Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Crescent 35%

01:26

13:34

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: 05:22, Set: 18:50, Transit: 12:06. Moon - Rise: 01:26, Set: 13:34. Civil Dark: 19:15 - 04:57. Nautical Dark: 19:44 - 04:27. Astro Dark: 20:15 - 03:56

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
100
100
100
100
97
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
52
48
53
62
73
69
62
66
60
70
47
28
36
27
21
29
17
24
44
41
47
67
71

Medium Clouds (% Sky Obscured)

40
40
41
71
56
78
66
39
59
50
64
74
59
31
81
88
100
64
44
88
90
80
80
95

High Clouds (% Sky Obscured)

100
100
100
100
100
100
94
90
100
100
100
100
100
94
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

2
4
9
9
9
6
7
4
3
2
2
5
9
9
7
9
9
9
9
2
9
3
2
2

Fog (%)

0
5
9
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
47

Precipitation Type

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

Precipitation Probability (%)

54
25
64
90
95
90
95
95
95
95
95
95
78
95
95
65
46
40
95
95
49
52
95
95

Precipitation Amount (mm)

0
0
0
1.1
0.9
0.6
1.5
1.1
1.6
1.4
1
1.1
0.3
0.8
1.3
0
0
0
1.2
0.8
0
0
0.8
1.3

Wind Speed/Direction (mph)

6
5
5
6
8
8
8
8
10
9
9
7
5
4
2
2
1
3
4
4
6
4
4
5

Chance of Frost

Temperature (°C)

21
21
21
21
21
22
23
23
24
25
25
26
24
24
23
23
22
22
22
21
21
21
21
21

Feels Like (°C)

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

Dew Point (°C)

20
20
20
20
20
19
19
19
19
22
22
24
22
22
21
21
21
20
20
21
20
20
21
21

Relative Humidity (%)

98
95
95
92
91
84
78
79
74
84
82
88
88
87
88
89
89
89
92
95
96
98
98
96

Pressure (mb)

1008
1009
1009
1010
1010
1010
1010
1010
1009
1009
1009
1008
1008
1007
1008
1009
1009
1010
1010
1011
1010
1009
1009
1009

Ozone (du)

254
255
255
256
256
256
256
257
256
256
256
257
257
257
258
259
258
258
257
256
256
257
257
257

Sunday 14

Waning Crescent 26%

01:58

14:24

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: 05:22, Set: 18:50, Transit: 12:06. Moon - Rise: 01:58, Set: 14:24. Civil Dark: 19:15 - 04:57. Nautical Dark: 19:45 - 04:27. Astro Dark: 20:16 - 03:57

Total Clouds (% Sky Obscured)

100
100
100
100
88
100
100
98
100
95
95
96
100
100
100
94
90
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

68
75
59
78
80
87
76
75
80
49
46
66
47
65
66
43
22
16
20
30
43
54
57
61

Medium Clouds (% Sky Obscured)

92
98
98
92
53
70
100
76
67
60
16
6
65
72
72
61
32
27
59
40
11
7
2
2

High Clouds (% Sky Obscured)

99
100
100
100
51
99
71
58
61
58
85
87
100
100
100
87
66
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

8
5
3
3
4
8
9
9
8
9
9
3
6
2
1
5
9
9
9
9
5
3
2
2

Fog (%)

52
6
8
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
68
92
65
85
98

Precipitation Type

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

Precipitation Probability (%)

93
95
95
95
74
84
95
95
95
95
95
95
95
95
95
86
48
18
25
9
2
1
17
51

Precipitation Amount (mm)

0.3
1.1
1.2
0.8
0
0.4
0.7
0.3
0.7
0.6
0.7
1.1
1.8
3.5
3.4
0.4
0
0
0
0
0
0
0
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
21
21
21
22
23
23
24
24
25
23
24
25
24
24
23
22
22
21
21
21
21
21
21

Feels Like (°C)

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

Dew Point (°C)

21
20
20
21
21
22
21
22
20
23
19
19
20
22
23
23
21
21
20
21
21
21
21
21

Relative Humidity (%)

96
96
96
96
95
91
88
91
79
87
79
73
77
85
95
98
96
94
95
96
96
98
100
98

Pressure (mb)

1009
1010
1011
1011
1011
1012
1012
1011
1011
1010
1009
1008
1008
1008
1009
1010
1009
1010
1011
1011
1010
1009
1008
1008

Ozone (du)

255
258
260
259
259
258
258
257
256
256
255
254
254
254
255
255
255
257
254
254
254
254
254
254

Monday 15

Waning Crescent 18%

02:33

15:15

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: 05:22, Set: 18:51, Transit: 12:07. Moon - Rise: 02:33, Set: 15:15. Civil Dark: 19:16 - 04:58. Nautical Dark: 19:46 - 04:28. Astro Dark: 20:17 - 03:57

Total Clouds (% Sky Obscured)

100
100
100
94
100
100
74
96
100
100
95
84
96
100
91
100
96
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

61
64
65
73
61
72
74
88
64
72
71
34
35
28
20
28
28
27
24
23
23
28
83
82

Medium Clouds (% Sky Obscured)

1
0
1
17
21
4
22
53
21
16
8
4
55
7
3
42
20
36
57
57
58
50
69
64

High Clouds (% Sky Obscured)

100
100
100
62
100
100
20
92
98
94
74
80
88
100
91
99
96
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

1
5
1
9
9
9
9
9
4
5
8
7
7
5
9
1
7
2
3
9
9
9
6
0

Fog (%)

100
98
47
48
59
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
None
None
None
None
None
None
Light Rain
Moderate Rain
Ice pellet
Light Rain
Ice pellet
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Ice pellet
Ice pellet
Ice pellet
Very Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

47
16
12
30
45
32
27
72
95
95
95
95
95
93
95
95
95
95
95
84
85
89
95
71

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0.4
3
0.8
1.5
0.5
0.8
0.7
1.2
1
3.3
2.6
1.7
0.3
0.3
0.6
1.2
0.3

Wind Speed/Direction (mph)

3
3
3
5
7
7
8
8
8
9
8
9
7
6
4
3
2
2
2
3
4
3
4
3

Chance of Frost

Temperature (°C)

21
21
21
21
23
23
25
25
26
25
26
26
26
25
24
24
23
22
22
21
21
21
21
21

Feels Like (°C)

23
23
23
23
23
24
25
27
27
26
27
27
28
28
28
27
25
25
24
23
24
23
23
23

Dew Point (°C)

21
21
21
21
20
20
19
18
19
18
19
20
20
21
22
22
21
22
21
21
21
20
21
21

Relative Humidity (%)

98
98
98
95
87
80
69
63
64
65
65
69
70
79
87
92
91
95
95
95
95
94
96
98

Pressure (mb)

1009
1009
1010
1010
1011
1011
1011
1010
1009
1009
1008
1007
1007
1006
1007
1008
1009
1010
1010
1010
1010
1009
1009
1008

Ozone (du)

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

Tuesday 16

Waning Crescent 11%

03:11

16:08

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: 05:23, Set: 18:51, Transit: 12:07. Moon - Rise: 03:11, Set: 16:08. Civil Dark: 19:16 - 04:58. Nautical Dark: 19:46 - 04:28. Astro Dark: 20:17 - 03:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
92
100
100
100
100
100
100
100
100
100
97
100
100
100
100
97

Low Clouds (% Sky Obscured)

74
71
58
56
49
67
79
72
80
81
49
50
41
36
18
23
36
65
67
60
63
70
75
69

Medium Clouds (% Sky Obscured)

73
81
62
44
100
92
33
23
24
28
62
67
43
10
17
28
45
37
32
21
25
32
36
29

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
63
100
100
100
100
100
100
100
100
100
83
100
100
100
100
95

ISS Passover

Visibility (miles)

4
4
7
9
9
9
9
9
8
3
4
2
4
9
3
2
3
5
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
Very Light Rain
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

51
58
52
41
18
20
35
55
95
95
95
95
95
95
95
95
95
81
55
39
38
29
12
10

Precipitation Amount (mm)

0
0.2
0
0
0
0
0
0
0.9
1.4
1.6
1.2
1.2
1.8
2.2
2.4
1.2
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
4
5
6
8
8
8
8
8
8
7
7
6
5
4
4
6
9
10
11
12
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

24
23
23
22
23
24
25
26
27
27
28
28
27
26
26
25
23
21
20
19
18
18
17
16

Dew Point (°C)

21
21
21
20
20
21
21
22
20
21
23
22
22
21
22
21
21
21
19
19
18
18
18
16

Relative Humidity (%)

98
98
96
92
88
88
84
80
73
76
83
82
82
84
91
94
95
95
93
93
93
93
92
90

Pressure (mb)

1009
1009
1010
1010
1011
1010
1011
1010
1010
1009
1008
1008
1008
1008
1009
1009
1010
1011
1012
1012
1012
1012
1011
1011

Ozone (du)

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

Wednesday 17

Waning Crescent 6%

03:54

17:02

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: 05:23, Set: 18:52, Transit: 12:08. Moon - Rise: 03:54, Set: 17:02. Civil Dark: 19:17 - 04:58. Nautical Dark: 19:47 - 04:29. Astro Dark: 20:18 - 03:58

Total Clouds (% Sky Obscured)

94
93
96
98
100
97
91
88
91
94
97
100
100
99
99
99
99
99
99
99
98
97
98
100

Low Clouds (% Sky Obscured)

64
56
56
58
65
75
81
86
90
94
96
96
92
85
76
72
77
79
74
73
74
77
75
71

Medium Clouds (% Sky Obscured)

26
22
23
23
23
24
30
33
31
33
35
50
51
48
50
52
49
62
76
87
76
66
55
56

High Clouds (% Sky Obscured)

90
88
88
94
100
88
68
60
58
2
50
80
88
96
95
95
95
95
99
99
95
95
98
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
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 (%)

8
7
7
6
2
4
6
6
8
10
23
26
25
21
22
22
18
22
25
24
21
15
3
5

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
17
16
17
16
15
15
16
17
16
16
16
16
16
15
15
15
15
15
15
15
15
14
14

Relative Humidity (%)

92
92
90
89
82
75
75
74
77
73
70
73
74
74
74
76
78
81
83
88
89
89
87
87

Pressure (mb)

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

Ozone (du)

258
258
258
259
258
257
257
257
256
256
255
256
256
256
257
257
258
258
258
258
258
259
260
261

Thursday 18

Waning Crescent 2%

03:54

17:56

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: 05:24, Set: 18:53, Transit: 12:08. Moon - Rise: 03:54, Set: 17:56. Civil Dark: 19:17 - 04:59. Nautical Dark: 19:47 - 04:29. Astro Dark: 20:18 - 03:58

Total Clouds (% Sky Obscured)

99
98
98
97
96
91
89
88
91
94
97
91
83
65
58
53
65
79
84
88
91
91
90
86

Low Clouds (% Sky Obscured)

69
67
58
47
35
54
72
88
91
94
95
81
67
56
48
39
29
41
50
62
66
70
74
62

Medium Clouds (% Sky Obscured)

56
57
51
43
33
33
39
42
48
57
58
52
46
37
38
36
41
37
42
38
38
41
41
42

High Clouds (% Sky Obscured)

90
81
81
82
82
61
37
17
14
11
7
5
3
1
1
0
0
1
2
4
19
36
54
57

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
7
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
0
1
0
0
0
0
0
13
20
25
27
30
31
28
25
18
15
10
0
2
4
4
5

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

Chance of Frost

Temperature (°C)

16
15
16
17
18
19
21
22
22
22
22
23
22
21
21
21
20
20
20
20
19
19
19
18

Feels Like (°C)

14
14
15
14
13
13
22
21
20
21
22
23
23
23
23
24
25
25
21
22
22
22
21
21

Dew Point (°C)

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

Relative Humidity (%)

87
87
89
82
77
72
68
64
59
63
66
71
73
73
75
80
84
88
89
89
91
89
89
89

Pressure (mb)

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

Ozone (du)

261
262
263
264
265
265
265
264
264
263
262
261
262
262
263
263
263
263
263
263
262
262
262
262

Friday 19

New Moon 0%

04:41

18:50

Sun - Rise: 05:24, Set: 18:53, Transit: 12:09. Moon - Rise: 04:41, Set: 18:50. Civil Dark: 19:18 - 04:59. Nautical Dark: 19:48 - 04:29. Astro Dark: 20:19 - 03:59

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 São Carlos, São Carlos, Brazil (-22.01,-47.89)

Generated: 13/12/25 04:05:23. Forecast: 13/12/25 to 19/12/25. Timezone: UTC-3.00