Aquarist Atlas
Collection point · Lake Malawi · Malawi

Jumbo Island

JOOM-boh EYE-land (approx.)

The atlas records 3 collection-point forms from Jumbo Island, across 3 genera.

13.9933°S 34.7567°E

Jumbo Island is an island off Lake Malawi's Malawian shore, under 1 km south-south-east of Mumbo Island.

Where it is

Jumbo Island is in open water about 6.2 mi off the western shore, in the southern third of Lake Malawi (313 mi south of the lake's northern tip).

Nearest collection points: Mumbo Island 0.2 mi north · Three Peaks Reef 2.7 mi north-east · Zimbawe Rock 3.6 mi north-east

Shore, third and distances are measured from the coordinates above against the lake’s mapped outline.

The water

Lake-wide measured chemistry of Lake Malawi — collection points share their lake's water; site-specific figures are shown only where the literature records them.

Temperature75.2–84.2 °F24–29 °C
pH8.2–8.6alkaline
Hardnessmoderately soft, alkaline, well-buffered79 ppm
Conductivity≈250–260 µS/cmmeasured range

Nearest measured station: Monkey Bay (south basin) (~18 km) — Visibility (Secchi) 12.5 m

Surface temperature here

Across Apr–Nov, monthly means run 75 °F to 82 °F — coolest in Jul. Measured by satellite 1995–2023: the daily median of clear readings within 10 km of the site (1447 clear days). The rainy-season months are usually too cloudy to measure and are left blank.

73°76°79°82°Jan: too few clear satellite days (1)–JFeb: too few clear satellite days (4)–FMar: too few clear satellite days (7)–MApr: 80 °F mean (78 °F–82 °F), 45 clear satellite daysAMay: 78 °F mean (77 °F–80 °F), 154 clear satellite daysMJun: 76 °F mean (75 °F–78 °F), 205 clear satellite daysJJul: 75 °F mean (74 °F–76 °F), 226 clear satellite daysJAug: 75 °F mean (74 °F–76 °F), 284 clear satellite daysASep: 76 °F mean (74 °F–78 °F), 294 clear satellite daysSOct: 79 °F mean (77 °F–82 °F), 154 clear satellite daysONov: 82 °F mean (79 °F–83 °F), 65 clear satellite daysNDec: too few clear satellite days (8)–D
Surface temperature by month near Jumbo Island — dot = mean, bar = typical range (10th–90th percentile), “–” = too cloudy to measure.

Temperature: ESA Climate Change Initiative, Lakes_cci v3.0 (Asfour et al. 2026; doi:10.5285/a56dba09df8a42ec9fba8b8c7a5e1f69). Chemistry on this page remains the lake's own.

Sources
  1. malawi.si — Lake Malawi interactive locations map: Jumbo Island

Each entry below is the population of that species recorded here — the form aquarists keep and breed as a distinct, provenance-labelled line. Crossing forms from different collection points is considered hybridisation in the hobby.

Copadichromis (1)

Labeotropheus (1)

Maylandia (1)

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