Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 23

Waning Crescent 17%

04:58

16:26

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

Sun - Rise: 06:31, Set: 20:33, Transit: 13:33. Moon - Rise: 04:58, Set: 16:26. Civil Dark: 21:06 - 05:59. Nautical Dark: 21:45 - 05:19. Astro Dark: 22:29 - 04:34

Total Clouds (% Sky Obscured)

86
89
92
92
68
95
85
54
89
76
40
9
58
76
46
70
51
41
54
71
80
92
97
96

Low Clouds (% Sky Obscured)

86
89
91
92
62
92
81
43
78
60
25
5
43
48
24
45
26
9
29
49
57
68
70
63

Medium Clouds (% Sky Obscured)

86
89
43
65
59
44
44
33
43
19
23
0
14
51
46
70
51
41
53
44
44
34
34
31

High Clouds (% Sky Obscured)

25
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
11
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

95
88
93
51
48
39
25
12
20
9
9
19
11
27
36
30
22
29
26
18
26
26
13
24

Precipitation Amount (mm)

0.8
0.2
0.4
0
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)

10
9
7
5
5
5
5
4
3
3
3
3
3
5
7
7
6
6
5
7
6
5
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
6
6
7
7
7
7
7
6
6
6
9
8
10
12
11
13
14
13
12
12
12
12

Dew Point (°C)

7
7
7
8
8
7
7
7
7
7
7
6
7
8
8
7
6
6
6
6
7
7
7
8

Relative Humidity (%)

91
91
91
93
90
90
90
90
88
88
90
90
90
85
77
69
63
59
56
58
61
64
69
71

Pressure (mb)

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

Ozone (du)

386
393
398
399
395
384
369
364
357
355
353
353
352
352
352
354
356
355
353
354
354
351
352
352

Thursday 24

Waning Crescent 9%

05:17

17:48

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

Sun - Rise: 06:30, Set: 20:35, Transit: 13:33. Moon - Rise: 05:17, Set: 17:48. Civil Dark: 21:07 - 05:57. Nautical Dark: 21:47 - 05:17. Astro Dark: 22:32 - 04:32

Total Clouds (% Sky Obscured)

91
90
79
41
40
35
27
25
29
24
22
26
8
5
0
0
1
19
15
8
3
3
3
3

Low Clouds (% Sky Obscured)

59
66
44
23
28
22
22
20
2
2
21
25
7
4
0
0
1
1
2
2
2
3
0
0

Medium Clouds (% Sky Obscured)

27
30
43
41
40
29
21
14
29
24
0
0
0
0
0
0
0
19
15
7
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
0
0
0
0
2
2

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 (%)

5
4
3
1
1
0
0
1
1
1
1
0
3
0
1
2
4
1
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)

2
3
3
3
2
1
1
1
1
1
1
2
1
2
4
7
8
9
10
11
12
13
14
13

Chance of Frost

Temperature (°C)

12
10
10
8
7
7
7
6
6
6
6
6
8
10
12
13
14
15
16
17
17
17
16
15

Feels Like (°C)

11
8
8
7
8
7
8
7
7
6
6
6
8
10
11
13
14
14
14
14
15
14
14
13

Dew Point (°C)

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

Relative Humidity (%)

72
73
76
79
84
85
85
88
86
88
88
88
84
80
73
68
62
56
53
51
51
53
60
65

Pressure (mb)

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

Ozone (du)

351
350
349
349
348
347
347
348
349
350
351
350
347
345
343
343
344
343
342
341
340
338
336
334

Friday 25

Waning Crescent 3%

05:36

19:12

20 Good
21 Good
22 Good
23 OK
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

Sun - Rise: 06:28, Set: 20:36, Transit: 13:33. Moon - Rise: 05:36, Set: 19:12. Civil Dark: 21:09 - 05:55. Nautical Dark: 21:49 - 05:15. Astro Dark: 22:34 - 04:30

Total Clouds (% Sky Obscured)

3
5
6
26
55
75
77
55
71
76
97
100
100
91
95
89
73
57
57
84
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
19
25
26
44
71
76
80
78
78
72
88
74
48
30
9
0
0
1
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
15
0
0
0
0
0
0
31
45
25
15
22
6
9
21
34
46
51
55
71

High Clouds (% Sky Obscured)

1
2
2
13
10
67
57
6
3
16
78
99
100
20
14
19
36
7
36
68
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
3
3
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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
10
0
0
0
1
2
3
5
8
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)

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

Chance of Frost

Temperature (°C)

13
11
10
9
8
8
8
8
8
8
8
7
8
9
9
10
12
13
14
15
15
16
15
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
77
80
82
87
88
87
85
85
84
88
91
91
88
85
81
75
70
64
61
60
61
66
68

Pressure (mb)

1015
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1014
1015
1015

Ozone (du)

334
332
330
328
328
328
329
329
329
329
330
331
332
333
334
334
335
337
339
340
340
340
343
344

Saturday 26

Waning Crescent 0%

05:57

No Set

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

Sun - Rise: 06:26, Set: 20:37, Transit: 13:32. Moon - Rise: 05:57, Set: No Set. Civil Dark: 21:10 - 05:54. Nautical Dark: 21:50 - 05:13. Astro Dark: 22:36 - 04:27

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
91
78
86
94
95
95
98
98
98
93
85
64
67
94
100
100
100

Low Clouds (% Sky Obscured)

1
4
1
4
2
4
11
18
27
35
48
49
49
53
52
51
43
35
27
46
84
89
87
85

Medium Clouds (% Sky Obscured)

73
71
68
70
78
75
75
75
75
72
74
71
65
64
59
60
52
50
50
48
45
45
45
40

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
91
78
86
94
95
95
95
95
95
93
85
64
35
7
5
3
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 (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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 (%)

16
16
9
13
14
8
14
16
6
11
11
3
4
4
1
4
4
3
12
13
11
24
24
12

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)

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

Chance of Frost

Temperature (°C)

13
12
11
10
9
8
8
7
7
6
7
7
7
8
9
10
12
13
14
15
15
15
15
13

Feels Like (°C)

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

Dew Point (°C)

8
7
5
6
5
5
5
5
5
4
5
5
4
5
5
6
7
8
8
8
8
8
9
8

Relative Humidity (%)

70
70
69
74
78
79
84
85
88
88
87
85
81
79
78
74
71
69
65
63
61
62
69
71

Pressure (mb)

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

Ozone (du)

345
347
347
348
348
348
349
349
351
352
353
354
354
353
353
354
355
354
352
351
352
353
354
356

Sunday 27

New Moon 1%

06:23

20:40

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

Sun - Rise: 06:25, Set: 20:39, Transit: 13:32. Moon - Rise: 06:23, Set: 20:40. Civil Dark: 21:11 - 05:52. Nautical Dark: 21:52 - 05:11. Astro Dark: 22:38 - 04:25

Total Clouds (% Sky Obscured)

93
62
32
30
25
20
21
22
19
11
6
0
5
5
4
13
21
31
29
26
23
39
50
67

Low Clouds (% Sky Obscured)

79
48
21
15
11
6
4
3
0
0
0
0
3
3
2
1
1
0
1
1
1
13
23
33

Medium Clouds (% Sky Obscured)

39
33
27
24
19
16
21
22
19
11
6
0
0
0
0
0
1
2
1
1
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
4
28
26
23
39
50
67

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 (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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 (%)

23
21
7
9
7
2
3
2
1
2
1
1
0
0
0
3
4
3
18
19
15
23
24
18

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

Chance of Frost

Temperature (°C)

13
12
10
9
8
7
6
6
6
5
5
5
7
10
11
13
14
15
16
16
17
18
17
16

Feels Like (°C)

11
11
9
9
8
7
6
7
7
6
6
6
8
9
10
10
10
11
12
15
15
16
16
16

Dew Point (°C)

8
7
6
5
5
4
3
3
3
3
3
3
4
6
6
7
7
7
8
7
7
8
8
9

Relative Humidity (%)

72
71
73
76
77
78
79
81
83
85
86
86
81
77
71
66
62
59
56
55
52
51
57
62

Pressure (mb)

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

Ozone (du)

358
358
359
359
357
357
357
357
356
357
357
358
358
361
365
368
370
372
373
373
372
372
373
375

Monday 28

Waxing Crescent 5%

06:56

22:09

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

Sun - Rise: 06:23, Set: 20:40, Transit: 13:32. Moon - Rise: 06:56, Set: 22:09. Civil Dark: 21:13 - 05:50. Nautical Dark: 21:54 - 05:09. Astro Dark: 22:40 - 04:23

Total Clouds (% Sky Obscured)

53
39
23
15
10
3
2
1
0
1
2
3
3
3
3
3
2
1
1
0
0
0
0
0

Low Clouds (% Sky Obscured)

30
25
23
14
8
3
2
1
0
0
0
0
1
1
2
2
2
1
1
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

53
32
0
0
0
0
0
0
0
0
0
0
1
2
3
2
1
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 (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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 (%)

21
16
1
2
1
0
0
0
0
0
0
0
0
0
0
16
20
14
29
33
28
31
31
29

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
3
3
2
2
2
2
2
1
1
1
1
1
1
2
2
2
3
4
5
6
5
4

Chance of Frost

Temperature (°C)

14
13
12
11
10
10
8
9
8
7
8
9
10
12
13
15
16
18
19
19
20
20
19
18

Feels Like (°C)

15
13
13
13
12
12
11
9
10
9
9
9
9
12
13
14
14
15
16
21
21
21
21
21

Dew Point (°C)

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

Relative Humidity (%)

68
71
76
80
82
84
84
85
87
87
87
85
84
80
75
72
66
63
59
58
59
59
63
69

Pressure (mb)

1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1015
1015
1014
1014
1014
1014

Ozone (du)

377
375
374
373
372
370
369
367
365
363
363
364
365
368
371
374
374
374
374
372
370
368
368
369

Tuesday 29

Waxing Crescent 11%

07:40

23:36

20 OK
21 OK
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 OK
09 OK
10 OK
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:22, Set: 20:41, Transit: 13:32. Moon - Rise: 07:40, Set: 23:36. Civil Dark: 21:14 - 05:48. Nautical Dark: 21:56 - 05:07. Astro Dark: 22:42 - 04:20

Total Clouds (% Sky Obscured)

0
1
1
1
1
1
1
1
1
2
3
4
10
14
19
17
15
12

Low Clouds (% Sky Obscured)

0
1
1
1
1
1
1
1
1
2
3
4
8
14
19
17
15
12

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
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

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Precipitation Type

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

Precipitation Probability (%)

26
21
6
8
6
0
0
0
0
0
0
0
15
20
17
40
50
43

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
2
2
3
3
3
2
2
2
2
1
1
2
2
2
2
3
3

Chance of Frost

Temperature (°C)

16
15
14
12
12
11
11
11
10
10
10
10
11
12
14
16
18
19

Feels Like (°C)

21
17
16
16
15
15
15
12
11
11
11
11
11
13
14
15
15
16

Dew Point (°C)

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

Relative Humidity (%)

75
77
79
83
84
86
87
87
88
90
87
85
84
80
78
74
71
65

Pressure (mb)

1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1017
1017
1017
1016
1016

Ozone (du)

369
369
370
371
370
370
369
369
369
368
369
370
371
372
373
373
374
374

Forecast for Plainpalais, Geneva, Switzerland (46.20,6.14)

Generated: 23/04/25 20:18:31. Forecast: 23/04/25 to 29/04/25. Timezone: UTC+2.00