May marks the onset of the wet season across much of South Sudan with increasing afternoon and evening storms. Rivers and unpaved roads begin to deteriorate and some lowland areas can start to flood. Travel becomes more challenging; expect fewer tourists and interruptions to schedules.
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Temperature map
-30°-20°-10°0°10°20°30°40°
Average temperature across South Sudan in May.
Where to Go in South Sudan in May
Juba & Central Equatoria
Juba, Nimule, Kajo-Keji
By May the wet season is properly established: daily heavy showers and warm humidity, especially in lowland Central Equatoria. The White Nile level rises and small tributary ferries start to run more reliably as river transport becomes easier than muddy roads. Trekking below the Imatong peaks is very green but muddy; many day‑stops in and around Juba will have standing water and more mosquitoes - strong repellents and long sleeves for evenings are a must.
Eastern Equatoria & Imatong Highlands
Torit, Nimule, Imatong Mountains, Kajo‑Keji
May washes the Imatong massif with regular showers and cool, mossy conditions on the higher ridges; small streams swell and lower‑lying paths can be waterlogged. For photographers and botanists the mountain flora is at its best, but expect difficult traction and closed or limited services at remote guesthouses. If you plan to climb, bring full waterproofs, gaiters and plan for slower progress - local guides know the safest routes in these saturated months.
Bahr el Ghazal & Western Plains
Wau, Rumbek, Raga, Tonj
May is firmly into the wet season across Bahr el Ghazal with regular downpours and rising local streams; Rumbek’s backroads become challenging, and travel to more remote camps requires local advice. The plains turn lush and birdlife increases, making this an interesting month for naturalists willing to handle mud. Bring durable waterproof boots, expect limited vehicle access in the wettest days, and check with operators about road conditions before long trips.
The Sudd & White Nile Floodplain
Jonglei, Bor, Pibor, Bentiu approaches
May sees strong inflows to the Sudd and rising water across seasonal channels, expanding the floodplain and submerging grass islands; villages that depend on foot crossings adapt by moving to higher ground. For river travelers this is prime water season: boat routes lengthen but become more complex and sometimes require skilled local pilots. Mosquitoes increase sharply and malaria risk is elevated; bring repellents and cover up at dusk.
Upper Nile & Northern Plains
Malakal, Melut, Bentiu approaches, Nasir area
May delivers a clear transition into the wet season with frequent heavy rainfall and rising river levels; in places around Malakal and Bentiu small tracks turn to mud. For oilfield and river operations travel remains possible but slower, and birdlife increases along the newly flooded margins. Prepare for insect increases and reduce overland ambitions to well‑maintained roads or river routes with experienced operators.
Events & Festivals in May
There are no major festivals or events in South Sudan during May to be aware of.
Planning a trip to South Sudan?
See how May compares with the rest of the year, then read the full guide.
