Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

20:05

07:32

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

Sun - Rise: 07:27, Set: 19:44, Transit: 13:34. Moon - Rise: 20:05, Set: 07:32. Civil Dark: 20:18 - 06:53. Nautical Dark: 20:58 - 06:12. Astro Dark: 21:40 - 05:30

Total Clouds (% Sky Obscured)

100
100
96
42
17
9
0
3
2
2
99
95
30
40
82
94
5
95
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

99
100
95
31
17
9
0
3
2
1
1
0
0
0
2
0
0
0
0
0
2
6
48
45

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

64
45
12
17
0
0
0
0
0
0
99
95
29
40
82
94
5
94
97
100
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
8
8
8
8
8
8
8
8
8
8
8
7
7
7
7
8
8
9
9
9
9

Relative Humidity (%)

52
53
56
59
64
68
71
75
79
81
84
84
84
85
87
87
86
80
72
65
61
56
54
54

Pressure (mb)

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

Ozone (du)

288
288
288
289
289
290
292
290
287
285
284
285
286
287
286
284
284
284
283
283
284
283
284
285

Tuesday 21

Full Moon 99%

20:18

08:46

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 OK
14 Good
15 Good

Sun - Rise: 07:28, Set: 19:41, Transit: 13:34. Moon - Rise: 20:18, Set: 08:46. Civil Dark: 20:15 - 06:54. Nautical Dark: 20:55 - 06:14. Astro Dark: 21:38 - 05:32

Total Clouds (% Sky Obscured)

100
93
93
91
87
85
91
92
94
96
97
98
98
97
95
91
95
92
73
84
69
31
2
2

Low Clouds (% Sky Obscured)

50
69
40
10
2
1
2
10
10
32
18
13
11
12
5
4
5
2
6
9
6
4
2
2

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
0
0

High Clouds (% Sky Obscured)

100
89
90
90
86
85
91
91
93
94
97
98
98
96
95
91
95
91
72
82
66
27
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
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
7
6
6
4
3
3
3
4
5
5
5
6
7
7
7
7
8
9
9
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
10
10
11
11
10
10
11

Relative Humidity (%)

54
56
59
64
68
71
74
77
81
82
82
83
84
84
85
85
83
80
75
71
67
63
62
62

Pressure (mb)

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

Ozone (du)

285
285
283
281
280
281
280
279
278
277
275
274
273
272
271
272
272
272
273
273
273
272
274
274

Wednesday 22

Waning Gibbous 96%

20:31

09:59

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

Sun - Rise: 07:30, Set: 19:39, Transit: 13:33. Moon - Rise: 20:31, Set: 09:59. Civil Dark: 20:13 - 06:56. Nautical Dark: 20:53 - 06:16. Astro Dark: 21:35 - 05:34

Total Clouds (% Sky Obscured)

2
0
0
0
0
0
0
70
48
0
13
62
16
31
84
98
88
88
88
88
88
88
93
93

Low Clouds (% Sky Obscured)

2
0
0
0
0
0
0
6
4
0
9
12
15
25
19
25
19
19
19
19
19
19
37
37

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
9
9

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
69
46
0
6
56
1
8
80
98
86
86
86
86
86
86
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
4
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
0.02
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
66
69
71
74
76
77
80
86
89
91
90
90
90
91
91
89
85
80
77
73
71
73
77

Pressure (mb)

1026
1026
1025
1025
1025
1024
1024
1023
1023
1022
1021
1020
1019
1019
1018
1018
1018
1017
1017
1016
1016
1016
1016
1015

Ozone (du)

275
275
275
275
273
274
274
273
273
273
271
270
270
272
275
275
275
275
275
275
274
274
276
277

Thursday 23

Waning Gibbous 91%

20:44

11:11

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

Sun - Rise: 07:32, Set: 19:37, Transit: 13:33. Moon - Rise: 20:44, Set: 11:11. Civil Dark: 20:10 - 06:58. Nautical Dark: 20:50 - 06:18. Astro Dark: 21:32 - 05:36

Total Clouds (% Sky Obscured)

93
93
93
93
41
41
41
41
41
41
20
20
20
20
20
20
48
48
48
48
48
48
31
31

Low Clouds (% Sky Obscured)

37
37
37
37
27
27
27
27
27
27
16
16
16
16
16
16
47
47
47
47
47
47
31
31

Medium Clouds (% Sky Obscured)

9
9
9
9
0
0
0
0
0
0
8
8
8
8
8
8
2
2
2
2
2
2
0
0

High Clouds (% Sky Obscured)

89
89
89
89
20
20
20
20
20
20
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
None
None
None
None
None
None
None

Precipitation Probability (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

19
19
17
17
17
15
14
14
14
14
15
15
14
14
13
12
10
10
12
14
15
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
78
78
77
78
78
79
82
87
89
90
91
93
96
96
95
93
90
83
78
73
72
71
70

Pressure (mb)

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

Ozone (du)

278
280
281
282
281
281
281
281
281
280
282
283
282
281
281
280
279
279
278
277
276
276
274
273

Friday 24

Waning Gibbous 84%

20:59

12:23

16 OK
17 OK
18 OK
19 OK
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 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:33, Set: 19:34, Transit: 13:33. Moon - Rise: 20:59, Set: 12:23. Civil Dark: 20:08 - 06:59. Nautical Dark: 20:48 - 06:19. Astro Dark: 21:30 - 05:38

Total Clouds (% Sky Obscured)

31
31
31
31
1
1
1
1
1
1
5
5
5
5
5
5
46
46
46
46
46
46
99
99

Low Clouds (% Sky Obscured)

31
31
31
31
1
1
1
1
1
1
0
0
0
0
0
0
9
9
9
9
9
9
89
89

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
5
5
5
5
5
5
41
41
41
41
41
41
91
91

ISS Passover

Visibility (miles)

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

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
3
3
2
2
1
1
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
69
72
74
79
83
86
87
91
94
97
98
99
99
99
99
98
95
92
91
86
82
80
78

Pressure (mb)

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

Ozone (du)

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

Saturday 25

Waning Gibbous 77%

21:17

13:34

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

Sun - Rise: 07:35, Set: 19:32, Transit: 13:32. Moon - Rise: 21:17, Set: 13:34. Civil Dark: 20:06 - 07:01. Nautical Dark: 20:46 - 06:21. Astro Dark: 21:27 - 05:40

Total Clouds (% Sky Obscured)

99
99
99
99
91
91
91
91
91
91
18
18
18
18
18
18
16
16
16
16
16
16
12
12

Low Clouds (% Sky Obscured)

89
89
89
89
37
37
37
37
37
37
17
17
17
17
17
17
10
10
10
10
10
10
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
5
5
5
5
5
5
2
2
2
2
2
2
0
0
0
0
0
0
11
11

High Clouds (% Sky Obscured)

91
91
91
91
87
87
87
87
87
87
0
0
0
0
0
0
6
6
6
6
6
6
2
2

ISS Passover

Visibility (miles)

7
8
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
9
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
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
10
9
9
8
8
7
7
7
8
8
9
9
9
10
10
11
11
12
12
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
82
88
90
92
92
93
97
99
100
100
100
100
100
98
96
94
91
87
83
79
78
78

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

270
271
272
272
273
274
275
276
277
278
279
279
279
279
279
279
280
280
280
280
281
281
281
282

Sunday 26

Waning Gibbous 68%

21:40

14:43

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

Sun - Rise: 07:37, Set: 19:29, Transit: 13:32. Moon - Rise: 21:40, Set: 14:43. Civil Dark: 20:03 - 07:03. Nautical Dark: 20:43 - 06:23. Astro Dark: 21:24 - 05:42

Total Clouds (% Sky Obscured)

12
12
12
12
91
91
91
91
91
91
6
6
6
6
6
6
53
53
53
53
53
53
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
6
6
6
6
6
6
20
20
20
20
20
20
51
51

Medium Clouds (% Sky Obscured)

11
11
11
11
8
8
8
8
8
8
0
0
0
0
0
0
6
6
6
6
6
6
99
99

High Clouds (% Sky Obscured)

2
2
2
2
90
90
90
90
90
90
0
0
0
0
0
0
45
45
45
45
45
45
97
97

ISS Passover

Visibility (miles)

8
8
9
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
2
3
3
3
3
2
2
2
3
4
7
8
8
7
6
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.03
0.04
0.04
0.04
0.03
0.02
0.01
0.01
0.01
0.02
0.02
0.03
0.04
0.04
0.03
0.01
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
11
11
11
11
10
9
8
7
6
6
6
6
6
6
6
6
6
6
6
6
7
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
81
83
85
88
90
91
91
95
97
98
99
100
100
100
99
97
94
89
83
77
74
72
71

Pressure (mb)

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

Ozone (du)

283
284
283
283
282
282
281
281
283
284
284
281
277
274
275
278
281
282
283
283
281
279
278
277

Forecast for Overveen, Bloemendaal, NL (52.39,4.61)

Generated: 20/09/21 16:45:42. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+2.00