Simien Mountains National Park weather in August

August in Simien Mountains National Park: nice, soaked, with clean air — fine if you can take 31 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Simien Mountains National Park🇪🇹 Ethiopia · Horn of Africa · National park65
  1. 95Jan
  2. 92Feb
  3. 89Mar
  4. 86Apr
  5. 82May
  6. 80Jun
  7. 69Jul
  8. 65Aug
  9. 67Sep
  10. 83Oct
  11. 91Nov
  12. 96Dec

#12 of 12 months in Simien Mountains National Park · #1017 of 1413 destinations to visit in August · comfort 65/100 (tier C)

Days
18°C
Nights
12°C
Wet days
31
Sun
8.7 h
Humidity
87%
Daylight
13 h
Simien Mountains National Park, Ethiopia
Photo: Hulivili · CC BY 2.0

Traveller notes on Simien Mountains National Park in August

Simien Mountains-forum threads on an August visit describe daily rain as genuinely standard, posters naming afternoon and evening showers as the typical pattern, often arriving after trekkers have already reached camp. Regulars call fog a real regular feature at altitude, several posters naming reduced visibility on some stretches as a tradeoff for the lush, green landscape this season brings. Posters call August genuinely low season here, several regulars naming far fewer tourists on the trails as a real upside for anyone willing to trek in the rain. Regulars call temperatures considerably cooler than other months, several threads naming a range through the high teens by day and chillier at altitude overnight. Posters recommend real proper rain gear regardless of how the morning looks, several regulars calling this standard given how reliably afternoon rain arrives. The record: 18.1C days, 12.1C nights, an extraordinarily high 434mm across 31 days and 87 percent humidity.
SimienMountainsAugustRegular · August · 4 days ago · Read more on Tripadvisor ↗

Other months in Simien Mountains National Park

Simien Mountains-forum threads on a March visit describe the landscape as genuinely parched by this point, posters naming five rainless months as the reason grasses have browned compared with the lush look later in the year. Regulars call the greenest stretch genuinely May through September, several posters naming peak lushness running September through January, well before a March visit. Posters call bushes and trees genuinely still green year-round despite browner grasses, several regulars naming this a real distinction worth knowing. Regulars call March still genuinely worthwhile regardless of the drier look, one trekker from a March visit calling the experience wonderful despite the parched terrain. Posters recommend real sun protection, several regulars calling this standard given how exposed and dry conditions get. The record: 25C days, 12.7C nights, effectively no measurable precipitation and 30 percent humidity.
SimienMountainsMarchRegular · March · 4 days ago · Read more on Tripadvisor ↗
Simien Mountains-forum threads on a January visit describe a classic four-day trek as the real standard itinerary, posters naming the Gondar to Bauit-Ras to Sankaber to Geech to Chenke route as how most independent trekkers structure the trip. Regulars call January genuinely within the recommended window, several posters naming mid-September through January as when landscapes look best after the wetter months clear. Posters call this stretch real high season, several regulars warning trails and campsites can feel busier than shoulder months. Regulars call daytime conditions genuinely comfortable for hiking, several threads naming clear skies and minimal rainfall as reasons January works well for multi-day treks. Posters recommend booking a guide and mules through Gondar, several regulars calling this standard given park requirements for independent trekkers. The record: 21.8C days, 9.9C nights, effectively no measurable precipitation and 47 percent humidity.
SimienMountainsJanuaryRegular · January · 4 days ago · Read more on Tripadvisor ↗
Simien Mountains-forum trip reports on a September trek describe this as genuinely the tail end of the wetter months, one 2017 report camping four nights at Sankaber, Geech and Chenek and finding real fog and occasional showers but nothing that spoiled the trip. Regulars call the mountains genuinely at their most beautiful across September, October and November, several posters naming full-bloom grasses the real payoff. Posters call low season here a genuine tradeoff, several regulars describing far fewer tourists and pleasant temperatures between seven and seventeen degrees as compensation. Regulars call afternoon the real pattern for rain, several threads describing mornings as generally clear with showers arriving predictably later. Posters recommend real waterproof gear regardless of a clear start, several regulars calling this standard for a September trek. The record: 18.9C days, 11.6C nights, an extraordinarily high 406.9mm across nearly 29 days and 80 percent humidity.
SimienMountainsSeptemberRegular · September · 4 days ago · Read more on Tripadvisor ↗
Simien Mountains-forum threads on an October visit describe this as genuinely one of the strongest months here, posters calling the rains recently passed and the landscape verdant and colorful, October marking a real turning point. Regulars call the mountains at their most beautiful across September, October and November, several posters naming full-bloom grasses following the rains the real reason. Posters call December-February genuinely the peak travel season instead, several regulars naming October a real way to get similar scenery with fewer crowds. Regulars call altitude a genuine concern regardless of dates, several threads warning nights here turn considerably harsh and proper acclimatization matters as much as the month. Posters recommend real layers and a measured pace on the hikes, several regulars calling this standard advice for a Simien trek. The record: 19.7C days, 11.1C nights, an extraordinarily high 140.6mm across 17 days and 69 percent humidity.
SimienMountainsOctoberRegular · October · 4 days ago · Read more on Tripadvisor ↗

Add your own note from Simien Mountains National Park's card on the map.

Simien Mountains National Park climate normals — August

Daytime high18°C / 65°F😎 nice
Nighttime low12°C / 54°F
Rainfall434 mm / 17.1 in⛈ soaked
Rainy days31 days
Humidity87%💦 very humid
Dew point13°C / 55°F
Sunshine8.7 h/day
Daylight12.6 h
Wind9 km/h / 6 mph
Air quality (US AQI)43🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Simien Mountains National Park in August

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Quietschool holidays in 4 of the markets that fill it, one of its worst months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Simien Mountains National Park's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherSimien Mountains National Park's weather peaks December–February.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Simien Mountains National Park in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Wet season

    MonsoonRisk

    31 rainy days and about 434 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in August →

Where is Simien Mountains National Park?

Loading map…

Simien Mountains National Park in August — FAQ

Is August a good time to visit Simien Mountains National Park?
August in Simien Mountains National Park: nice, soaked, with clean air — fine if you can take 31 rainy days. It ranks #12 of 12 months for Simien Mountains National Park on SeasonMap's comfort score (65/100).
What is the weather like in Simien Mountains National Park in August?
In August, Simien Mountains National Park averages a daily high of 18.1°C and a low of 12.1°C, with about 434 mm of rain over roughly 31 rainy days.
What is the air quality in Simien Mountains National Park in August?
Simien Mountains National Park has a mean US Air Quality Index of about 43 in August.