Forecast for Swarthmore, Delaware, United States of America (39.90,-75.35)

  Est. Sky Quality:  18.68 Magnitude.  Class 7 Bortle.  3.65 mcd/m2 Brightness.  3482.63 μcd/m2 Artificial Brightness.

Generated: 10/07/25 18:53:14. Forecast: 10/07/25 to 16/07/25. Timezone: UTC-4.00

Annual Darkness Embed Forecast Center on Midday Center on Midnight
Thursday 10
Full Moon 100% Moon Rise 20:56 Moon Set 06:06
  • 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 OK
  • 09 OK
  • 10 Bad
  • 11 Bad
  • 12 OK
  • 13 Bad
  • 14 Bad
  • 15 Bad
  • 16 Bad
  • 17 Bad
Sun - Rise: 05:43, Set: 20:31, Transit: 13:07. Moon - Rise: 20:56, Set: 06:06. Civil Dark: 21:03 - 05:11. Nautical Dark: 21:43 - 04:31. Astro Dark: 22:29 - 03:45
Friday 11
Waning Gibbous 98% Moon Rise 21:33 Moon Set 07:16
  • 18 Bad
  • 19 Bad
  • 20 Bad
  • 21 OK
  • 22 OK
  • 23 OK
  • 00 Bad
  • 01 Bad
  • 02 Bad
  • 03 Bad
  • 04 Bad
  • 05 Bad
  • 06 Bad
  • 07 OK
  • 08 OK
  • 09 Bad
  • 10 OK
  • 11 OK
  • 12 Bad
  • 13 Bad
  • 14 Bad
  • 15 Bad
  • 16 Bad
  • 17 Bad
Sun - Rise: 05:44, Set: 20:30, Transit: 13:07. Moon - Rise: 21:33, Set: 07:16. Civil Dark: 21:02 - 05:12. Nautical Dark: 21:42 - 04:32. Astro Dark: 22:28 - 03:46
Saturday 12
Waning Gibbous 94% Moon Rise 22:05 Moon Set 08:26
  • 18 Bad
  • 19 Bad
  • 20 Good
  • 21 Good
  • 22 OK
  • 23 OK
  • 00 Bad
  • 01 OK
  • 02 Bad
  • 03 Bad
  • 04 Bad
  • 05 Bad
  • 06 Bad
  • 07 Bad
  • 08 Bad
  • 09 OK
  • 10 OK
  • 11 OK
  • 12 OK
  • 13 Bad
  • 14 Bad
  • 15 Bad
  • 16 Bad
  • 17 Bad
Sun - Rise: 05:44, Set: 20:30, Transit: 13:07. Moon - Rise: 22:05, Set: 08:26. Civil Dark: 21:02 - 05:13. Nautical Dark: 21:42 - 04:33. Astro Dark: 22:27 - 03:47
Sunday 13
Waning Gibbous 87% Moon Rise 22:32 Moon Set 09:36
  • 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
  • 16 Bad
  • 17 Bad
Sun - Rise: 05:45, Set: 20:29, Transit: 13:07. Moon - Rise: 22:32, Set: 09:36. Civil Dark: 21:01 - 05:14. Nautical Dark: 21:41 - 04:34. Astro Dark: 22:26 - 03:49
Monday 14
Waning Gibbous 78% Moon Rise 22:56 Moon Set 10:46
  • 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 Good
  • 08 OK
  • 09 OK
  • 10 OK
  • 11 OK
  • 12 Bad
  • 13 Bad
  • 14 Bad
  • 15 Bad
  • 16 Bad
  • 17 Bad
Sun - Rise: 05:46, Set: 20:29, Transit: 13:07. Moon - Rise: 22:56, Set: 10:46. Civil Dark: 21:00 - 05:14. Nautical Dark: 21:40 - 04:35. Astro Dark: 22:25 - 03:50
Tuesday 15
Waning Gibbous 68% Moon Rise 23:19 Moon Set 11:56
  • 18 Bad
  • 19 OK
  • 20 Good
  • 21 Good
  • 22 Good
  • 23 Good
  • 00 Good
  • 01 Good
  • 02 Good
  • 03 Good
  • 04 Good
  • 05 OK
  • 06 OK
  • 07 Bad
  • 08 Bad
  • 09 Bad
  • 10 Bad
  • 11 Bad
  • 12 Bad
  • 13 Bad
  • 14 Bad
  • 15 Bad
  • 16 Bad
  • 17 Bad
Sun - Rise: 05:47, Set: 20:28, Transit: 13:07. Moon - Rise: 23:19, Set: 11:56. Civil Dark: 21:00 - 05:15. Nautical Dark: 21:39 - 04:36. Astro Dark: 22:24 - 03:51
Wednesday 16
Waning Gibbous 57% Moon Rise 23:43 Moon Set 13:08
  • 18 OK
  • 19 OK
  • 20 OK
  • 21 Good
  • 22 Good
  • 23 Good
  • 00 Good
  • 01 OK
  • 02 OK
  • 03 OK
  • 04 Good
  • 05 OK
  • 06 OK
  • 07 OK
  • 08 OK
  • 09 OK
  • 10 Good
  • 11 OK
  • 12 Bad
  • 13 Bad
Sun - Rise: 05:48, Set: 20:27, Transit: 13:07. Moon - Rise: 23:43, Set: 13:08. Civil Dark: 20:59 - 05:16. Nautical Dark: 21:38 - 04:37. Astro Dark: 22:23 - 03:52
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