One of the wettest months with frequent heavy rain and swollen rivers; some rural areas may be difficult to reach. Birding can be excellent but logistically more challenging. Plan more time for transfers and expect muddy trails.
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 Guyana in May.
Where to Go in Guyana in May
Coastal Lowlands
Georgetown, East Coast Demerara, New Amsterdam
May marks the onset of the primary wet season for the coast, with more frequent heavy showers and an uptick in coastal flooding on low roads and market areas. The wind shifts to a stronger easterly flow and the Atlantic can throw choppy seas that occasionally disrupt small-boat schedules to nearby islands. Photographers will find dramatic skies and rinsed-clean air, but travelers should expect disruptions to day trips and carry waterproof gear and backup transport plans.
Lower Essequibo & Interior Lowlands
Bartica, Vreed-en-Hoop, Essequibo River islands
May brings higher river levels and more frequent downpours; floating debris and stronger currents make some smaller landing spots unreliable. This is a dramatic month for seeing the rivers swell, and waterfalls on tributaries begin to pulse with renewed flow - great for photography but potentially limiting for riverbank hikes. Expect more delays on inter-regional boat services; allow extra travel time and consider internal flights where possible.
Central Rainforest & Protected Reserves
Iwokrama, Kaieteur region approaches, protected forests
May kicks off the main wet season in earnest across the central rainforest - heavy, sustained downpours occur more often, and many smaller rivers rise noticeably. Access to remote camps is harder: some trails and airstrips close temporarily and charter flights can be canceled. Expect luxuriant forest growth, booming insect life, and powerful waterfalls, but be prepared for mud, cancellations, and a quieter tourist scene.
Rupununi Savannah
Lethem, Annai, South Rupununi
May herald the full onset of the dry season in the Rupununi: shallow lagoons shrink, rivers fall, and the landscape turns golden - perfect for wildlife viewing where animals congregate at permanent water sources. Road access is much improved, making it the popular time for 4x4 safaris and for attending local events; the sun is strong, so early-morning and late-afternoon game drives work best. Bring sun protection, binoculars, and a sense of timing for the cooler dawns and hot afternoons.
Pakaraima Mountains & Kaieteur Plateau
Kaieteur Falls, Mount Roraima approaches, western highlands
May marks the beginning of the main wet season across much of the highlands; clouds, heavy rain and mist often shroud peaks and visibility can be poor for aerial sightseeing. The advantage is truly swollen falls and the rivers below the escarpments running high; however, many remote trails are slippery and some camps close for safety reasons. If you value solitude and dramatic waterfalls, come prepared for wet conditions and potentially cancelled flights.
Events & Festivals in May
There are no major festivals or events in Guyana during May to be aware of.
Planning a trip to Guyana?
See how May compares with the rest of the year, then read the full guide.