Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 28

Waxing Gibbous 92%

17:04

04:29

03 Good
04 Good
05 Good
06 OK
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

Sun - Rise: 06:09, Set: 20:05, Transit: 13:07. Moon - Rise: 17:04, Set: 04:29. Civil Dark: 20:35 - 05:39. Nautical Dark: 21:12 - 05:02. Astro Dark: 21:52 - 04:22

Total Clouds (% Sky Obscured)

0
0
18
24
0
0
0
0
0
0
0
2
0
0
0
0
1
1
1
0
0
4
5
4

Low Clouds (% Sky Obscured)

0
0
16
13
0
0
0
0
0
0
0
0
0
0
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
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
4
5
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
80
80
80
73
62
50
41
34
33
33
32
31
32
34
35
42
52
56
55
57
57
57
56

Pressure (mb)

1017
1017
1017
1017
1016
1017
1017
1017
1017
1017
1016
1016
1016
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

366
367
368
368
367
366
362
359
360
359
356
353
352
352
351
350
349
347
347
348
347
347
346
345

Wednesday 29

Waxing Gibbous 97%

18:08

04:48

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

Sun - Rise: 06:08, Set: 20:06, Transit: 13:07. Moon - Rise: 18:08, Set: 04:48. Civil Dark: 20:36 - 05:38. Nautical Dark: 21:13 - 05:01. Astro Dark: 21:53 - 04:21

Total Clouds (% Sky Obscured)

17
47
6
20
21
13
40
11
23
20
50
38
20
33
50
48
86
69
98
99
73
77
91
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
16
49
50
55
59
3
9
60
59

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
4
4
10
23
31
27
42
31
47
48
50
45
37
37

High Clouds (% Sky Obscured)

17
47
6
20
21
13
27
11
23
20
50
31
5
3
7
7
29
15
83
99
73
77
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
5
1
4

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

Chance of Frost

Temperature (°C)

12
12
11
11
12
14
18
20
22
23
24
24
23
23
23
22
20
19
19
18
18
17
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
58
57
57
56
48
40
31
26
24
24
25
26
27
29
32
40
41
41
41
41
44
46
44

Pressure (mb)

1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016

Ozone (du)

344
343
343
343
344
345
346
346
348
348
348
348
347
348
348
350
350
350
350
350
350
349
347
345

Thursday 30

Waxing Gibbous 99%

19:13

05:09

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:06, Set: 20:07, Transit: 13:07. Moon - Rise: 19:13, Set: 05:09. Civil Dark: 20:37 - 05:36. Nautical Dark: 21:14 - 04:59. Astro Dark: 21:55 - 04:19

Total Clouds (% Sky Obscured)

96
96
95
96
99
98
94
90
90
91
96
100
100
88
71
74
94
87
83
83
87
86
82
63

Low Clouds (% Sky Obscured)

49
31
38
44
42
49
55
22
35
48
38
65
81
53
14
20
43
50
49
64
75
75
73
52

Medium Clouds (% Sky Obscured)

94
96
82
73
84
98
94
90
90
91
95
100
88
83
69
57
17
17
13
13
10
4
0
0

High Clouds (% Sky Obscured)

0
0
3
96
33
0
0
0
0
0
0
12
96
4
9
35
94
84
72
60
65
71
68
41

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
8
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 (%)

11
13
14
13
10
8
1
3
12
19
24
26
29
34
40
40
36
26
23
14
3
3
1
3

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

Chance of Frost

Temperature (°C)

16
16
16
15
15
17
18
20
21
22
22
22
21
21
20
20
19
18
17
16
16
15
15
14

Feels Like (°C)

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

Dew Point (°C)

5
5
6
6
7
7
7
6
7
9
10
10
11
10
10
10
11
11
12
13
13
13
11
10

Relative Humidity (%)

46
48
52
54
57
50
47
42
41
43
47
47
51
51
51
52
56
65
71
81
83
83
79
78

Pressure (mb)

1016
1016
1016
1016
1016
1016
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1021

Ozone (du)

342
341
341
340
340
339
339
340
340
340
340
341
342
342
343
345
349
353
358
364
373
377
378
378

Friday 1

Full Moon 100%

20:18

05:32

03 Bad
04 Bad
05 OK
06 OK
07 OK
08 OK
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

Sun - Rise: 06:05, Set: 20:08, Transit: 13:07. Moon - Rise: 20:18, Set: 05:32. Civil Dark: 20:39 - 05:35. Nautical Dark: 21:16 - 04:57. Astro Dark: 21:56 - 04:17

Total Clouds (% Sky Obscured)

58
50
43
35
29
19
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

46
38
35
27
22
13
6
0
0
0
0
0
0
0
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
0
0
0
0
0

High Clouds (% Sky Obscured)

20
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 (%)

5
2
5
2
2
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)

6
6
6
6
6
7
6
6
5
5
5
7
9
10
11
9
8
5
3
2
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
9
8
7
7
5
4
3
3
2
0
1
4
8
9
10
10
11
11
11
10
10
10
10

Relative Humidity (%)

78
76
73
73
70
58
48
40
35
31
25
25
32
43
50
54
61
71
74
76
76
78
80
81

Pressure (mb)

1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022

Ozone (du)

378
378
379
380
380
379
381
383
384
383
383
380
377
376
376
376
376
376
377
378
378
378
377
376

Saturday 2

Waning Gibbous 98%

21:23

05:58

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

Sun - Rise: 06:04, Set: 20:09, Transit: 13:07. Moon - Rise: 21:23, Set: 05:58. Civil Dark: 20:40 - 05:33. Nautical Dark: 21:17 - 04:56. Astro Dark: 21:58 - 04:15

Total Clouds (% Sky Obscured)

0
0
0
0
0
6
12
19
17
16
17
28
38
46
53
60
65
69
77
81
84
81
79
77

Low Clouds (% Sky Obscured)

0
0
0
0
0
6
12
19
17
16
17
15
11
11
8
6
4
2
1
0
4
8
9
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
14

High Clouds (% Sky Obscured)

0
0
0
0
0
1
1
1
2
3
5
13
15
20
9
19
40
58
77
81
84
81
71
71

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
13
13
13
13
14
17
19
20
20
19
19
19
19
19
18
18
18
14
14
14
14
14
13

Dew Point (°C)

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

Relative Humidity (%)

83
80
77
75
67
57
53
49
44
43
43
45
47
49
52
56
61
66
70
73
76
78
79
80

Pressure (mb)

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

Ozone (du)

374
373
373
372
372
372
372
372
370
369
368
367
365
363
361
362
363
363
365
367
369
371
372
374

Sunday 3

Waning Gibbous 95%

22:25

06:29

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

Sun - Rise: 06:02, Set: 20:10, Transit: 13:06. Moon - Rise: 22:25, Set: 06:29. Civil Dark: 20:41 - 05:32. Nautical Dark: 21:19 - 04:54. Astro Dark: 22:00 - 04:13

Total Clouds (% Sky Obscured)

76
75
65
54
42
45
44
45
44
43
46
40
34
27
35
43
51
66
81
100
100
99
100
100

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

27
41
39
36
34
24
15
5
5
5
8
7
9
7
9
8
5
6
7
8
11
12
14
35

High Clouds (% Sky Obscured)

71
71
49
27
6
9
13
16
18
20
22
19
17
14
27
42
51
66
81
100
100
99
100
100

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
1
0
0
0
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
83
77
74
69
61
54
47
45
43
41
43
43
44
49
54
61
64
66
70
70
71
71

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

374
373
372
371
369
368
366
365
364
363
362
360
359
358
357
357
356
355
355
355
355
354
353
352

Monday 4

Waning Gibbous 93%

23:24

07:07

Sun - Rise: 06:01, Set: 20:11, Transit: 13:06. Moon - Rise: 23:24, Set: 07:07. Civil Dark: 20:42 - 05:31. Nautical Dark: 21:20 - 04:53. Astro Dark: 22:01 - 04:11

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 Testaccio, Province of Rome, Italy (41.86,12.48)

Generated: 28/04/26 03:49:10. Forecast: 28/04/26 to 04/05/26. Timezone: UTC+2.00