Simunul Island

Island Tawi-Tawi island with centuries-old Muslim heritage site

island in Tawi‑Tawi, Philippines. Site of the Sheikh Karim ul‑Makhdum Mosque and an important early Islamic heritage site; visited for cultural history, traditional communities and as a local transport hub. Most visits are short day trips from Bongao.

Overview

Simunul Island is a small island in Tawi-Tawi province in the southwestern Philippines notable for its role in the spread of Islam in the Sulu Archipelago. It is most widely known for the mosque associated with early Muslim missionary activity.

What visitors find / highlights

The island contains the Sheikh Makdum Mosque, a wooden mosque that is traditionally regarded as the earliest Muslim place of worship in the country. Visitors also encounter a small, predominantly Muslim fishing community and simple coastal landscapes reached by short boat trips.

History

Local tradition holds that the missionary Sheikh Makdum introduced Islam to the area in the late 14th century, and the mosque on Simunul is tied to that early period of conversion; the existing structure has been repaired and maintained over centuries. Simunul has remained a religious and cultural site for the Tausug and Sama communities.

Location

Simunul sits in the Sulu Archipelago close to the island town of Bongao in Tawi-Tawi province, in the far southwest of the Philippine archipelago, and is reached by small boat from nearby islands.

  • Sheikh Makdum Mosque: Home to the historic Sheikh Makdum Mosque, traditionally regarded as the oldest mosque in the Philippines and a focal point of local Islamic history.
  • Access: Located in the Sulu Archipelago and accessible by boat from the nearby municipal center of Bongao in Tawi-Tawi.
Simunul Island
4.8980, 119.8210
Free (no official entrance/park admission)

How to Get to Simunul Island #

Simunul Island is in Tawi‑Tawi province just off Bongao town. The usual way in is to fly to Sanga‑Sanga (Bongao) Airport (flights are typically via Zamboanga) and then take a short motorized banca from Bongao pier to Simunul (boat rides commonly take on the order of 10-30 minutes). The Bongao town pier is within a few minutes’ drive or walk from the airport and town center, and local boats land close to the island’s main settlements.

Tips for Visiting Simunul Island #

  • Catch a morning motorized banca from Bongao (the main town in Tawi‑Tawi) to fit local boat schedules and to have the cooler part of the day for exploring.
  • Visit the Sheik Karim ul‑Makhdum Mosque and the island's historic sites with cultural sensitivity: dress modestly, ask before photographing people or interior religious spaces, and check with locals about visiting hours.
  • Facilities are limited on Simunul - most services are in Bongao - so plan your return boat time and bring any essentials; hiring a local guide or arranging transport through Bongao makes logistics simpler.

Best Time to Visit Simunul Island #

For Simunul Island, aim for the drier months (roughly February-April) when seas are calmer and travel is easier.

Drier months (best for travel)
February-April · 25-32°C
Relatively drier and calmer seas compared with other parts of the year, making boat travel and outdoor activities easier.
Wetter months
September-January · 25-32°C
Heavier rainfall and rougher sea conditions are common; schedules for boats and tours can be disrupted.

Weather & Climate near Simunul Island #

Climate

Simunul Island's climate is classified as Tropical Rainforest - Tropical Rainforest climate with consistently warm temperatures year-round. Temperatures range from 23°C to 31°C. Abundant rainfall (1736 mm/year), wettest in November, distributed fairly evenly throughout the year.

Air Quality: AQI 48 Good
Best Time to Visit
AprilFebruaryMarch
Temperature & Rainfall
Temperature Range
31°
Warmest Month
25°
Coldest Month
Monthly Conditions

January

January is warm with stifling humidity (dew point 24°C). Significant rainfall (152 mm) and mostly overcast skies.

67 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 30°
83%
Humidity
Very Humid

Weather

152 mm
Rainfall
2.2 m/s
Wind
Calm
2.1
UV Index
Extreme
11.8h daylight

February

February is warm with muggy conditions (dew point 24°C). Significant rainfall (123 mm) and partly cloudy skies.

75 Very Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 30°
82%
Humidity
Very Humid

Weather

123 mm
Rainfall
2.1 m/s
Wind
Calm
2.4
UV Index
Extreme
11.9h daylight

March

March is warm with muggy conditions (dew point 24°C). Significant rainfall (118 mm) and partly cloudy skies.

75 Very Good

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 30°
80%
Humidity
Very Humid

Weather

118 mm
Rainfall
2.0 m/s
Wind
Calm
2.6
UV Index
Extreme
12.0h daylight

April

April is hot, feeling like 30°C due to high humidity. Significant rainfall (124 mm) and partly cloudy skies.

79 Very Good

Comfort

30°
Feels Like Hot
27°C
Temperature
23° 31°
78%
Humidity
Very Humid

Weather

124 mm
Rainfall
1.8 m/s
Wind
Calm
2.7
UV Index
Extreme
12.1h daylight

May

May is the hottest month, feeling like 30°C with oppressive humidity. Significant rainfall (161 mm) and partly cloudy skies.

63 Good

Comfort

30°
Feels Like Hot
27°C
Temperature
23° 31°
80%
Humidity
Very Humid

Weather

161 mm
Rainfall
1.6 m/s
Wind
Calm
2.5
UV Index
Extreme
12.2h daylight

June

June is hot, feeling like 30°C with oppressive humidity. Significant rainfall (175 mm) and mostly overcast skies.

67 Good

Comfort

30°
Feels Like Hot
27°C
Temperature
23° 31°
81%
Humidity
Very Humid

Weather

175 mm
Rainfall
1.5 m/s
Wind
Calm
2.1
UV Index
Extreme
12.3h daylight

July

July is hot, feeling like 30°C with oppressive humidity. Significant rainfall (138 mm) and mostly overcast skies.

69 Good

Comfort

30°
Feels Like Hot
27°C
Temperature
23° 31°
82%
Humidity
Very Humid

Weather

138 mm
Rainfall
1.8 m/s
Wind
Calm
2.2
UV Index
Extreme
12.2h daylight

August

August is hot, feeling like 30°C with oppressive humidity. Significant rainfall (121 mm) and partly cloudy skies.

67 Good

Comfort

30°
Feels Like Hot
27°C
Temperature
23° 31°
82%
Humidity
Very Humid

Weather

121 mm
Rainfall
2.2 m/s
Wind
Calm
2.4
UV Index
Extreme
12.2h daylight

September

September is warm with stifling humidity (dew point 24°C). Significant rainfall (122 mm) and partly cloudy skies.

75 Very Good

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 31°
81%
Humidity
Very Humid

Weather

122 mm
Rainfall
1.9 m/s
Wind
Calm
2.4
UV Index
Extreme
12.0h daylight

October

October is warm with stifling humidity (dew point 24°C). Significant rainfall (166 mm) and partly cloudy skies.

71 Very Good

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 31°
81%
Humidity
Very Humid

Weather

166 mm
Rainfall
1.7 m/s
Wind
Calm
2.3
UV Index
Extreme
11.9h daylight

November

November is warm with stifling humidity (dew point 24°C). The wettest month with heavy rain (184 mm) and partly cloudy skies.

71 Very Good

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 30°
81%
Humidity
Very Humid

Weather

184 mm
Rainfall
1.4 m/s
Wind
Calm
2.2
UV Index
Extreme
11.8h daylight

December

December is warm with stifling humidity (dew point 24°C). Significant rainfall (152 mm) and mostly overcast skies.

67 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 30°
82%
Humidity
Very Humid

Weather

152 mm
Rainfall
1.8 m/s
Wind
Calm
2.1
UV Index
Extreme
11.7h daylight

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