Asuncion Island at a Glance
When to Go
Best Time to Visit Asuncion Island
Best visited during the dry season (Dec-May) when seas are calmer and access is safer; avoid typhoon season.
Dry season
December-May · 24-30°C (75-86°F)
Calmer seas and better visibility for boats and snorkeling; safest time to attempt a visit.
Typhoon season
June-November · 25-32°C (77-90°F)
Higher risk of storms and rough seas; access often curtailed and not recommended.
Weather & Climate near Asuncion Island
Climate
Tropical climate with consistently warm temperatures year-round. Temperatures range from 20°C to 30°C. Abundant rainfall (1570 mm/year), wettest in August.
Air Quality:
AQI 12
Good
Temperature & Rainfall
Temperature Range
30°
Warmest Month
21°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | 21° - 25° | 23° | 95 mm | - | - | 6.1 m/s | - | - |
| February | - | 21° - 25° | 23° | 68 mm | - | - | 6.1 m/s | - | - |
| March | - | 21° - 26° | 24° | 63 mm | - | - | 5.7 m/s | - | - |
| April | - | 23° - 27° | 25° | 81 mm | - | - | 5.7 m/s | - | - |
| May | - | 24° - 28° | 26° | 90 mm | - | - | 4.8 m/s | - | - |
| June | - | 25° - 30° | 27° | 88 mm | - | - | 4.9 m/s | - | - |
| July | - | 25° - 30° | 28° | 190 mm | - | - | 4.6 m/s | - | - |
| August | - | 25° - 30° | 27° | 225 mm | - | - | 4.7 m/s | - | - |
| September | - | 25° - 30° | 27° | 221 mm | - | - | 5.0 m/s | - | - |
| October | - | 25° - 29° | 27° | 197 mm | - | - | 4.8 m/s | - | - |
| November | - | 24° - 28° | 26° | 139 mm | - | - | 5.0 m/s | - | - |
| December | - | 22° - 26° | 24° | 113 mm | - | - | 5.9 m/s | - | - |
Getting There & Around
How to Get to Asuncion Island
Asuncion is accessible only by private boat; charter vessels capable of open-ocean crossings operate from Saipan or Tinian. Because the island is uninhabited and often protected, visitors should obtain permission from the Commonwealth of the Northern Mariana Islands Division of Fish and Wildlife before travel and plan for self-sufficiency-there are no facilities or mooring buoys.
Tips for Visiting Asuncion Island
- Arrange landing permission-Asuncion is uninhabited and entry is managed by the Northern Mariana Islands authorities
- Bring full self-sufficiency (water, food, shelter) and a reliable, shallow-draft vessel because there are no docks
- Respect wildlife and nesting seabirds-Asuncion is a critical habitat and occasional access is restricted