Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

20:02

07:30

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

Sun - Rise: 07:24, Set: 19:41, Transit: 13:32. Moon - Rise: 20:02, Set: 07:30. Civil Dark: 20:15 - 06:51. Nautical Dark: 20:56 - 06:10. Astro Dark: 21:38 - 05:28

Total Clouds (% Sky Obscured)

100
94
95
91
2
27
23
16
0
1
41
98
86
18
9
79
87
81
97
99
100
100
100
99

Low Clouds (% Sky Obscured)

100
94
94
88
0
27
22
16
0
1
2
0
0
0
0
0
0
1
3
0
1
1
1
1

Medium Clouds (% Sky Obscured)

1
0
0
0
0
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
2
0

High Clouds (% Sky Obscured)

2
2
18
20
2
0
0
0
0
0
40
98
86
18
9
79
87
80
96
99
100
100
100
99

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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)

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

Chance of Frost

Temperature (°C)

19
18
17
16
14
13
12
11
10
10
9
9
9
9
8
7
7
9
11
14
16
17
19
19

Feels Like (°C)

19
18
17
16
14
13
12
11
10
9
8
8
8
8
7
7
7
8
11
14
16
17
19
19

Dew Point (°C)

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

Relative Humidity (%)

51
53
57
63
68
72
77
82
84
86
91
92
92
91
91
92
91
86
75
66
60
55
50
48

Pressure (mb)

1022
1023
1023
1023
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1028
1028
1028
1029
1029
1029
1029
1029
1029

Ozone (du)

289
288
287
288
290
290
291
290
288
285
285
284
285
286
286
285
285
285
285
284
284
284
285
285

Tuesday 21

Full Moon 99%

20:16

08:44

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
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:26, Set: 19:39, Transit: 13:31. Moon - Rise: 20:16, Set: 08:44. Civil Dark: 20:13 - 06:52. Nautical Dark: 20:53 - 06:12. Astro Dark: 21:35 - 05:30

Total Clouds (% Sky Obscured)

100
95
86
91
90
81
88
94
95
93
93
97
98
98
98
95
95
95
91
83
95
81
70
60

Low Clouds (% Sky Obscured)

66
91
16
5
5
2
1
0
0
0
2
13
13
16
23
9
8
6
2
2
79
75
70
60

Medium Clouds (% Sky Obscured)

1
1
1
5
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
70
84
90
89
81
88
93
95
93
93
97
98
98
98
95
95
95
90
82
79
27
2
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
3
4
2
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
19
18
16
14
13
13
12
11
11
11
10
10
10
9
9
9
11
13
15
17
18
19
20

Feels Like (°C)

20
19
18
16
14
13
13
12
11
11
11
10
10
9
8
8
8
11
13
15
17
18
19
20

Dew Point (°C)

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

Relative Humidity (%)

48
50
57
65
70
75
80
86
90
92
95
96
96
95
95
94
90
87
78
73
67
63
58
55

Pressure (mb)

1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1029
1029
1029
1029
1028
1028
1027
1027

Ozone (du)

286
286
284
283
281
281
280
279
278
277
276
275
274
273
272
272
272
273
273
273
273
273
275
275

Wednesday 22

Waning Gibbous 96%

20:29

09:56

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

Sun - Rise: 07:28, Set: 19:37, Transit: 13:31. Moon - Rise: 20:29, Set: 09:56. Civil Dark: 20:10 - 06:54. Nautical Dark: 20:51 - 06:14. Astro Dark: 21:32 - 05:32

Total Clouds (% Sky Obscured)

39
13
1
0
0
0
0
2
58
24
13
39
48
34
92
99
98
98
98
98
98
98
97
97

Low Clouds (% Sky Obscured)

39
13
1
0
0
0
0
0
4
11
6
6
22
32
70
73
51
51
51
51
51
51
70
70

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
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
56
15
8
36
33
2
74
96
95
95
95
95
95
95
89
89

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
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
0.01

Wind Speed/Direction (mph)

8
8
7
6
5
5
6
7
7
7
8
9
8
8
9
9
9
10
11
12
14
15
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
11
12
11
11
11
11
11
11
11
11
11
12
11
11
11
11
11
12
13
13
13
12
12

Relative Humidity (%)

54
56
63
70
74
78
82
88
92
93
93
95
97
96
95
94
93
90
84
78
71
67
64
67

Pressure (mb)

1026
1026
1025
1025
1025
1025
1024
1024
1023
1023
1021
1020
1020
1019
1019
1018
1018
1018
1017
1017
1016
1016
1016
1015

Ozone (du)

275
274
274
275
274
274
274
274
274
274
272
270
269
270
273
275
276
276
275
274
274
273
274
275

Thursday 23

Waning Gibbous 91%

20:42

11:09

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

Sun - Rise: 07:29, Set: 19:34, Transit: 13:31. Moon - Rise: 20:42, Set: 11:09. Civil Dark: 20:08 - 06:56. Nautical Dark: 20:48 - 06:16. Astro Dark: 21:30 - 05:34

Total Clouds (% Sky Obscured)

97
97
97
97
62
62
62
62
62
62
43
43
43
43
43
43
79
79
79
79
79
79
99
99

Low Clouds (% Sky Obscured)

70
70
70
70
35
35
35
35
35
35
42
42
42
42
42
42
78
78
78
78
78
78
99
99

Medium Clouds (% Sky Obscured)

1
1
1
1
0
0
0
0
0
0
3
3
3
3
3
3
2
2
2
2
2
2
0
0

High Clouds (% Sky Obscured)

89
89
89
89
40
40
40
40
40
40
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
4
3
2
0
0
0
0
0
0
0
0
0
0
4
5
6
5
4
3
0
0
0

Precipitation Amount (mm)

0
0
0.02
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0.01
0.02
0.03
0.02
0.02
0.01
0
0
0

Wind Speed/Direction (mph)

15
14
14
13
12
11
10
10
10
9
9
9
9
8
8
8
7
7
9
10
11
12
12
12

Chance of Frost

Temperature (°C)

17
17
16
15
14
13
13
13
13
12
12
12
12
12
11
11
11
12
14
15
16
17
18
18

Feels Like (°C)

17
17
16
15
14
13
13
13
13
12
12
12
12
12
11
11
11
12
14
15
16
17
18
18

Dew Point (°C)

12
12
12
11
10
10
10
10
11
11
11
11
11
11
11
10
10
11
11
11
11
11
10
10

Relative Humidity (%)

71
73
74
75
77
79
80
85
88
90
93
94
95
96
99
97
98
93
84
77
72
67
63
60

Pressure (mb)

1015
1014
1014
1014
1014
1015
1015
1015
1014
1015
1014
1014
1014
1014
1014
1014
1016
1016
1016
1015
1015
1015
1015
1014

Ozone (du)

276
278
281
281
281
281
281
281
280
280
283
283
282
281
281
280
280
279
279
278
277
277
275
274

Friday 24

Waning Gibbous 84%

20:57

12:20

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

Sun - Rise: 07:31, Set: 19:32, Transit: 13:30. Moon - Rise: 20:57, Set: 12:20. Civil Dark: 20:06 - 06:57. Nautical Dark: 20:46 - 06:18. Astro Dark: 21:27 - 05:36

Total Clouds (% Sky Obscured)

99
99
99
99
0
0
0
0
0
0
0
0
0
0
0
0
41
41
41
41
41
41
98
98

Low Clouds (% Sky Obscured)

99
99
99
99
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
85
85

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
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
41
41
41
41
41
41
94
94

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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)

12
12
10
8
8
8
8
9
9
9
8
8
8
8
8
9
8
8
8
8
8
8
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
61
64
69
76
81
87
93
95
97
100
100
100
100
100
100
97
95
94
91
88
84
80
77

Pressure (mb)

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

Ozone (du)

272
271
271
270
268
267
267
267
267
267
270
270
268
267
266
266
266
265
265
266
267
268
269
270

Saturday 25

Waning Gibbous 77%

21:15

13:31

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

Sun - Rise: 07:33, Set: 19:30, Transit: 13:30. Moon - Rise: 21:15, Set: 13:31. Civil Dark: 20:03 - 06:59. Nautical Dark: 20:43 - 06:19. Astro Dark: 21:24 - 05:38

Total Clouds (% Sky Obscured)

98
98
98
98
45
45
45
45
45
45
12
12
12
12
12
12
17
17
17
17
17
17
32
32

Low Clouds (% Sky Obscured)

85
85
85
85
3
3
3
3
3
3
11
11
11
11
11
11
16
16
16
16
16
16
1
1

Medium Clouds (% Sky Obscured)

1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
9

High Clouds (% Sky Obscured)

94
94
94
94
42
42
42
42
42
42
0
0
0
0
0
0
1
1
1
1
1
1
25
25

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
1
2
2
1
1
1
1
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.01
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
75
78
81
85
89
93
97
98
100
100
100
100
100
100
100
98
95
89
85
86
85
82
79

Pressure (mb)

1015
1015
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1015
1015

Ozone (du)

271
271
273
274
276
277
278
279
279
280
280
280
281
281
281
282
282
282
282
281
281
281
282
282

Sunday 26

Waning Gibbous 68%

21:38

14:39

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

Sun - Rise: 07:34, Set: 19:27, Transit: 13:30. Moon - Rise: 21:38, Set: 14:39. Civil Dark: 20:01 - 07:01. Nautical Dark: 20:41 - 06:21. Astro Dark: 21:22 - 05:40

Total Clouds (% Sky Obscured)

32
32
32
32
90
90
90
90
90
90
39
39
39
39
39
39
32
32
32
32
32
32
100
100

Low Clouds (% Sky Obscured)

1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
26
26
26
26
26
26
61
61

Medium Clouds (% Sky Obscured)

9
9
9
9
27
27
27
27
27
27
1
1
1
1
1
1
11
11
11
11
11
11
59
59

High Clouds (% Sky Obscured)

25
25
25
25
88
88
88
88
88
88
38
38
38
38
38
38
0
0
0
0
0
0
99
99

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

2
2
2
1
1
1
2
0
0
0
0
0
6
6
7
8
6
5
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0
0
0.02
0.03
0.03
0.03
0.02
0.01
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
21
21
19
18
17
16
16
15
14
14
14
14
14
14
14
14
14
15
16
17
18
19
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
75
77
81
85
88
91
97
100
100
100
100
100
100
100
100
99
96
88
81
72
63
56
54

Pressure (mb)

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

Ozone (du)

282
283
283
284
284
284
283
282
283
283
283
282
281
280
279
277
277
279
281
282
282
280
279
278

Forecast for Hilversum, Hilversum, NL (52.22,5.15)

Generated: 20/09/21 16:49:17. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+2.00