January - Peak Season
Warm and mostly dry. Mount Meru and Kilimanjaro are clearly visible from the Momella Lakes. Wildlife activity is strong across all zones. Walking conditions are comfortable.
- Colobus monkeys highly active in montane forest after breeding season peaks in late December.
- Buffalo herds concentrated on Ngurdoto Crater floor as water sources stabilise.
- African fish eagles perching prominently over Momella Lakes with clear visibility.
Tip: January suits a Meru climb. Clearer skies, drier trails, fewer people than the July/August peak.
- Temperature
- 23°C
- Rainfall
- 50mm
- Crowd Level
- Low
- Wildlife Viewing
- 85%
- Photography
- 80%
- Road Access
- 90%
- Value for Money
- 60%
February - Peak Season
Similar to January, and the driest month of the year. Flamingo numbers often increase. Photography conditions are strong: high-altitude light, no haze.
- Greater and lesser flamingo populations peak on Momella Lakes, creating pink shorelines.
- Malachite kingfishers and pied kingfishers hunting on glassy lake surfaces in morning light.
- Giraffe herds visible against Meru backdrop with minimal haze for photography.
Tip: If you're arriving for Kilimanjaro, spend a day here first. The altitude at the lakes (1,500m) provides gentle acclimatisation, and a forest walk loosens travel-stiffness.
- Temperature
- 24°C
- Rainfall
- 40mm
- Crowd Level
- Low
- Wildlife Viewing
- 90%
- Photography
- 85%
- Road Access
- 85%
- Value for Money
- 55%
March - Rainy Season
Long rains begin. Afternoon thunderstorms are common but rarely run all day. The forest thickens and waterfalls on Meru's slopes run full.
- Hartlaub's turaco and bar-tailed trogon calls intensify in lush montane forest with new growth.
- Tululusia Waterfall flows powerfully, attracting waterbuck and bushbuck to forest edges.
- Vervet and blue monkey troops more vocal and visible during breeding activity period.
Tip: Walking safaris work in March. The forest canopy provides cover. Bring a waterproof layer. The green landscape is worth it.
- Temperature
- 23°C
- Rainfall
- 110mm
- Crowd Level
- Low
- Wildlife Viewing
- 60%
- Photography
- 55%
- Road Access
- 50%
- Value for Money
- 85%
April - Rainy Season
The wettest month. Meru trails become slippery. Game drives are possible but challenging. Accommodation discounts are steep.
- Crowned eagle calling and displaying in dense montane canopy during breeding season.
- Breeding birds including sunbirds and weavers in full song with insects abundant for chick-rearing.
- Cloud cover limits visibility, but forest canopy shelters colobus monkeys from heavy downpours.
Tip: Avoid Arusha NP in April unless you're based in the city and want a quick morning drive. The upper Meru slopes take heavy rain.
- Temperature
- 21°C
- Rainfall
- 150mm
- Crowd Level
- Low
- Wildlife Viewing
- 50%
- Photography
- 45%
- Road Access
- 40%
- Value for Money
- 90%
May - Rainy Season
Rains ease. The park turns intensely green. Waterfalls run full. Streams flow. Birdsong fills the forest. A beautiful transitional month.
- Great cormorant colonies gathering on Momella Lakes as fish populations peak from rains.
- Young colobus monkeys moving independently through canopy after spring breeding.
- Forest flush attracts Silvery-cheeked hornbills to fruiting fig trees and flowering plants.
Tip: Late May is underrated. Rains are fading, crowds haven't returned, and the park is at its greenest.
- Temperature
- 20°C
- Rainfall
- 90mm
- Crowd Level
- Low
- Wildlife Viewing
- 55%
- Photography
- 50%
- Road Access
- 45%
- Value for Money
- 90%
June - Shoulder Season
Dry season opens. Mornings are crisp and cool. Views of both Meru and Kilimanjaro are clear. Wildlife becomes easier to spot as vegetation thins. Meru climbing season begins.
- Bushbuck and waterbuck increasingly visible as grass burns down, forcing them into open areas.
- Forest birds including Narina trogons more easily spotted as canopy lightens with dry transition.
- Buffalo herds shifting movement patterns as dry season water sources solidify.
Tip: June through October is climbing season. The three-to-four-day ascent is serious mountain work. Summit views of Kilimanjaro at dawn make every step worthwhile.
- Temperature
- 19°C
- Rainfall
- 20mm
- Crowd Level
- Med
- Wildlife Viewing
- 75%
- Photography
- 75%
- Road Access
- 80%
- Value for Money
- 70%
July - Peak Season
Peak dry season. The park is at its most accessible. Canoe safaris on the Momella Lakes are excellent: calm water, clear skies, flamingos present.
- Flamingos abundant on Momella Lakes during stable dry season with calm canoe-safari conditions.
- African fish eagles and pied kingfishers hunting in crystal-clear water at eye level from canoe.
- Giraffe herds spanning grasslands with unobstructed views of Meru and Kilimanjaro peaks.
Tip: A canoe safari followed by a forest walk makes a perfect day. Active, varied, entirely different from a vehicle-based game drive.
- Temperature
- 18°C
- Rainfall
- 10mm
- Crowd Level
- Medium
- Wildlife Viewing
- 95%
- Photography
- 90%
- Road Access
- 95%
- Value for Money
- 45%
August - Peak Season
Dry conditions hold. Meru climbers benefit from stable weather. The Momella Lakes are photogenic. Different mineral compositions create distinct colours across the seven lakes.
- Mineral chemistry attracts specific flamingo and wading bird species to individual Momella Lakes.
- Waterbuck visible along lake edges as breeding season builds toward September peak activity.
- Colobus monkeys and vervet troops at maximum visibility in thin dry-season forest canopy.
Tip: Photographers should know each Momella Lake has a different hue. Blue, green, turquoise. The variations come from different algal and mineral concentrations. Bring a polarising filter.
- Temperature
- 19°C
- Rainfall
- 10mm
- Crowd Level
- High
- Wildlife Viewing
- 95%
- Photography
- 90%
- Road Access
- 95%
- Value for Money
- 40%
September - Peak Season
Temperatures rise slightly. Conditions remain dry and clear. All activities work well. The park sees fewer visitors than the bigger-name parks on the circuit.
- Waterbuck males in peak territorial and rutting behaviour near Momella Lakes water sources.
- Mount Meru summit views most reliable for birdwatchers seeking high-altitude endemics and raptors.
- Dry season concentrates wildlife around remaining water, increasing encounter frequency on drives.
Tip: September is the last strong climbing month before short rains arrive. Summit views are most reliable in September and October.
- Temperature
- 21°C
- Rainfall
- 15mm
- Crowd Level
- High
- Wildlife Viewing
- 90%
- Photography
- 90%
- Road Access
- 95%
- Value for Money
- 45%
October - Peak Season
Short rains approach. Scattered afternoon showers begin. The park remains productive. Flamingo numbers sometimes increase as lake chemistry shifts.
- Early rains trigger insect hatches, bringing migratory warblers and rollers through forest canopy.
- Flamingo populations surge on Momella Lakes as alkalinity chemistry shifts with rainfall onset.
- Buffalo and giraffe herds still concentrated around water sources before rains disperse them.
Tip: October is a solid shoulder-season choice: largely dry, with lower rates and minimal crowds.
- Temperature
- 23°C
- Rainfall
- 30mm
- Crowd Level
- Low
- Wildlife Viewing
- 80%
- Photography
- 80%
- Road Access
- 85%
- Value for Money
- 55%
November - Shoulder Season
Short rains arrive. Migratory birds flood in. Birdwatching improves noticeably. The forest is green and alive. Mount Meru clouds over more frequently in the afternoons.
- European bee-eaters, rollers, and warblers arriving in breeding plumage from Mediterranean and Asia.
- Resident birds including sunbirds and weavers at peak breeding activity and vibrant coloration.
- Forest explosion of insects supports juvenile bird fledging and predator activity intensifies.
Tip: For birders, November here is exceptional. Over 400 species, many in their finest plumage after migration.
- Temperature
- 22°C
- Rainfall
- 80mm
- Crowd Level
- Low
- Wildlife Viewing
- 70%
- Photography
- 65%
- Road Access
- 70%
- Value for Money
- 75%
December - Shoulder Season
Short rains ease. The park is green and pleasant. A good option for visitors arriving in Arusha before heading into the circuit.
- Colobus monkey breeding season peaks, with juveniles riding mothers' backs through forest canopy.
- Green landscape supports high browse, making giraffe and waterbuck increasingly visible on grasslands.
- Both resident and migratory birds present together at peak diversity and breeding activity levels.
Tip: December works as an arrival-day experience. Fly in, walk the park, settle into the rhythm before heading elsewhere the next morning.
- Temperature
- 23°C
- Rainfall
- 60mm
- Crowd Level
- Low
- Wildlife Viewing
- 75%
- Photography
- 70%
- Road Access
- 75%
- Value for Money
- 65%
When to Visit
Click on a month to explore weather, wildlife events, and what to expect
January
Peak SeasonWhat to Expect
Warm and mostly dry. Mount Meru and Kilimanjaro are clearly visible from the Momella Lakes. Wildlife activity is strong across all zones. Walking conditions are comfortable.
Wildlife Highlights
- Colobus monkeys highly active in montane forest after breeding season peaks in late December.
- Buffalo herds concentrated on Ngurdoto Crater floor as water sources stabilise.
- African fish eagles perching prominently over Momella Lakes with clear visibility.
Legend's Tip
January suits a Meru climb. Clearer skies, drier trails, fewer people than the July/August peak.