Varanus nebulosus
Silhouette: Steven Traver · PhyloPic
In 3 days ~80% in a week >90%
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 →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 2 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 3 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 4 | Khao Sok National Park | 🇹🇭 Thailand | |
| 5 | Khao Yai National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore | |
| 2 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 3 | Johor Bahru | 🇲🇾 Malaysia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | National Zoo of Malaysia | 🇲🇾 Malaysia | |
| 2 | Zagreb Zoo | 🇭🇷 Croatia | |
| 3 | Key West Aquarium | 🇺🇸 United States |
Likely
About 40% of wildlife watchers report a Clouded Monitor sighting in Singapore on a given day, based on 2,540 verified sightings from GBIF citizen-science data. It is the 3rd most-seen of the 64 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.
June
In that month about 50% of wildlife watchers report a Clouded Monitor in Singapore on a given day, against about 40% in July to May, the lowest months.
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.
Yes
Of the 3 cities where we can rate Clouded Monitor sightings, Singapore has the highest daily chance: about 40%. Next come Kuala Lumpur (Malaysia, about 40%) and Johor Bahru (Malaysia, about 20%).
GBIF citizen-science records
It is estimated from how often the Clouded Monitor is recorded against all the reptiles logged in Singapore (2,540 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.
