Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 17

Waxing Crescent 1%

09:27

18:02

13 OK
14 Good
15 OK
16 OK
17 OK
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
12 Bad

Sun - Rise: 07:27, Set: 17:45, Transit: 12:35. Moon - Rise: 09:27, Set: 18:02. Civil Dark: 18:11 - 07:00. Nautical Dark: 18:42 - 06:30. Astro Dark: 19:12 - 06:00

Total Clouds (% Sky Obscured)

29
17
26
40
37
100
100
100
100
100
100
93
98
100
100
97
89
93
92
93
86
89
89
100

Low Clouds (% Sky Obscured)

6
3
2
5
8
10
14
12
11
9
12
32
55
78
90
94
89
92
89
93
83
64
67
81

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
7
1
0
1
0
4
8
0
4
8
45
40
42

High Clouds (% Sky Obscured)

1
1
17
12
13
100
100
100
98
100
100
86
94
100
85
59
32
0
1
12
13
7
15
19

ISS Passover

Visibility (miles)

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

Fog (%)

2
4
3
2
0
0
0
0
6
35
55
76
97
98
100
99
97
100
99
99
100
100
3
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
1
4
3
5
3
3
4
13
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)

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

Chance of Frost

Temperature (°C)

19
19
20
19
18
16
15
15
15
14
13
13
13
13
12
13
13
13
13
13
15
16
17
18

Feels Like (°C)

20
20
20
18
18
17
14
14
14
13
13
13
14
13
12
12
13
13
13
13
14
14
15
16

Dew Point (°C)

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

Relative Humidity (%)

49
50
52
56
66
81
87
90
93
93
93
95
96
98
96
93
92
95
96
90
82
73
70
66

Pressure (mb)

1020
1020
1019
1019
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

269
269
268
268
267
266
264
264
265
267
268
266
265
265
266
268
268
269
269
270
272
275
278
278

Monday 18

Waxing Crescent 5%

10:34

19:04

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
12 Bad

Sun - Rise: 07:28, Set: 17:44, Transit: 12:35. Moon - Rise: 10:34, Set: 19:04. Civil Dark: 18:11 - 07:01. Nautical Dark: 18:41 - 06:30. Astro Dark: 19:11 - 06:00

Total Clouds (% Sky Obscured)

87
87
81
100
100
100
100
100
100
100
100
100
100
100
100
100
100
93
87
94
100
100
95
100

Low Clouds (% Sky Obscured)

85
87
38
49
31
18
14
24
33
73
86
85
76
89
79
77
83
84
76
71
43
35
39
41

Medium Clouds (% Sky Obscured)

42
59
59
60
78
87
83
100
98
99
100
100
100
100
100
70
99
75
72
87
68
98
78
64

High Clouds (% Sky Obscured)

12
42
30
100
100
99
100
100
100
100
100
100
100
100
100
100
100
30
33
20
100
100
56
70

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
0
0
0
0
13
0
0
0

Precipitation Type

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

Precipitation Probability (%)

7
14
17
18
16
11
12
12
25
19
34
44
45
51
70
95
90
49
31
33
30
28
48
44

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.9
0.8
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
64
70
76
83
89
92
93
93
95
92
89
90
92
93
95
95
95
95
96
92
82
77
72

Pressure (mb)

1021
1020
1020
1020
1020
1021
1021
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022

Ozone (du)

279
280
282
283
284
284
285
286
285
285
288
289
289
291
294
297
297
298
300
300
303
305
304
305

Tuesday 19

Waxing Crescent 11%

11:30

20:14

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
12 Bad

Sun - Rise: 07:28, Set: 17:43, Transit: 12:36. Moon - Rise: 11:30, Set: 20:14. Civil Dark: 18:10 - 07:01. Nautical Dark: 18:41 - 06:31. Astro Dark: 19:11 - 06:01

Total Clouds (% Sky Obscured)

94
100
100
100
100
100
100
100
100
100
100
100
88
100
98
100
92
100
100
100
74
90
91
88

Low Clouds (% Sky Obscured)

36
23
11
23
28
36
52
37
42
57
36
38
46
74
54
79
74
35
26
20
18
33
44
24

Medium Clouds (% Sky Obscured)

82
94
100
100
89
100
100
86
92
100
100
94
52
86
57
85
53
81
81
81
23
24
25
34

High Clouds (% Sky Obscured)

83
100
91
99
100
100
100
100
100
100
100
100
75
65
94
98
80
100
100
100
74
90
91
88

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
17
100
100
100
100
100
100
100
100
100
100
100
100
100

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 (%)

30
27
12
6
10
23
25
12
20
28
21
17
27
24
37
26
14
13
11
14
24
21
36
50

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
66
67
71
77
88
90
92
93
93
93
92
95
95
96
95
93
95
95
95
89
82
75
68

Pressure (mb)

1021
1021
1020
1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1022
1022
1022
1022
1022
1021

Ozone (du)

306
308
307
305
303
302
301
299
298
297
297
299
300
298
296
295
296
293
293
293
294
296
296
293

Wednesday 20

Waxing Crescent 20%

12:15

21:27

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 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK

Sun - Rise: 07:29, Set: 17:43, Transit: 12:36. Moon - Rise: 12:15, Set: 21:27. Civil Dark: 18:10 - 07:02. Nautical Dark: 18:40 - 06:32. Astro Dark: 19:10 - 06:02

Total Clouds (% Sky Obscured)

93
99
92
95
100
100
87
100
100
99
63
43
30
31
46
61
52
49
41
33
24
16
22
28

Low Clouds (% Sky Obscured)

26
48
35
20
28
32
28
24
21
21
18
13
11
28
39
46
41
40
32
25
18
14
17
23

Medium Clouds (% Sky Obscured)

45
50
53
84
99
100
71
62
53
43
19
13
18
4
3
2
1
0
0
2
1
0
1
2

High Clouds (% Sky Obscured)

93
95
90
95
100
100
87
100
100
93
58
33
16
7
14
21
16
13
8
5
3
0
0
0

ISS Passover

Visibility (miles)

9
5
9
9
9
4
9
9
9
6
8
9
9
2
2
9
9
9
9
9
9
9
9
9

Fog (%)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Precipitation Type

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

Precipitation Probability (%)

67
65
42
20
50
50
25
33
57
60
44
31
6
17
19
2
6
2
0
0
0
4
16
21

Precipitation Amount (mm)

0.4
0.4
0
0
0.3
0.3
0
0
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
20
20
20
19
18
17
17
16
16
15
15
15
14
13
12
12
12
12
14
16
18
19

Feels Like (°C)

21
20
19
20
20
18
17
18
17
17
17
17
15
15
15
14
13
14
14
14
16
17
19
20

Dew Point (°C)

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

Relative Humidity (%)

60
57
59
59
67
80
88
92
92
95
93
95
95
98
96
96
95
95
95
92
86
78
70
64

Pressure (mb)

1020
1019
1019
1019
1018
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1018

Ozone (du)

292
291
290
289
289
288
288
291
293
293
292
291
289
289
288
290
289
288
290
291
291
290
290
289

Thursday 21

Waxing Crescent 31%

12:52

22:39

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
12 Bad

Sun - Rise: 07:30, Set: 17:42, Transit: 12:36. Moon - Rise: 12:52, Set: 22:39. Civil Dark: 18:09 - 07:03. Nautical Dark: 18:40 - 06:32. Astro Dark: 19:10 - 06:02

Total Clouds (% Sky Obscured)

44
56
57
57
63
65
68
75
79
76
79
75
73
71
71
66
76
84
87
88
89
91
93
95

Low Clouds (% Sky Obscured)

44
56
57
57
63
65
68
75
79
75
79
75
73
69
53
38
35
32
33
31
28
30
28
33

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
24
47
69
77
84

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
3
70
70
71
69
61
70
74
61
40
42
44
55
64

ISS Passover

Visibility (miles)

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

Fog (%)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Precipitation Type

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

Precipitation Probability (%)

38
44
46
51
46
39
31
27
29
28
24
18
19
17
16
10
9
4
1
3
3
1
7
7

Precipitation Amount (mm)

0
0
0.2
0.3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
20
18
18
18
17
16
15
15
16
16
15
14
14
14
14
14
13
13
12
13
15
16
17

Dew Point (°C)

12
13
14
15
15
15
14
14
13
13
13
12
12
12
12
11
11
11
10
10
11
13
14
14

Relative Humidity (%)

60
60
67
73
78
86
86
87
86
87
90
87
86
86
87
89
90
92
90
92
84
81
76
72

Pressure (mb)

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

Ozone (du)

289
288
287
287
287
290
289
288
285
284
282
281
279
277
276
274
273
272
272
271
271
271
271
269

Friday 22

Waxing Crescent 42%

No Rise

23:47

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

Sun - Rise: 07:30, Set: 17:42, Transit: 12:36. Moon - Rise: No Rise, Set: 23:47. Civil Dark: 18:09 - 07:03. Nautical Dark: 18:39 - 06:33. Astro Dark: 19:09 - 06:03

Total Clouds (% Sky Obscured)

97
96
96
95
91
90
89
87
83
77
65
46
33
33
30
40
34
26
20
20
15
10
8
8

Low Clouds (% Sky Obscured)

34
42
51
60
68
75
79
76
68
59
51
44
33
33
30
40
34
26
20
18
12
8
7
6

Medium Clouds (% Sky Obscured)

83
83
88
92
74
57
36
21
11
6
4
2
0
0
0
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

76
51
25
0
0
0
0
0
0
0
0
0
0
3
9
12
6
3
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

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 (%)

6
13
17
18
18
15
11
13
13
10
8
11
8
3
6
9
2
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)

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

Chance of Frost

Temperature (°C)

19
20
20
19
19
18
17
16
16
16
16
15
15
15
14
14
14
13
13
13
15
17
18
19

Feels Like (°C)

18
18
21
20
20
19
19
19
17
17
17
17
17
16
16
17
16
15
15
15
16
17
18
19

Dew Point (°C)

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

Relative Humidity (%)

69
66
68
71
73
78
85
90
92
92
93
93
93
95
93
95
93
93
93
93
86
79
75
69

Pressure (mb)

1019
1019
1019
1019
1019
1020
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1021
1022
1022
1022
1023
1023
1023
1022

Ozone (du)

268
267
266
266
265
265
265
265
264
264
263
262
261
261
260
259
259
259
259
258
258
257
256
256

Saturday 23

First Quarter 53%

13:23

00:51

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

Sun - Rise: 07:31, Set: 17:41, Transit: 12:36. Moon - Rise: 13:23, Set: 00:51. Civil Dark: 18:08 - 07:04. Nautical Dark: 18:39 - 06:33. Astro Dark: 19:09 - 06:03

Total Clouds (% Sky Obscured)

9
10
10
14
17
19
17
13
7
0
19
39
40
21
8
2
6
10
16

Low Clouds (% Sky Obscured)

6
3
3
1
7
7
9
7
4
0
0
0
0
0
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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
17
35
40
15
7
2
3
4
5

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
2
4
0
0
3
1
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

Wind Speed/Direction (mph)

3
4
4
4
4
4
3
4
3
2
2
2
2
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

20
21
21
20
20
18
17
15
15
14
14
13
13
12
12
12
11
11
11

Feels Like (°C)

19
20
25
23
23
22
22
21
16
16
15
15
15
15
14
14
14
14
13

Dew Point (°C)

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

Relative Humidity (%)

64
59
61
62
65
70
75
83
84
87
89
90
90
93
92
93
91
91
90

Pressure (mb)

1022
1021
1021
1021
1021
1022
1022
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

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

Forecast for Gelukshoop, Cape Winelands District Municipality, South Africa (-33.97,20.13)

Generated: 17/05/26 13:22:22. Forecast: 17/05/26 to 23/05/26. Timezone: UTC+2.00