Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 27

New Moon 0%

06:17

17:42

04 Bad
05 Bad
06 Bad
07 Bad
08 Good
09 Bad
10 OK
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: 06:39, Set: 17:55, Transit: 12:17. Moon - Rise: 06:17, Set: 17:42. Civil Dark: 18:19 - 06:16. Nautical Dark: 18:46 - 05:49. Astro Dark: 19:12 - 05:23

Total Clouds (% Sky Obscured)

46
53
58
44
10
50
40
66
64
100
98
100
100
100
100
100
100
100
100
100
100
100
92
96

Low Clouds (% Sky Obscured)

46
52
48
34
4
50
39
38
39
35
32
26
0
0
1
0
0
0
13
5
7
3
39
58

Medium Clouds (% Sky Obscured)

0
0
0
0
1
2
2
2
20
4
2
2
19
3
71
89
100
87
84
85
85
93
82
63

High Clouds (% Sky Obscured)

12
3
10
9
8
8
4
42
56
100
95
100
100
100
100
100
100
100
100
100
100
100
72
79

ISS Passover

Visibility (miles)

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

Fog (%)

0
30
63
100
100
52
18
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
52

Precipitation Type

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
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
8
23
34
45
26
54
59
82
91
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.7
0.4
0.6
0.4
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
16
16
18
21
23
24
25
26
26
26
25
24
22
21
21
21
20
20
19
19
19
19

Feels Like (°C)

19
19
19
18
21
24
26
27
29
29
27
28
28
27
24
23
22
23
22
22
21
21
20
20

Dew Point (°C)

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

Relative Humidity (%)

95
93
95
93
88
79
70
66
62
58
56
58
71
78
85
87
91
92
93
96
98
98
98
98

Pressure (mb)

1013
1014
1014
1015
1015
1015
1015
1014
1013
1012
1011
1011
1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1011
1011

Ozone (du)

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

Monday 28

Waxing Crescent 1%

07:28

18:30

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 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:40, Set: 17:55, Transit: 12:17. Moon - Rise: 07:28, Set: 18:30. Civil Dark: 18:18 - 06:17. Nautical Dark: 18:45 - 05:50. Astro Dark: 19:11 - 05:23

Total Clouds (% Sky Obscured)

93
100
100
100
96
98
94
88
99
88
72
43
40
78
73
78
92
79
77
77
74
54
62
82

Low Clouds (% Sky Obscured)

45
66
71
50
64
82
84
69
69
65
60
32
27
44
44
45
57
47
57
48
46
51
60
82

Medium Clouds (% Sky Obscured)

83
60
42
27
34
45
26
34
38
25
21
0
0
0
47
40
37
7
0
0
0
0
0
0

High Clouds (% Sky Obscured)

85
100
100
100
89
89
60
72
82
56
18
43
23
72
53
70
70
70
43
65
70
0
3
40

ISS Passover

Visibility (miles)

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

Fog (%)

91
52
69
20
8
4
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
None
None
None
None
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
89
48
28
38
39
52
52
46
42
51
55
45
15
19
15
19
11
8
2
2
1
1

Precipitation Amount (mm)

0.6
0.9
0.8
0
0
0
0
0.2
0.2
0
0
0.2
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
98
95
94
92
94
92
88
80
80
88
91
93
95
95
93
95
96
98
98
96

Pressure (mb)

1011
1011
1012
1012
1013
1013
1013
1013
1013
1012
1011
1010
1010
1010
1011
1011
1012
1013
1013
1014
1014
1014
1014
1014

Ozone (du)

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

Tuesday 29

Waxing Crescent 6%

08:39

19:25

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

Sun - Rise: 06:40, Set: 17:54, Transit: 12:17. Moon - Rise: 08:39, Set: 19:25. Civil Dark: 18:17 - 06:17. Nautical Dark: 18:44 - 05:50. Astro Dark: 19:11 - 05:24

Total Clouds (% Sky Obscured)

81
60
60
75
79
82
67
47
62
66
49
29
28
29
37
40
53
56
55
54
56
59
65
60

Low Clouds (% Sky Obscured)

81
60
60
68
70
74
67
47
62
66
39
25
16
21
31
30
48
45
46
47
53
59
65
57

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
22
8
15
19
24
29
33
20
10
0
0
0
0
0

High Clouds (% Sky Obscured)

2
0
3
46
60
60
2
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
8
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
None
None
None
None

Precipitation Probability (%)

1
1
0
0
0
0
1
1
14
4
18
5
28
22
4
1
1
4
6
6
4
3
2
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
95
95
90
85
75
68
66
67
65
63
67
83
91
92
93
95
95
96
98
98
98
96

Pressure (mb)

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

Ozone (du)

258
258
259
260
261
261
261
262
263
263
261
261
262
264
264
263
264
264
265
266
265
264
263
263

Wednesday 30

Waxing Crescent 13%

09:50

20:25

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

Sun - Rise: 06:41, Set: 17:53, Transit: 12:17. Moon - Rise: 09:50, Set: 20:25. Civil Dark: 18:17 - 06:17. Nautical Dark: 18:44 - 05:51. Astro Dark: 19:10 - 05:24

Total Clouds (% Sky Obscured)

51
43
44
44
36
27
24
22
29
34
42
41
42
39
34
30
26
18
9
0
0
0
0
8

Low Clouds (% Sky Obscured)

48
41
41
40
36
27
22
18
20
24
28
30
31
30
29
27
23
17
9
0
0
0
0
8

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
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 (%)

1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
14
13
14
15
17
19
21
23
24
24
25
24
23
21
20
18
17
17
16
15
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

95
93
93
90
87
79
69
62
58
55
53
53
55
70
73
74
77
80
84
89
90
93
95
95

Pressure (mb)

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

Ozone (du)

263
264
265
268
269
270
270
271
271
270
270
270
270
268
267
267
266
265
264
262
260
259
259
259

Thursday 1

Waxing Crescent 22%

10:55

21:30

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

Sun - Rise: 06:41, Set: 17:53, Transit: 12:17. Moon - Rise: 10:55, Set: 21:30. Civil Dark: 18:16 - 06:18. Nautical Dark: 18:43 - 05:51. Astro Dark: 19:10 - 05:24

Total Clouds (% Sky Obscured)

15
20
12
6
0
4
8
12
9
6
5
0
0
0
5
10
17
16
8
0
0
0
0
11

Low Clouds (% Sky Obscured)

15
20
12
6
0
4
8
12
9
6
5
0
0
0
5
9
15
9
5
0
0
0
0
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

3
3
3
3
3
4
6
7
7
7
6
6
5
3
2
3
4
5
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

11
11
10
11
14
16
18
20
21
22
23
23
22
20
19
18
16
15
15
14
13
13
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
87
72
60
53
47
45
44
45
52
59
68
73
78
82
86
92
95
95
95
95

Pressure (mb)

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

Ozone (du)

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

Friday 2

Waxing Crescent 32%

11:52

22:34

04 OK
05 OK
06 OK
07 Good
08 Good
09 Good
10 Good
11 Good
12 OK
13 OK
14 OK
15 OK
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: 06:42, Set: 17:52, Transit: 12:17. Moon - Rise: 11:52, Set: 22:34. Civil Dark: 18:15 - 06:18. Nautical Dark: 18:42 - 05:51. Astro Dark: 19:09 - 05:25

Total Clouds (% Sky Obscured)

19
24
16
10
4
6
9
11
20
31
41
47
49
54
68
80
92
92
92
93
95
97
100
96

Low Clouds (% Sky Obscured)

17
19
11
6
0
0
0
0
11
24
38
42
39
34
18
12
5
4
2
0
13
29
44
44

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
5
10
16
16
16
18
15
12
10
18
27
35
28

High Clouds (% Sky Obscured)

1
2
2
1
1
3
5
9
14
18
15
18
23
29
41
65
88
86
82
79
88
95
100
95

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
1
2
1
3
3
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
3
3
4
4
5
6
7
8
7
6
5
4
3
3
3
4
4
4
4
4
3
3
3

Chance of Frost

Temperature (°C)

11
11
10
12
14
16
18
21
23
23
24
25
23
22
21
20
18
17
16
16
15
14
14
13

Feels Like (°C)

12
12
12
11
11
11
19
19
20
21
21
22
25
25
25
24
23
22
16
16
16
15
14
14

Dew Point (°C)

11
10
10
10
11
11
12
14
15
15
16
16
17
17
17
17
16
15
15
14
14
14
13
12

Relative Humidity (%)

95
95
96
86
79
72
68
64
60
59
59
59
65
72
80
82
85
89
90
92
93
95
95
95

Pressure (mb)

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

Ozone (du)

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

Saturday 3

Waxing Crescent 43%

12:41

23:37

Sun - Rise: 06:42, 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)

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

Generated: 27/04/25 04:46:04. Forecast: 27/04/25 to 03/05/25. Timezone: UTC-3.00