74
88
82
73
92
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
9
9
9
5

Fog (%)

0
0
6
14
84
100
100
100
100
70
98
13
1
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
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
5
24
9
32
49
64

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
0.4

Wind Speed/Direction (mph)

3
3
3
3
3
3
4
5
5
6
8
9
11
12
13
13
13
13
10
8
7
8
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
93
93
93
95
95
93
84
75
67
60
54
51
51
50
50
56
63
71
69
69
74

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1020

Ozone (du)

313
311
311
309
308
307
307
307
304
302
299
296
295
293
293
293
295
296
298
299
301
301
301
300

Sunday 13

Waxing Crescent 7%

10:06

20:18

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
22 Bad
23 Bad

Sun - Rise: 07:11, Set: 19:58, Transit: 13:35. Moon - Rise: 10:06, Set: 20:18. Civil Dark: 20:33 - 06:37. Nautical Dark: 21:14 - 05:56. Astro Dark: 21:57 - 05:12

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
98
97
100
88
75
72
73
78
70
74
73
67

Low Clouds (% Sky Obscured)

93
94
96
97
100
100
100
86
74
69
60
74
59
71
53
48
58
52
42
38
31
28
23
21

Medium Clouds (% Sky Obscured)

88
95
100
100
96
69
97
79
94
100
100
70
29
33
95
74
20
21
30
17
12
6
0
0

High Clouds (% Sky Obscured)

78
100
100
100
100
100
71
100
100
100
100
100
23
80
100
1
0
0
6
20
21
37
43
41

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

32
95
87
77
48
33
23
42
43
38
24
36
52
46
48
36
36
33
16
2
3
4
0
0

Precipitation Amount (mm)

0
1
0.2
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
11
11
10
10
9
9
9
9
9
10
11
11
13
13
12
11
9
6
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
92
93
96
96
98
96
98
98
96
96
96
95
89
86
77
72
70
72
78
88
92
95
95

Pressure (mb)

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

Ozone (du)

301
300
300
300
300
302
300
301
300
299
299
302
306
310
310
311
305
304
302
300
299
298
299
299

Monday 14

Waxing Crescent 13%

11:25

20:33

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

Sun - Rise: 07:13, Set: 19:56, Transit: 13:34. Moon - Rise: 11:25, Set: 20:33. Civil Dark: 20:30 - 06:39. Nautical Dark: 21:11 - 05:58. Astro Dark: 21:55 - 05:14

Total Clouds (% Sky Obscured)

64
59
71
80
89
91
95
98
99
99
100
96
91
92
83
73
31
35
42
49
47
49
44
51

Low Clouds (% Sky Obscured)

19
16
32
71
79
72
71
80
78
72
42
40
39
38
33
28
24
27
30
33
22
11
0
9

Medium Clouds (% Sky Obscured)

0
0
5
35
17
12
12
11
13
14
13
18
14
19
13
5
0
4
6
9
12
15
15
15

High Clouds (% Sky Obscured)

49
55
57
58
60
67
79
91
93
97
100
78
50
30
40
36
2
0
0
0
0
0
0
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 (%)

1
0
0
0
0
0
0
0
0
0
0
17
6
3
1
2
0
0
1
0
0
0
0
2

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

Chance of Frost

Temperature (°C)

15
14
14
13
13
12
12
12
12
14
16
18
19
21
22
22
23
23
22
21
19
18
17
16

Feels Like (°C)

15
15
14
14
13
13
12
12
13
14
16
18
19
20
21
21
22
23
23
23
21
20
19
18

Dew Point (°C)

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

Relative Humidity (%)

95
95
95
95
90
90
92
92
90
86
82
73
63
57
54
53
53
56
62
69
81
83
86
85

Pressure (mb)

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

Ozone (du)

298
296
293
291
290
289
289
289
288
284
281
280
281
281
282
282
282
282
283
284
285
285
286
286

Tuesday 15

Waxing Crescent 21%

12:43

20:51

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
22 Bad
23 Bad

Sun - Rise: 07:14, Set: 19:54, Transit: 13:34. Moon - Rise: 12:43, Set: 20:51. Civil Dark: 20:28 - 06:40. Nautical Dark: 21:09 - 06:00. Astro Dark: 21:52 - 05:16

Total Clouds (% Sky Obscured)

50
52
53
55
80
72
89
91
74
75
76
78
86
86
92
96
100
100
100
100
82
62
43
42

Low Clouds (% Sky Obscured)

18
30
34
37
46
55
76
81
59
53
47
46
39
35
41
45
47
46
44
43
32
21
11
20

Medium Clouds (% Sky Obscured)

15
16
14
15
12
12
62
50
23
25
24
35
80
81
87
95
100
100
100
100
82
62
43
39

High Clouds (% Sky Obscured)

0
0
0
0
18
5
1
1
0
1
2
3
8
15
33
54
65
70
87
100
67
33
0
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

2
1
3
4
3
3
3
0
1
2
2
11
15
11
34
36
32
62
79
95
87
68
39
27

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.9
0.6
0.4
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
13
13
13
13
13
13
14
14
13
12
12
11
11
10
9
9
10
11
11
12
12

Relative Humidity (%)

81
78
76
76
76
76
78
74
73
73
66
60
54
51
47
48
47
46
49
54
58
62
66
72

Pressure (mb)

1021
1021
1020
1020
1019
1019
1019
1019
1018
1018
1018
1017
1017
1016
1016
1015
1014
1013
1013
1013
1012
1012
1012
1012

Ozone (du)

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

Wednesday 16

Waxing Crescent 30%

13:59

21:16

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
22 Bad
23 Bad

Sun - Rise: 07:16, Set: 19:51, Transit: 13:34. Moon - Rise: 13:59, Set: 21:16. Civil Dark: 20:25 - 06:42. Nautical Dark: 21:06 - 06:01. Astro Dark: 21:49 - 05:18

Total Clouds (% Sky Obscured)

42
39
52
65
78
80
77
75
72
69
66
77
89
100
91
82
73
72
74
76
71
64
48
49

Low Clouds (% Sky Obscured)

29
36
48
58
68
73
75
75
70
65
59
68
75
83
71
56
42
46
49
60
53
43
34
33

Medium Clouds (% Sky Obscured)

23
8
7
4
1
1
0
0
1
2
3
6
10
14
19
20
21
29
36
42
41
40
40
38

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
13
50
55
60
55
55
45
40
40
36
31
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
7
8
8
8
8
7
7
6
5
5
6
8
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

26
30
28
21
5
15
26
39
44
45
43
42
51
53
54
54
51
48
45
43
36
27
15
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
85
92
83
78
71
75
79
84
84
85
83
81
78
76
76
76
76
81
86
92
93
92
92

Pressure (mb)

1012
1012
1012
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

285
287
289
298
306
314
316
318
320
321
322
323
323
323
323
323
324
325
325
325
325
322
320
318

Thursday 17

Waxing Crescent 39%

15:09

21:50

Sun - Rise: 07:18, Set: 19:49, Transit: 13:33. Moon - Rise: 15:09, Set: 21:50. Civil Dark: 20:23 - 06:44. Nautical Dark: 21:03 - 06:03. Astro Dark: 21:46 - 05:21

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 Utrecht, Gemeente Utrecht, Netherlands (52.09,5.12)

Generated: 11/09/26 00:20:37. Forecast: 11/09/26 to 17/09/26. Timezone: UTC+2.00