Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
220km²
Area
82km
Coastline
22m
Highest point
29°C
Warmest sea
April
When to go to Bonny Island
Best for the beach from December to January.
The sea is warmest in April (29 °C) and coolest in August (26 °C). You can swim comfortably all year (21 °C or more).
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
An LGA in Rivers State, Nigeria
Bonny Island is an island in Nigeria. It covers 220 km², with 82 km of coastline. Its highest point rises to 22 m.
Getting there
- Port Harcourt City Airport / Port Harcourt Air Force Base (PHG)nearest airport with scheduled flights · 50 km in a straight lineCar hire in Port HarcourtDiscover Cars · Affiliate link↗
- Ferries6 ferry terminals on the island
- From December to Januarybest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
On the island
What you find on Bonny Island.
- 2beaches
- 6ferry terminals
- 3hotels, guesthouses and apartments
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
The shape of the land.
On average the island stands 5 m above the sea. 100 % of it is below 200 m.
- 100 %0–50 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
20 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Towns on the island
- Bonny16,868 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 29 | 30 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 29 |
| Night low (°C) | 24 | 26 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 25 | 25 |
| Sea (°C) | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 27 | 27 | 28 | 28 |
| Rain (mm) | 29 | 59 | 128 | 164 | 207 | 326 | 349 | 358 | 373 | 233 | 136 | 30 |
| Wet days | 5 | 10 | 20 | 24 | 27 | 28 | 28 | 28 | 28 | 28 | 18 | 4 |
| Sun h/day | 6.0 | 5.1 | 4.2 | 4.6 | 4.3 | 2.6 | 1.9 | 2.1 | 2.5 | 3.5 | 4.6 | 6.0 |
| Wind (km/h) | 9 | 11 | 11 | 11 | 11 | 13 | 14 | 14 | 13 | 11 | 10 | 8 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +0.8 | +0.9 | +1.2 | +0.7 | +0.4 | +0.6 | +0.3 | +0.4 | −0.1 | −0.1 | +0.3 | +0.1 |
| 2021 | +0.2 | +0.6 | +0.2 | +0.3 | ±0.0 | +0.5 | +0.9 | +0.8 | +0.7 | +0.6 | +0.5 | +0.1 |
| 2022 | +0.1 | ±0.0 | +0.3 | ±0.0 | +0.1 | ±0.0 | +0.5 | +0.4 | +0.6 | +0.2 | ±0.0 | −0.2 |
| 2023 | +0.5 | +0.3 | +0.3 | +0.5 | +0.7 | +0.2 | +0.7 | +0.8 | +1.0 | +0.8 | +0.6 | +0.6 |
| 2024 | +1.2 | +0.7 | +0.9 | +1.2 | +0.8 | +0.5 | +1.4 | +0.4 | +0.4 | +0.4 | +0.2 | +0.4 |
| 2025 | +0.7 | +0.9 | +0.7 | +0.3 | ±0.0 | +0.5 | +0.4 | ±0.0 | −0.1 | −0.2 | −0.2 | +0.1 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.

About these numbers
| Names, area, population | Wikidata (Q640657) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.



