Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 5

Waning Gibbous 93%

20:34

08:57

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

Sun - Rise: 06:58, Set: 18:02, Transit: 12:30. Moon - Rise: 20:34, Set: 08:57. Civil Dark: 18:25 - 06:34. Nautical Dark: 18:52 - 06:07. Astro Dark: 19:19 - 05:40

Total Clouds (% Sky Obscured)

17
10
25
18
33
12
55
48
12
21
35
38
56
52
37
50
74
65
79
90
91
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
9
25
23
29
15
14
14
15
16
26
53
36
29
30
19

Medium Clouds (% Sky Obscured)

0
0
1
0
0
0
0
0
2
1
1
1
1
21
2
28
58
41
46
40
34
60
48
53

High Clouds (% Sky Obscured)

16
10
23
17
31
12
52
45
9
7
1
3
15
8
6
6
7
3
34
66
85
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
7
9
2
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
18
11
24
27
37
32
19
35
47
40
31
28
22
10
12
24
57
74
92
95
87
66

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
0.6
1.2
0.7
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
24
24
24
24
25
26
26
26
26
26
26
26
26
26
25
25
25
25
25
25
24
24

Feels Like (°C)

28
28
28
28
28
28
29
30
30
29
29
29
29
29
29
29
29
29
28
28
27
27
26
26

Dew Point (°C)

21
21
21
21
21
21
20
20
20
20
20
20
21
20
20
20
20
20
20
20
20
21
21
20

Relative Humidity (%)

84
84
85
84
84
80
74
70
69
68
68
70
71
70
70
71
72
73
73
74
76
79
82
79

Pressure (mb)

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

Ozone (du)

249
248
248
248
249
250
250
249
249
250
250
251
251
251
252
253
253
252
252
252
252
252
252
252

Tuesday 6

Waning Gibbous 89%

21:32

09:39

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:58, Set: 18:03, Transit: 12:30. Moon - Rise: 21:32, Set: 09:39. Civil Dark: 18:26 - 06:34. Nautical Dark: 18:53 - 06:07. Astro Dark: 19:20 - 05:41

Total Clouds (% Sky Obscured)

100
100
71
64
78
70
62
60
67
67
76
87
87
87
65
64
56
65
66
68
65
62
74
81

Low Clouds (% Sky Obscured)

24
28
31
39
49
46
31
32
31
27
22
29
29
21
18
20
29
35
33
35
32
36
55
62

Medium Clouds (% Sky Obscured)

42
44
39
36
41
29
25
21
34
30
0
0
34
35
36
34
0
37
46
33
36
31
35
51

High Clouds (% Sky Obscured)

100
99
47
6
25
0
0
0
20
25
60
75
70
75
20
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
6
7
6
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
22

Precipitation Type

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

Precipitation Probability (%)

65
46
53
50
63
65
45
64
69
85
95
81
72
61
41
24
24
15
21
30
31
34
36
31

Precipitation Amount (mm)

0.3
0
0
0
0.3
0.5
0
0.4
0.3
0.4
0.6
0.3
0.2
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
24
24
24
24
25
25
25
25
25
25
26
25
25
25
25
25
24
24
24
24
24
25

Feels Like (°C)

25
25
25
27
27
28
28
28
28
27
28
27
28
27
27
27
27
27
26
27
27
27
27
26

Dew Point (°C)

20
20
20
20
20
20
20
20
20
20
20
20
20
20
19
19
19
20
20
20
20
20
20
20

Relative Humidity (%)

78
78
78
77
77
77
74
73
73
72
71
71
70
70
70
72
71
73
74
76
76
76
77
76

Pressure (mb)

1014
1013
1014
1014
1015
1016
1016
1017
1016
1015
1015
1014
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1014

Ozone (du)

252
252
251
252
253
253
254
254
255
256
255
255
255
255
254
254
254
254
255
256
256
257
258
259

Wednesday 7

Waning Gibbous 81%

22:25

10:17

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

Sun - Rise: 06:58, Set: 18:03, Transit: 12:31. Moon - Rise: 22:25, Set: 10:17. Civil Dark: 18:27 - 06:35. Nautical Dark: 18:54 - 06:08. Astro Dark: 19:20 - 05:41

Total Clouds (% Sky Obscured)

72
76
59
54
57
60
42
34
32
36
47
58
46
39
35
34
37
43
49
50
48
56
57
59

Low Clouds (% Sky Obscured)

49
43
23
19
19
24
32
22
16
19
31
41
35
29
16
17
18
19
28
24
22
27
30
37

Medium Clouds (% Sky Obscured)

40
37
14
0
0
3
3
0
0
0
13
33
0
0
0
0
0
0
0
0
11
24
34
35

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
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
7
9
9
9

Fog (%)

2
0
8
23
66
24
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 (%)

27
25
15
13
11
23
33
22
9
20
12
25
24
20
15
12
10
18
14
21
22
25
28
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)

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

Chance of Frost

Temperature (°C)

25
25
24
24
24
25
26
26
26
27
27
26
26
26
26
26
25
25
25
25
25
24
24
24

Feels Like (°C)

26
26
26
27
27
28
28
28
28
29
29
28
27
28
28
27
27
27
27
26
27
27
27
27

Dew Point (°C)

20
19
19
19
19
20
20
20
20
20
20
20
20
20
21
21
21
21
21
21
21
21
21
21

Relative Humidity (%)

72
72
72
73
74
74
72
70
68
67
67
67
68
68
71
75
77
78
78
79
80
82
80
82

Pressure (mb)

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

Ozone (du)

259
259
258
257
257
257
257
257
257
258
259
259
259
259
257
255
255
255
255
254
253
254
254
254

Thursday 8

Waning Gibbous 72%

23:16

10:52

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:58, Set: 18:04, Transit: 12:31. Moon - Rise: 23:16, Set: 10:52. Civil Dark: 18:27 - 06:35. Nautical Dark: 18:54 - 06:08. Astro Dark: 19:21 - 05:41

Total Clouds (% Sky Obscured)

59
62
66
67
64
62
49
48
52
60
42
46
54
59
59
60
46
50
57
59
61
68
64
67

Low Clouds (% Sky Obscured)

37
45
48
48
41
41
22
22
34
54
19
19
20
20
20
20
20
20
25
21
27
42
40
34

Medium Clouds (% Sky Obscured)

35
35
34
33
32
33
33
34
31
27
25
26
27
28
19
9
0
8
17
25
27
28
28
31

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
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

33
36
36
37
37
39
40
41
41
49
50
55
57
56
51
48
50
51
51
50
51
51
49
46

Precipitation Amount (mm)

0
0.2
0
0
0.2
0
0
0.2
0
0.2
0.2
0.3
0.3
0.3
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2

Wind Speed/Direction (mph)

7
7
6
6
7
7
7
7
8
9
10
10
10
9
9
9
8
8
8
8
9
8
8
7

Chance of Frost

Temperature (°C)

24
24
24
24
24
25
25
26
26
26
26
26
26
26
26
25
25
25
25
25
25
24
24
24

Feels Like (°C)

27
27
27
27
27
27
28
28
29
28
27
28
28
28
28
28
27
27
27
27
27
27
27
27

Dew Point (°C)

21
21
21
21
21
20
20
20
20
20
21
21
21
21
21
21
21
21
21
21
21
21
21
21

Relative Humidity (%)

82
82
82
80
80
77
73
69
68
68
72
70
71
73
76
78
79
79
79
80
79
80
80
80

Pressure (mb)

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

Ozone (du)

254
254
255
255
256
255
255
255
255
254
255
253
252
252
252
253
254
253
253
253
253
253
253
252

Friday 9

Waning Gibbous 62%

00:06

11:25

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:58, Set: 18:04, Transit: 12:31. Moon - Rise: 00:06, Set: 11:25. Civil Dark: 18:28 - 06:35. Nautical Dark: 18:55 - 06:08. Astro Dark: 19:21 - 05:41

Total Clouds (% Sky Obscured)

70
70
68
69
70
69
65
59
50
45
42
47
52
55
59
59
62
66
67
65
65
70
67
70

Low Clouds (% Sky Obscured)

44
42
35
37
43
39
29
30
22
21
22
23
23
24
23
24
24
25
28
28
32
36
37
37

Medium Clouds (% Sky Obscured)

31
32
27
25
22
25
25
27
26
25
22
5
10
15
18
21
25
27
27
27
28
30
29
33

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
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
8
7
8
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

42
39
40
42
42
42
42
39
38
36
35
35
36
36
39
44
51
49
48
49
51
53
55
54

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
24
24
24
25
25
26
26
26
26
26
26
26
26
26
25
25
25
25
25
25
25
25

Feels Like (°C)

26
27
27
27
27
27
27
27
28
28
28
28
28
28
29
28
28
28
27
26
26
26
27
27

Dew Point (°C)

21
21
21
21
21
21
21
20
20
21
20
21
21
21
21
21
21
21
21
21
21
21
21
21

Relative Humidity (%)

82
80
80
80
80
78
75
71
70
70
69
70
70
72
73
76
77
79
79
79
79
78
79
78

Pressure (mb)

1016
1016
1016
1016
1017
1018
1018
1018
1018
1018
1017
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1016
1016
1016

Ozone (du)

252
253
252
252
253
254
255
256
257
258
258
258
258
258
258
259
259
259
260
261
262
262
261
261

Saturday 10

Third Quarter 52%

00:55

11:58

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:59, Set: 18:05, Transit: 12:32. Moon - Rise: 00:55, Set: 11:58. Civil Dark: 18:28 - 06:35. Nautical Dark: 18:55 - 06:08. Astro Dark: 19:22 - 05:42

Total Clouds (% Sky Obscured)

70
63
62
65
69
70
67
60
65
73
75
67
55
38
46
50
57
62
62
63
66
62
59
56

Low Clouds (% Sky Obscured)

34
34
29
26
24
19
18
16
16
17
20
15
13
11
11
13
16
17
18
22
27
29
30
33

Medium Clouds (% Sky Obscured)

33
32
37
39
44
38
33
28
26
21
17
13
7
0
10
21
31
33
36
39
38
36
33
32

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
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

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

Precipitation Probability (%)

52
50
50
51
53
51
47
44
44
45
46
41
34
27
29
31
34
36
40
47
48
51
55
56

Precipitation Amount (mm)

0.3
0.3
0.2
0.3
0.3
0.3
0.2
0
0
0
0.2
0
0
0
0
0
0
0
0
0.2
0.2
0.3
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
25
25
25
25
25
26
26
27
27
27
27
26
26
26
26
25
25
25
25
25
24
24
24

Feels Like (°C)

26
26
26
26
26
26
27
27
27
27
28
28
28
28
28
28
27
28
26
26
26
26
26
26

Dew Point (°C)

21
20
21
20
21
21
20
20
20
20
20
20
20
20
20
20
20
21
20
20
21
20
20
20

Relative Humidity (%)

78
77
77
76
77
77
72
69
65
65
66
67
67
68
69
70
72
76
76
77
78
78
78
78

Pressure (mb)

1016
1015
1015
1016
1016
1017
1017
1017
1017
1017
1016
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015

Ozone (du)

262
263
265
264
264
264
265
266
266
266
267
267
266
265
264
263
263
263
263
263
264
263
263
263

Sunday 11

Waning Crescent 43%

01:45

12:33

Sun - Rise: 06:59, Set: 18:06, Transit: 12:32. Moon - Rise: 01:45, Set: 12:33. Civil Dark: 18:29 - 06:35. Nautical Dark: 18:56 - 06:08. Astro Dark: 19:23 - 05:42

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 San Juan, San Juan Antiguo Barrio, Puerto Rico (18.47,-66.11)

Generated: 05/01/26 03:12:59. Forecast: 05/01/26 to 11/01/26. Timezone: UTC-4.00