Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 26

Waxing Gibbous 98%

20:11

05:35

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

Sun - Rise: 06:43, Set: 20:40, Transit: 13:41. Moon - Rise: 20:11, Set: 05:35. Civil Dark: 21:16 - 06:07. Nautical Dark: 22:01 - 05:23. Astro Dark: 22:52 - 04:32

Total Clouds (% Sky Obscured)

79
63
26
44
41
68
62
100
100
100
95
45
99
60
71
81
59
35
63
56
95
100
100
100

Low Clouds (% Sky Obscured)

23
18
7
33
32
26
36
18
24
22
16
13
0
0
0
0
7
0
0
0
0
11
37
0

Medium Clouds (% Sky Obscured)

19
18
16
15
9
2
2
0
0
0
0
0
11
14
57
81
6
35
50
19
51
100
97
93

High Clouds (% Sky Obscured)

5
3
0
0
2
40
40
100
100
100
93
32
99
46
61
55
47
3
23
47
53
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
5
7
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
Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
31
59
17
4
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
23
24
25
25
25
25
24
23
21
20
19
19
18
17
17
17
17
17
16
17
19
20
21

Feels Like (°C)

21
23
24
25
26
25
23
23
21
20
19
18
19
18
17
16
16
16
16
16
17
19
20
21

Dew Point (°C)

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

Relative Humidity (%)

56
52
49
47
46
46
47
55
61
65
71
76
80
83
85
87
85
86
85
83
81
86
86
80

Pressure (mb)

1016
1016
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1012
1012
1012
1012
1011
1011

Ozone (du)

319
322
322
318
316
316
315
315
314
313
312
310
309
310
310
309
309
308
309
309
307
305
308
312

Thursday 27

Waxing Gibbous 100%

20:24

06:52

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:45, Set: 20:38, Transit: 13:40. Moon - Rise: 20:24, Set: 06:52. Civil Dark: 21:13 - 06:09. Nautical Dark: 21:58 - 05:25. Astro Dark: 22:49 - 04:35

Total Clouds (% Sky Obscured)

67
100
100
100
97
100
100
95
89
100
74
100
87
82
75
83
72
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
4
7
0
27
23
38
0
25
83
33
46
32
28
24
30
30
24
25
27
24
25
23
23

Medium Clouds (% Sky Obscured)

16
64
82
4
47
87
98
28
42
94
23
21
87
82
75
49
0
2
56
47
77
20
82
100

High Clouds (% Sky Obscured)

40
100
100
100
97
99
100
65
88
86
71
100
20
20
15
15
15
100
100
98
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
7
2
8
3
3
25
90
95
95
95
83
66
60
6
5
5
19
7
3
14
27
61
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.5
0.5
2.3
3.5
0.6
0.8
0.5
0
0
0
0
0
0
0
0
0
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

23
24
26
27
28
28
28
27
24
22
21
21
20
20
19
19
18
18
17
17
18
18
19
19

Feels Like (°C)

21
23
25
26
27
27
27
27
23
22
21
21
20
20
20
19
19
18
17
17
18
18
20
19

Dew Point (°C)

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

Relative Humidity (%)

71
62
60
53
44
43
45
51
57
81
86
85
88
85
91
90
93
93
95
93
92
89
85
82

Pressure (mb)

1010
1010
1010
1009
1009
1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

311
315
317
318
315
314
314
314
314
313
314
314
312
314
315
318
318
318
317
319
320
319
320
325

Friday 28

Full Moon 99%

20:36

08:10

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

Sun - Rise: 06:47, Set: 20:35, Transit: 13:40. Moon - Rise: 20:36, Set: 08:10. Civil Dark: 21:11 - 06:11. Nautical Dark: 21:56 - 05:27. Astro Dark: 22:46 - 04:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
100
39
16
13
23
73
97
99
91
52
65
78
77
80
88
95
100
100

Low Clouds (% Sky Obscured)

20
58
87
82
46
67
60
25
12
0
2
42
92
99
81
50
45
44
63
75
78
77
81
77

Medium Clouds (% Sky Obscured)

100
96
80
100
95
27
75
27
4
0
23
73
91
82
63
7
62
34
26
26
30
32
31
37

High Clouds (% Sky Obscured)

100
100
100
100
95
94
100
10
3
13
12
31
32
20
31
2
24
1
0
0
28
65
100
100

ISS Passover

Visibility (miles)

5
2
4
2
6
4
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

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

Precipitation Probability (%)

95
95
95
95
84
88
95
28
5
3
5
12
20
30
14
12
7
5
15
8
29
39
42
45

Precipitation Amount (mm)

0.8
1.2
0.7
1.2
0.3
0.6
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
70
86
92
95
91
86
86
85
79
77
75
72
82
83
86
87
88
90
90
83
83
82
81

Pressure (mb)

1008
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1007
1007
1007
1006
1006
1007
1007
1007
1008
1008
1009
1010
1010

Ozone (du)

329
333
335
341
342
342
337
335
337
339
336
330
326
322
325
324
325
326
326
322
315
310
308
307

Saturday 29

Waning Gibbous 96%

20:46

09:28

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 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:48, Set: 20:33, Transit: 13:40. Moon - Rise: 20:46, Set: 09:28. Civil Dark: 21:09 - 06:13. Nautical Dark: 21:53 - 05:29. Astro Dark: 22:42 - 04:40

Total Clouds (% Sky Obscured)

100
100
98
96
94
90
90
88
87
74
49
45
39
32
70
53
76
80
87
86
88
91
95
96

Low Clouds (% Sky Obscured)

74
63
72
29
59
75
81
83
81
67
40
30
25
11
20
34
68
73
82
81
78
81
81
80

Medium Clouds (% Sky Obscured)

93
100
97
95
93
27
90
88
85
19
14
15
12
10
10
7
5
7
8
11
11
12
10
12

High Clouds (% Sky Obscured)

100
100
85
69
0
0
0
0
0
0
0
0
0
1
46
20
25
19
14
23
37
56
62
83

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

42
37
19
14
10
10
39
57
34
22
28
33
22
16
14
13
8
11
24
30
24
30
29
26

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
15
14
12
7
9
11
13
16
16
15
14
15
15
15
14
15
15
15
15
15
15
16
16

Relative Humidity (%)

81
71
67
60
41
48
57
66
80
84
78
78
80
78
78
77
81
81
82
81
81
82
84
80

Pressure (mb)

1010
1010
1010
1010
1009
1009
1009
1009
1008
1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1008
1008
1009
1009
1010

Ozone (du)

304
303
303
303
304
307
306
305
305
306
305
305
305
304
303
303
303
304
304
303
303
303
302
301

Sunday 30

Waning Gibbous 91%

20:57

10:49

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:50, Set: 20:31, Transit: 13:40. Moon - Rise: 20:57, Set: 10:49. Civil Dark: 21:06 - 06:15. Nautical Dark: 21:50 - 05:31. Astro Dark: 22:39 - 04:42

Total Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
100
100
100
100
83
100
100
100
100
88
76
64
76
86
94
88

Low Clouds (% Sky Obscured)

65
76
73
64
55
59
36
42
28
14
0
35
27
38
51
64
79
74
68
62
59
56
53
52

Medium Clouds (% Sky Obscured)

13
15
18
45
15
14
70
61
21
75
99
29
28
71
72
70
70
54
32
12
18
26
35
31

High Clouds (% Sky Obscured)

92
100
100
100
100
100
100
100
100
100
100
100
83
100
100
100
100
67
33
0
27
54
72
47

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
9
9
9
9
8
8

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

Precipitation Probability (%)

22
17
21
27
30
26
26
7
7
2
0
23
51
95
95
95
95
91
74
45
51
55
57
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1.7
1.2
0.8
0.5
0.3
0
0
0
0.3
0.4

Wind Speed/Direction (mph)

17
17
16
15
13
12
9
7
5
5
5
6
6
8
7
8
9
10
12
13
16
17
18
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
64
64
63
60
67
66
66
67
68
66
67
62
71
90
92
93
93
92
92
90
86
81
77

Pressure (mb)

1010
1010
1011
1011
1010
1010
1010
1010
1010
1009
1009
1008
1008
1008
1007
1007
1007
1006
1007
1007
1007
1008
1008
1009

Ozone (du)

301
300
300
300
300
302
304
305
308
309
309
313
322
326
326
327
328
329
329
330
331
331
331
331

Monday 31

Waning Gibbous 83%

21:10

No Set

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:52, Set: 20:29, Transit: 13:39. Moon - Rise: 21:10, Set: No Set. Civil Dark: 21:04 - 06:16. Nautical Dark: 21:48 - 05:33. Astro Dark: 22:36 - 04:45

Total Clouds (% Sky Obscured)

78
73
71
69
66
71
76
79
83
86
91
94
97
100
100
100
100
100
100
100
95
90
88
80

Low Clouds (% Sky Obscured)

56
47
51
57
62
53
44
35
29
24
19
17
17
17
14
13
14
13
12
20
27
33
39
28

Medium Clouds (% Sky Obscured)

27
23
17
9
1
1
1
0
10
22
33
56
77
97
90
84
77
83
88
93
88
82
77
67

High Clouds (% Sky Obscured)

34
21
15
9
2
24
46
68
72
75
78
85
94
100
100
100
100
100
100
100
80
63
48
43

ISS Passover

Visibility (miles)

8
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

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
None
None
None
None
None

Precipitation Probability (%)

81
84
83
77
62
44
25
7
15
17
11
27
27
12
31
38
15
24
17
3
9
10
5
12

Precipitation Amount (mm)

0.5
0.5
0.4
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
59
53
57
60
65
62
59
56
63
68
75
75
77
78
80
82
84
84
82
80
74
67
62

Pressure (mb)

1009
1009
1009
1010
1011
1011
1012
1013
1013
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018

Ozone (du)

327
323
318
318
317
317
317
316
316
316
316
316
315
315
314
315
315
316
316
317
318
318
319
320

Tuesday 1

Waning Gibbous 74%

21:26

12:13

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

Sun - Rise: 06:53, Set: 20:26, Transit: 13:39. Moon - Rise: 21:26, Set: 12:13. Civil Dark: 21:02 - 06:18. Nautical Dark: 21:45 - 05:35. Astro Dark: 22:33 - 04:47

Total Clouds (% Sky Obscured)

72
63
59
53
47
40
32
24
34
45
54
70
84
100
100
100
100
99
99
99

Low Clouds (% Sky Obscured)

21
13
10
9
9
8
9
8
8
6
3
2
2
2
2
2
3
20
40
58

Medium Clouds (% Sky Obscured)

57
46
40
35
31
23
16
8
17
25
34
29
27
19
36
48
62
64
65
66

High Clouds (% Sky Obscured)

31
20
25
28
30
22
13
7
14
15
18
45
71
100
100
100
100
97
95
92

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Light Rain

Precipitation Probability (%)

12
14
12
8
0
0
1
1
2
4
3
5
7
4
18
26
31
51
64
77

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
51
47
46
45
43
50
57
62
69
76
82
83
83
85
87
90
95
95
96

Pressure (mb)

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

Ozone (du)

321
323
324
324
325
325
325
325
325
325
325
326
326
326
327
328
329
331
330
329

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

Generated: 26/08/26 11:30:56. Forecast: 26/08/26 to 01/09/26. Timezone: UTC+2.00