| Overseas Department: | French Guiana |
|---|---|
| Country: | France |
| Type: | Hills |
| Lat/Long: | 4°14'N / 51°44'W |
| Currency: | Euro (EUR) |
| Languages: | French |
| Also known as: | Mont de l'Observatoire, Monts de l'Observatoire |

°F
Weather
86 °F
Passing clouds.
87 / 74 °F
| Sat 6. | 88 / 76 °F | |
| Sun 7. | 87 / 77 °F |
Weather by CustomWeather, © 2025
More Sun & Moon in Monts de l'Observatoire
+ Show More Twilight and Moon Phase Information
Solar Noon
Sun in South: 12:17 pm
Altitude: 63.3°
Altitude: 63.3°
Astronomical
Twilight
5:06 am – 5:32 am
7:02 pm – 7:28 pm
7:02 pm – 7:28 pm
Nautical
Twilight
5:32 am – 5:58 am
6:36 pm – 7:02 pm
6:36 pm – 7:02 pm
Civil
Twilight
5:58 am – 6:20 am
6:14 pm – 6:36 pm
6:14 pm – 6:36 pm
Previous
Moon Phase
Full Moon
December 4, 2025
8:14 pm
December 4, 2025
8:14 pm
Next
Moon Phase
Third Quarter
December 11, 2025
5:51 pm
December 11, 2025
5:51 pm

Calendar & Holidays
Upcoming Holidays

Airports
- Cayenne - Félix Eboué Airport, CAY
About 59 mi NW of Monts de l'Observatoire - Johan Adolf Pengel International Airport, PBM (Suriname)
About 253 mi WNW of Monts de l'Observatoire

Monts de l'Observatoire
French Guiana
5:1601pm
Friday, December 5, 2025




