Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 27

New Moon 0%

07:28

17:42

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: 06:40, Set: 17:55, Transit: 12:17. Moon - Rise: 07:28, Set: 17:42. Civil Dark: 18:19 - 06:17. Nautical Dark: 18:46 - 05:50. Astro Dark: 19:12 - 05:23

Total Clouds (% Sky Obscured)

100
86
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
97
96

Low Clouds (% Sky Obscured)

38
31
41
28
2
4
0
0
3
19
35
47
48
60
64
79
75
93
89
86
88
78
89
68

Medium Clouds (% Sky Obscured)

13
2
2
4
14
27
35
46
33
66
62
46
89
100
90
80
81
82
56
27
22
19
30
36

High Clouds (% Sky Obscured)

100
76
100
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
49
69
84

ISS Passover

Visibility (miles)

-
9
9
9
9
9
9
9
9
9
5
4
5
4
6
5
5
1
9
9
9
9
7
5

Fog (%)

-
0
0
0
0
0
0
0
0
0
0
0
0
0
23
1
78
22
4
13
5
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
15
25
20
17
42
82
95
95
95
95
95
95
95
95
84
39
33
30
48
47

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.8
0.7
0.7
0.8
5.7
2
0.2
0
0
0
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
26
26
26
25
24
22
21
21
20
20
19
19
19
19
19
19
19
19
19
20
21
22
22

Feels Like (°C)

26
27
28
27
27
27
23
22
22
21
22
21
21
21
21
21
21
21
21
21
22
24
24
25

Dew Point (°C)

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

Relative Humidity (%)

66
58
55
59
64
73
80
84
86
89
93
96
98
96
98
98
98
100
100
98
96
94
89
85

Pressure (mb)

1013
1012
1011
1011
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013

Ozone (du)

253
255
256
255
257
256
256
254
253
254
255
255
256
256
256
257
258
258
258
258
258
258
258
257

Monday 28

Waxing Crescent 1%

08:39

18:30

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: 06:40, Set: 17:55, Transit: 12:17. Moon - Rise: 08:39, Set: 18:30. Civil Dark: 18:18 - 06:17. Nautical Dark: 18:45 - 05:50. Astro Dark: 19:11 - 05:24

Total Clouds (% Sky Obscured)

100
90
87
61
57
77
71
83
42
76
45
46
65
77
78
75
76
73
72
62
82
73
68
70

Low Clouds (% Sky Obscured)

52
52
43
37
37
57
59
57
42
59
45
46
63
72
77
74
75
73
71
62
81
73
68
59

Medium Clouds (% Sky Obscured)

30
25
28
21
0
30
29
24
27
25
0
0
13
6
0
0
0
0
0
0
0
0
0
25

High Clouds (% Sky Obscured)

100
80
72
42
53
39
28
57
1
38
1
18
0
1
0
0
0
0
6
34
45
5
3
2

ISS Passover

Visibility (miles)

8
9
9
9
8
7
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 (%)

42
43
40
46
47
30
26
26
23
18
8
13
8
10
1
1
0
1
2
1
1
8
2
16

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
4
4
4
4
3
3
3
4
4
4
4
3
2
3
3
3
2
2
3
2
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

25
27
27
27
27
26
24
23
20
22
20
21
20
20
19
18
18
18
17
17
19
20
21
22

Dew Point (°C)

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

Relative Humidity (%)

81
74
67
65
67
80
85
91
91
92
93
96
96
98
98
98
95
95
95
96
92
85
80
72

Pressure (mb)

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

Ozone (du)

257
257
256
256
256
256
256
255
255
256
257
257
256
257
256
256
256
257
257
258
259
259
259
259

Tuesday 29

Waxing Crescent 6%

09:50

19:25

12 Bad
13 Bad
14 Bad
15 Bad
16 OK
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 OK
06 OK
07 Good
08 OK
09 OK
10 OK
11 OK

Sun - Rise: 06:41, Set: 17:54, Transit: 12:17. Moon - Rise: 09:50, Set: 19:25. Civil Dark: 18:17 - 06:17. Nautical Dark: 18:44 - 05:51. Astro Dark: 19:11 - 05:24

Total Clouds (% Sky Obscured)

66
72
73
60
39
48
54
53
43
47
58
44
49
54
48
45
45
32
19
8
25
32
36
41

Low Clouds (% Sky Obscured)

46
60
57
42
13
25
37
24
14
37
48
44
46
52
48
45
44
32
18
8
25
27
31
35

Medium Clouds (% Sky Obscured)

40
39
40
37
32
43
46
44
32
31
23
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

3
1
3
1
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

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 (%)

19
18
14
11
12
3
3
1
9
1
1
4
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)

4
1
1
2
2
2
3
2
3
3
2
3
3
3
3
4
4
3
4
4
3
7
7
7

Chance of Frost

Temperature (°C)

23
23
23
23
23
22
20
18
18
17
16
16
15
15
14
14
13
13
13
13
15
17
18
20

Feels Like (°C)

24
26
25
25
25
26
23
22
21
19
19
18
18
17
16
15
14
14
14
14
17
17
19
21

Dew Point (°C)

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

Relative Humidity (%)

65
64
65
72
70
79
88
92
93
95
95
96
96
98
96
96
98
96
96
95
90
78
68
62

Pressure (mb)

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

Ozone (du)

259
259
259
259
259
258
259
259
259
259
260
260
259
258
258
259
260
261
261
263
264
267
267
266

Wednesday 30

Waxing Crescent 13%

10:55

20:25

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

Sun - Rise: 06:41, Set: 17:53, Transit: 12:17. Moon - Rise: 10:55, Set: 20:25. Civil Dark: 18:17 - 06:18. Nautical Dark: 18:44 - 05:51. Astro Dark: 19:10 - 05:24

Total Clouds (% Sky Obscured)

46
52
62
58
58
54
48
41
36
23
12
0
0
0
0
2
3
4
3
1
0
3
6
9

Low Clouds (% Sky Obscured)

43
52
62
58
58
54
48
41
36
23
11
0
0
0
0
2
2
3
3
1
0
3
6
9

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)

0
0
0
0
0
0
0
0
0
1
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

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

Chance of Frost

Temperature (°C)

21
22
22
23
22
21
18
17
16
15
14
13
13
12
12
11
11
10
10
11
13
16
18
20

Feels Like (°C)

22
23
24
24
24
23
21
19
18
17
16
15
14
13
13
12
11
11
11
12
14
16
18
20

Dew Point (°C)

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

Relative Humidity (%)

57
53
51
50
53
67
72
74
78
85
90
95
96
96
96
98
96
95
96
95
86
69
64
60

Pressure (mb)

1018
1017
1016
1015
1015
1016
1016
1017
1017
1018
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020

Ozone (du)

266
266
266
266
266
266
266
265
265
264
262
262
261
260
259
258
258
258
258
257
255
256
257
257

Thursday 1

Waxing Crescent 22%

11:52

21:30

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

Sun - Rise: 06:42, Set: 17:53, Transit: 12:17. Moon - Rise: 11:52, Set: 21:30. Civil Dark: 18:16 - 06:18. Nautical Dark: 18:43 - 05:51. Astro Dark: 19:10 - 05:25

Total Clouds (% Sky Obscured)

14
18
22
26
31
30
21
14
8
13
16
21
15
10
7
4
2
1
1
2
2
10
20
30

Low Clouds (% Sky Obscured)

14
18
22
26
31
30
21
14
8
13
16
21
15
10
7
4
2
1
1
1
1
6
12
20

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)

0
0
0
0
0
0
0
0
0
1
3
4
2
1
0
0
0
0
0
0
1
0
1
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 (%)

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

Chance of Frost

Temperature (°C)

21
22
23
24
23
22
19
18
17
16
15
15
14
13
13
13
12
12
11
13
15
17
19
21

Feels Like (°C)

22
23
25
26
25
25
22
21
19
18
17
16
15
15
14
14
14
13
13
13
13
12
21
21

Dew Point (°C)

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

Relative Humidity (%)

59
57
58
57
59
74
82
85
88
92
93
96
95
96
96
96
96
96
96
87
80
73
69
65

Pressure (mb)

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

Ozone (du)

256
255
255
254
255
255
254
254
253
253
253
252
251
251
251
251
251
252
252
252
252
252
252
252

Friday 2

Waxing Crescent 32%

No Rise

22:34

12 OK
13 OK
14 OK
15 OK
16 Good
17 Good
18 OK
19 OK
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: 06:42, Set: 17:52, Transit: 12:17. Moon - Rise: No Rise, Set: 22:34. Civil Dark: 18:15 - 06:19. Nautical Dark: 18:42 - 05:52. Astro Dark: 19:09 - 05:25

Total Clouds (% Sky Obscured)

35
33
37
26
15
6
21
36
52
65
78
90
91
93
96
95
92
91
92
93
94
96
98
99

Low Clouds (% Sky Obscured)

23
26
28
17
10
4
10
16
29
28
27
25
27
27
25
36
41
40
16
8
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
14
24
23
22
25
33
41
53

High Clouds (% Sky Obscured)

6
11
16
10
6
2
8
12
15
32
49
73
86
91
91
78
66
54
54
64
76
67
52
41

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
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)

8
7
6
6
4
3
3
3
3
3
3
3
3
2
2
2
2
1
2
2
2
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
21
22
23
26
26
26
25
23
22
17
18
18
17
17
16
15
14
14
14
14
15
20
21

Dew Point (°C)

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

Relative Humidity (%)

60
59
58
57
63
70
81
81
83
85
86
87
87
89
90
90
92
92
93
86
81
74
68
64

Pressure (mb)

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

Ozone (du)

252
252
252
252
251
251
251
250
250
249
250
250
250
250
250
250
250
250
250
250
250
250
251
251

Saturday 3

Waxing Crescent 43%

12:41

23:37

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 OK
08 OK

Sun - Rise: 06:43, Set: 17:51, Transit: 12:17. Moon - Rise: 12:41, Set: 23:37. Civil Dark: 18:15 - 06:19. Nautical Dark: 18:42 - 05:52. Astro Dark: 19:09 - 05:25

Total Clouds (% Sky Obscured)

96
92
88
92
96
100
100
100
100
91
85
73
74
73
77
79
76
76
59
42
25

Low Clouds (% Sky Obscured)

6
15
22
15
7
1
1
2
2
5
7
9
12
15
30
31
35
36
25
14
0

Medium Clouds (% Sky Obscured)

59
66
73
81
90
99
97
95
93
64
36
8
5
3
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

44
48
43
60
80
100
100
100
100
77
49
23
21
23
21
36
51
60
49
39
25

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

Fog (%)

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

Precipitation Probability (%)

5
3
1
5
6
5
11
10
1
2
2
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

Wind Speed/Direction (mph)

3
2
3
3
2
1
1
1
2
3
3
3
3
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

23
24
24
25
24
22
21
20
19
19
18
17
16
16
15
15
15
14
14
16
17

Feels Like (°C)

21
22
23
23
27
26
25
24
23
22
18
18
18
17
17
17
15
14
15
15
14

Dew Point (°C)

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

Relative Humidity (%)

58
56
54
51
58
64
73
76
77
81
82
83
85
86
87
89
89
90
92
85
77

Pressure (mb)

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

Ozone (du)

252
252
251
251
251
252
252
252
251
250
251
251
251
252
253
253
254
254
254
254
255

Forecast for Sítio São Sebastião, Pinhalão, Brazil (-23.92,-50.12)

Generated: 27/04/25 13:49:00. Forecast: 27/04/25 to 03/05/25. Timezone: UTC-3.00