Clouded Monitor

Clouded Monitor

Varanus nebulosus

Silhouette: Steven Traver · PhyloPic

Daily sighting probability ~40% · Likely
at Kuala Lumpur

In 3 days ~80% in a week >90%

206 Verified sightings at Kuala Lumpur
324 In all 5 parks From 2019 to 2026
October Best month
🌅 Crepuscular When it's spotted

About the Clouded Monitor

The clouded monitor (Varanus nebulosus) is a species of monitor lizard, native to Myanmar, Thailand and Laos, Vietnam, to West Malaysia, Singapore, Sumatra, and Java. They are excellent tree climbers. It belongs to the subgenus Empagusia along with the Bengal monitor, the Dumeril's monitor and other monitor lizards. It had previously been listed as a subspecies of Bengal monitor by some herpetologists. It is a diurnal monitor.

Clouded monitors can on occasion grow up to 1.5 metres long. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Taman Negara National Park 🇲🇾 Malaysia
~70%
2 Cat Tien National Park 🇻🇳 Vietnam
~60%
3 Kaeng Krachan National Park 🇹🇭 Thailand
~40%
4 Khao Sok National Park 🇹🇭 Thailand
~30%
5 Khao Yai National Park 🇹🇭 Thailand
~20%

Cities Where Found

# City Country Daily sighting probability
1 Singapore 🇸🇬 Singapore
~40%
2 Kuala Lumpur 🇲🇾 Malaysia
~40%
3 Johor Bahru 🇲🇾 Malaysia
~20%

Zoos & Centres Where Found

# Zoo / Centre Country
1 National Zoo of Malaysia 🇲🇾 Malaysia In captivity
2 Zagreb Zoo 🇭🇷 Croatia In captivity
3 Key West Aquarium 🇺🇸 United States In captivity

Before you go

What are the chances of seeing a Clouded Monitor in Kuala Lumpur?

Likely

About 40% of wildlife watchers report a Clouded Monitor sighting in Kuala Lumpur on a given day, based on 206 verified sightings from GBIF citizen-science data. It is the 3rd most-seen of the 39 reptiles we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.

When is the best time to see a Clouded Monitor in Kuala Lumpur?

May and October

In those months about 50% of wildlife watchers report a Clouded Monitor in Kuala Lumpur on a given day, against about 30% in June, the lowest month.

What time of day is best to see a Clouded Monitor?

Between 8 and 11 am

Across all the parks we cover, that three-hour window holds the most Clouded Monitor sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.

Is Kuala Lumpur the best place to see a Clouded Monitor?

Among the best

Of the 3 cities where we can rate Clouded Monitor sightings, Kuala Lumpur ranks 2nd at about 40%, level with the leaders once rounded. The best odds are in Singapore (Singapore, about 40%).

Where does the Clouded Monitor sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Clouded Monitor is recorded against all the reptiles logged in Kuala Lumpur (206 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

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