Diogo Island
Island Remote Philippine island in Cagayan Sea
Part of the Babuyan Islands, Diogo Island attracts divers and birdwatchers with steep shorelines, coral reefs and remote beaches; trips run from mainland Cagayan for multi-day island-hopping.
Diogo Island is a small, remote island in the northern Philippines within Cagayan province. It is part of the island groups north of Luzon and has no permanent infrastructure or towns.
The island is volcanic in origin with steep shorelines and limited landing spots, so access is by private boat and is typically infrequent. There are no major facilities and the island is visited mainly for occasional fishing or scientific surveys.
Diogo Island sits offshore in the northern Philippine maritime region and is administered as part of Cagayan Valley.
- Administration: Part of the northern Philippine island groups and administered under Cagayan province; the island is remote and has no significant infrastructure.
How to Get to Diogo Island #
Diogo Island is reached only by private boat or charter from the Cagayan mainland (ports around Santa Ana or Aparri) or from the larger Calayan/Claveria crossings. Expect multi-hour passages; plan for sea conditions and secure local skipper experience.
Tips for Visiting Diogo Island #
- Plan charters from Cagayan's main ports (Aparri or Santa Ana) and allow large weather margins; seas in this region change quickly.
- Visit in the dry season when the Babuyan and Bashi Channel swells are smaller; a calm morning is essential for small-boat excursions.
- Bring all necessary supplies and medical kit-there are no services on remote islets.
- Respect local fishing zones and ask permission before landing near inhabited islands in the chain.
Best Time to Visit Diogo Island #
The safest time for sea travel and island access is the dry season (roughly November-April); outside of that window trips can be canceled at short notice.
Weather & Climate near Diogo Island #
Tropical climate with hot summers (peaking in July) and warm winters (coldest in January). Temperatures range from 19°C to 31°C. Heavy rainfall (2671 mm/year), wettest in October.
January
January is mild with highs of 24°C and lows of 19°C. Heavy rain (206 mm) and mostly overcast skies.
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February
February is mild with highs of 25°C and lows of 19°C. Significant rainfall (156 mm) and partly cloudy skies.
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March
March is mild with highs of 26°C and lows of 21°C. Significant rainfall (106 mm) and partly cloudy skies.
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April
April is warm with muggy conditions (dew point 23°C). Regular rainfall (89 mm) and partly cloudy skies.
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May
May is warm with stifling humidity (dew point 25°C). Significant rainfall (169 mm) and partly cloudy skies.
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June
June is hot, feeling like 32°C with oppressive humidity. Heavy rain (207 mm) and partly cloudy skies.
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July
July is the hottest month, feeling like 32°C with oppressive humidity. Heavy rain (244 mm) and partly cloudy skies.
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August
August is hot, feeling like 32°C with oppressive humidity. Heavy rain (272 mm) and mostly overcast skies.
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September
September is hot, feeling like 30°C with oppressive humidity. Heavy rain (317 mm) and mostly overcast skies.
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October
October is warm with muggy conditions (dew point 24°C). The wettest month with heavy rain (349 mm) and mostly overcast skies.
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November
November is warm with muggy conditions (dew point 23°C). Heavy rain (298 mm) and mostly overcast skies.
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December
December is mild with highs of 25°C and lows of 20°C. Heavy rain (258 mm) and mostly overcast skies.
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