Assumption Island

Island Remote Seychelles island with coral reefs and wildlife

A low coral island in the Outer Islands of Seychelles, known for white-sand beaches, reef diving, fishing and nesting seabirds. Visitors arrive by boat for snorkeling, scuba and quiet beaches away from Mahé’s main tourist hubs.

Main image
Aldabra Atoll and Assumption Island.jpg
Assumption Island (rotated 45 degrees clockwise).jpg
Assumption Island (rotated 45 degrees clockwise, cropped, corners filled).jpg
Assumption Island Seychelles.jpg
Assumption Island.JPG
FMIB 36508 Nest of Pink-Footed Gannet (Sula piscator) on Assumption Island.jpeg
FMIB 36530 Assumption Island, Indian Ocean.jpeg
ISS055-E-6904 - View of Seychelles.jpg
Assumption Island
Assumption Island, Outer Islands, Seychelles
-9.7287, 46.5164

How to Get to Assumption Island #

Assumption Island is one of the Seychelles’ outer islands and has no regular public ferry service. It is reached only by private yacht or by charter flight from Mahé (Victoria); charter flights land on the island’s airstrip and private vessels make multi‑hour passages. Visitors generally need prior permission from Seychelles authorities or tour operators to land.

Best Time to Visit Assumption Island #

Visit during the drier trade-wind months (May-October) or the calm intermonsoon months (April, October) for the best marine conditions.

Southeast trade-wind season (drier)
May-October · 24-29°C
Generally drier and breezier-good for snorkeling, diving and boating; seas are often calmer during the intermonsoon windows.
Northwest monsoon (wetter)
November-March · 24-30°C
Warmer, wetter months with more rain and occasionally rougher seas; some marine activities may be affected.
Best intermonsoon windows
April and October · 24-29°C
Often the calmest seas and best overall conditions for diving and boat access.

Weather & Climate near Assumption Island #

Climate

Tropical climate with consistently warm temperatures year-round. Temperatures range from 21°C to 31°C. Moderate rainfall (954 mm/year) with a pronounced dry season.

Best Time to Visit
OctoberSeptemberAugust
Temperature & Rainfall
Temperature Range
30°
Warmest Month
22°
Coldest Month
Monthly Conditions

January

January is hot, feeling like 31°C due to high humidity. The wettest month with heavy rain (192 mm) and partly cloudy skies.

72 Very Good

Comfort

31°
Feels Like Hot
28°C
Temperature
25° 31°
78%
Humidity
Very Humid

Weather

192 mm
Rainfall
3.2 m/s
Wind
Light Breeze
2.7
UV Index
Extreme
12.5h daylight

February

February is hot, feeling like 31°C due to high humidity. Significant rainfall (118 mm) and partly cloudy skies.

75 Very Good

Comfort

31°
Feels Like Hot
28°C
Temperature
25° 31°
78%
Humidity
Very Humid

Weather

118 mm
Rainfall
2.9 m/s
Wind
Calm
2.9
UV Index
Extreme
12.3h daylight

March

March is the hottest month, feeling like 32°C due to high humidity. Significant rainfall (172 mm) and partly cloudy skies.

75 Very Good

Comfort

32°
Feels Like Hot
28°C
Temperature
25° 31°
79%
Humidity
Very Humid

Weather

172 mm
Rainfall
2.9 m/s
Wind
Calm
2.8
UV Index
Extreme
12.0h daylight

April

April is hot, feeling like 31°C due to high humidity. Significant rainfall (112 mm) and partly cloudy skies.

79 Very Good

Comfort

31°
Feels Like Hot
28°C
Temperature
24° 31°
79%
Humidity
Very Humid

Weather

112 mm
Rainfall
2.6 m/s
Wind
Calm
2.5
UV Index
Extreme
11.8h daylight

May

May is hot, feeling like 30°C due to high humidity. Moderate rainfall (45 mm).

88 Excellent

Comfort

30°
Feels Like Hot
27°C
Temperature
24° 30°
78%
Humidity
Very Humid

Weather

45 mm
Rainfall
3.3 m/s
Wind
Light Breeze
2.1
UV Index
Extreme
11.6h daylight

June

June is warm with highs of 29°C and lows of 22°C. Moderate rainfall (37 mm) and partly cloudy skies.

88 Excellent

Comfort

26°
Feels Like Warm
26°C
Temperature
22° 29°
77%
Humidity
Very Humid

Weather

37 mm
Rainfall
4.3 m/s
Wind
Light Breeze
1.9
UV Index
Very High
11.5h daylight

July

July is warm with highs of 28°C and lows of 22°C. Moderate rainfall (37 mm) and partly cloudy skies.

88 Excellent

Comfort

25°
Feels Like Warm
25°C
Temperature
22° 28°
77%
Humidity
Very Humid

Weather

37 mm
Rainfall
4.5 m/s
Wind
Light Breeze
1.9
UV Index
Very High
11.5h daylight

August

August is warm with highs of 28°C and lows of 21°C. Light rainfall.

92 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
21° 28°
78%
Humidity
Very Humid

Weather

20 mm
Rainfall
3.9 m/s
Wind
Light Breeze
2.3
UV Index
Extreme
11.7h daylight

September

September is warm with highs of 28°C and lows of 22°C. The driest month with just 8 mm.

94 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
22° 29°
78%
Humidity
Very Humid

Weather

8 mm
Rainfall
3.3 m/s
Wind
Light Breeze
2.6
UV Index
Extreme
11.9h daylight

October

October is warm with highs of 29°C and lows of 23°C. Light rainfall and mostly sunny skies.

96 Ideal

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 29°
79%
Humidity
Very Humid

Weather

10 mm
Rainfall
3.1 m/s
Wind
Light Breeze
2.8
UV Index
Extreme
12.2h daylight

November

November is hot, feeling like 30°C due to high humidity. Moderate rainfall (50 mm).

88 Excellent

Comfort

30°
Feels Like Hot
27°C
Temperature
24° 30°
78%
Humidity
Very Humid

Weather

50 mm
Rainfall
3.4 m/s
Wind
Light Breeze
2.9
UV Index
Extreme
12.4h daylight

December

December is hot, feeling like 30°C due to high humidity. Significant rainfall (153 mm).

78 Very Good

Comfort

31°
Feels Like Hot
28°C
Temperature
24° 31°
77%
Humidity
Very Humid

Weather

153 mm
Rainfall
3.9 m/s
Wind
Light Breeze
2.8
UV Index
Extreme
12.5h daylight

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