Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 18

Waxing Crescent 23%

10:57

23:30

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 OK
00 OK
01 Bad
02 OK
03 OK

Sun - Rise: 05:41, Set: 21:50, Transit: 13:45. Moon - Rise: 10:57, Set: 23:30. Civil Dark: 22:34 - 04:56. Nautical Dark: 23:39 - 03:54. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

41
67
68
65
73
64
52
57
58
74
58
47
84
73
77
88
60
57
57
35
30
47
46
41

Low Clouds (% Sky Obscured)

41
67
67
60
69
64
52
57
58
74
58
38
59
32
30
61
42
42
25
25
25
43
46
37

Medium Clouds (% Sky Obscured)

41
55
25
18
12
2
2
2
2
9
1
25
26
48
56
29
4
0
25
0
0
0
0
0

High Clouds (% Sky Obscured)

41
3
12
3
7
6
3
1
3
0
0
2
49
65
65
69
55
35
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 (%)

0
0
0
0
0
0
1
0
0
1
1
0
0
1
0
0
0
1
2
1
2
2
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
5
5
7
8
9
10
12
12
14
14
14
15
13
13
13
11
10
9
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
13
12
11
10
10
9
8
9
9
9
10
10
11
10
8
7
6
6
5
7

Relative Humidity (%)

92
93
95
90
76
63
56
50
48
45
45
44
45
48
50
54
59
59
56
54
57
56
57
63

Pressure (mb)

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

Ozone (du)

333
333
333
334
335
335
333
330
334
335
334
333
333
335
338
342
346
352
360
362
362
365
365
366

Sunday 19

Waxing Crescent 32%

12:16

23:41

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

Sun - Rise: 05:42, Set: 21:48, Transit: 13:45. Moon - Rise: 12:16, Set: 23:41. Civil Dark: 22:33 - 04:58. Nautical Dark: 23:37 - 03:56. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

58
68
64
69
36
33
42
39
38
30
43
52
4
56
36
15
13
8
23
24
58
60
68
63

Low Clouds (% Sky Obscured)

49
61
53
58
36
33
42
39
38
30
30
14
3
44
31
15
13
8
20
23
55
60
67
52

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
30
49
0
54
23
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
4
3
8
11
63

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
1
1
1
1
0
1
1
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)

6
7
7
7
8
12
14
15
15
15
16
16
16
15
16
15
14
11
8
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
3
4
4
5
6
5
4
4
4
4
6
7
6
6
6
7
7
7
9
6
5
3
4

Relative Humidity (%)

62
51
52
49
49
48
41
37
35
34
34
38
40
39
39
44
49
52
58
69
60
55
50
53

Pressure (mb)

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

Ozone (du)

366
367
365
365
365
366
368
369
368
367
367
367
368
368
369
363
358
355
354
354
355
352
349
347

Monday 20

Waxing Crescent 43%

13:34

23:53

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 OK
18 Bad
19 OK
20 OK
21 Good
22 Good
23 Good
00 Good
01 Good
02 OK
03 OK

Sun - Rise: 05:44, Set: 21:47, Transit: 13:45. Moon - Rise: 13:34, Set: 23:53. Civil Dark: 22:31 - 05:00. Nautical Dark: 23:35 - 03:58. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

72
77
70
76
64
81
76
86
97
70
63
65
59
37
53
20
17
10
5
8
10
14
13
9

Low Clouds (% Sky Obscured)

61
64
54
53
37
59
41
0
75
40
63
58
42
30
53
20
17
10
5
8
10
14
13
9

Medium Clouds (% Sky Obscured)

0
0
20
50
50
75
71
45
43
51
41
37
36
18
2
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

72
77
70
75
58
55
53
57
44
34
5
6
20
4
2
0
0
0
0
0
0
0
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
0
1
0
0
1
0
1
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)

6
5
5
5
7
8
10
10
9
9
10
13
14
14
13
13
11
10
8
7
7
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
54
57
55
54
50
45
43
40
34
31
30
30
32
35
40
47
56
68
75
83
87
90
92

Pressure (mb)

1023
1023
1023
1023
1023
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1024
1024
1025
1025
1025
1025
1025
1025

Ozone (du)

349
348
347
347
348
349
349
348
348
349
349
349
350
353
355
354
353
355
357
357
356
356
354
352

Tuesday 21

First Quarter 53%

14:50

00:07

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

Sun - Rise: 05:45, Set: 21:46, Transit: 13:45. Moon - Rise: 14:50, Set: 00:07. Civil Dark: 22:30 - 05:01. Nautical Dark: 23:33 - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

5
4
4
3
11
19
18
18
19
27
52
80
51
39
20
17
24
29
37
61
98
100
100
100

Low Clouds (% Sky Obscured)

5
4
4
3
11
19
18
18
19
24
20
16
11
12
14
16
24
29
37
45
45
43
60
90

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
5
7
5
3
0
0
0
0
7
14
20
14
7
0
20
41

High Clouds (% Sky Obscured)

0
0
0
0
1
0
0
5
5
10
28
54
30
28
11
12
16
22
25
49
94
100
87
73

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
1
1
0
1
2
1
4
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)

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

Chance of Frost

Temperature (°C)

12
12
12
13
15
17
19
20
21
23
24
24
23
23
22
21
20
18
16
15
15
14
14
14

Feels Like (°C)

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

Dew Point (°C)

11
11
11
12
11
11
9
8
6
5
5
6
6
6
6
6
9
9
10
11
12
12
12
12

Relative Humidity (%)

92
93
93
89
78
67
54
44
36
32
30
31
32
32
33
37
47
54
65
76
83
87
87
83

Pressure (mb)

1025
1025
1026
1026
1026
1026
1027
1027
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023

Ozone (du)

350
348
346
344
342
341
340
339
338
336
334
332
331
333
336
342
340
338
337
336
336
337
337
339

Wednesday 22

Waxing Gibbous 63%

16:06

00:23

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
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 05:47, Set: 21:45, Transit: 13:46. Moon - Rise: 16:06, Set: 00:23. Civil Dark: 22:28 - 05:03. Nautical Dark: 23:30 - 04:01. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
99
99
99
100
100
100
100
100
90
81
71
68
65
63
56
49
53
69
74
80
68
56

Low Clouds (% Sky Obscured)

100
93
81
62
76
79
80
80
80
80
73
65
58
57
57
57
56
49
50
55
63
74
62
52

Medium Clouds (% Sky Obscured)

100
99
98
97
98
98
100
100
100
100
78
56
34
33
28
22
22
26
33
37
35
27
22
19

High Clouds (% Sky Obscured)

60
64
64
71
68
55
5
57
6
1
1
0
0
0
0
0
0
0
0
1
2
2
2
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
3
3
2
8
9
9
9
9
9
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

8
15
15
24
44
69
95
95
95
95
95
95
65
58
49
34
32
29
25
29
28
22
23
21

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.7
0.9
1.5
1
1.5
0.9
0.3
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
6
6
8
9
10
10
10
10
10
12
13
15
14
13
12
10
9
7
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
70
77
78
68
71
74
93
95
96
95
79
66
56
61
67
74
78
82
87
84
82
79
83

Pressure (mb)

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

Ozone (du)

340
341
344
349
352
355
357
360
364
365
371
373
375
376
376
375
375
373
372
370
370
370
370
370

Thursday 23

Waxing Gibbous 72%

17:20

00:46

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 OK
23 OK
00 OK
01 OK
02 Bad
03 Bad

Sun - Rise: 05:48, Set: 21:43, Transit: 13:46. Moon - Rise: 17:20, Set: 00:46. Civil Dark: 22:27 - 05:05. Nautical Dark: 23:28 - 04:03. Astro Dark: N/A - 02:10

Total Clouds (% Sky Obscured)

43
58
72
88
89
90
91
90
88
82
87
88
89
78
63
45
45
46
45
41
37
34
50
66

Low Clouds (% Sky Obscured)

42
58
69
81
80
81
84
85
82
79
80
80
83
70
54
38
34
31
25
30
37
34
42
49

Medium Clouds (% Sky Obscured)

15
21
25
29
33
40
45
47
47
53
55
57
51
29
14
0
0
0
0
1
2
3
3
4

High Clouds (% Sky Obscured)

2
1
1
0
0
0
0
0
0
0
0
0
1
3
6
11
18
26
36
26
14
2
2
1

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 (%)

14
20
22
22
28
30
29
29
26
23
23
19
10
13
11
1
4
4
1
9
8
3
12
8

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
7
8
10
12
13
14
15
15
16
16
16
15
15
14
14
13
12
10
8
8
7
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
89
84
80
77
76
73
70
62
55
49
47
47
45
47
50
53
63
73
86
86
87
90
82

Pressure (mb)

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

Ozone (du)

370
370
370
369
368
362
356
351
349
346
344
343
342
341
341
340
339
340
341
342
341
340
339
339

Friday 24

Waxing Gibbous 80%

18:31

01:17

Sun - Rise: 05:49, Set: 21:42, Transit: 13:46. Moon - Rise: 18:31, Set: 01:17. Civil Dark: 22:25 - 05:06. Nautical Dark: 23:26 - 04:05. Astro Dark: 01:21 - 02:21

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: 18/07/26 03:41:45. Forecast: 18/07/26 to 24/07/26. Timezone: UTC+2.00