Manado weather in August

August in Manado: sweltering, soaked, with clean air — a gamble, with 20 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Manado🇮🇩 Indonesia · Malaysia, Singapore & Sumatra · City58
  1. 51Jan
  2. 58Feb
  3. 53Mar
  4. 52Apr
  5. 48May
  6. 49Jun
  7. 51Jul
  8. 58Aug
  9. 55Sep
  10. 53Oct
  11. 52Nov
  12. 52Dec

#2 of 12 months in Manado · #1116 of 1413 destinations to visit in August · comfort 58/100 (tier D)

Days
34°C
Nights
23°C
Wet days
20
Sun
10.3 h
Humidity
85%
Daylight
12 h
Manado, Indonesia
Photo: Ronny Buol · Pexels

Traveller notes on Manado in August

Forum posters describe August as nominally the middle of the dry season, but at least one visitor reported near-daily afternoon rain for almost two weeks despite that - a reminder that the 'dry' label doesn't guarantee dry days here. High wind and rough seas can also cancel dive boats on a given day. One geographic tip that comes up often: staying out on the islands (Bunaken, Siladen, Gangga) rather than the Manado mainland tends to mean less rain exposure. Regardless of the weather, posters are clear diving itself isn't much affected since you're wet either way, and Bunaken National Marine Park remains the headline draw for both diving and snorkeling day trips.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Other months in Manado

Manado's own forum makes the case that February's rainy-season label is a bit misleading in practice: multi-week stretches without significant rain aren't unusual, and when it does fall it's typically overnight (clearing by morning) or a brief early-afternoon shower rather than an all-day soak. The muggy humidity is the more constant feature. Divers heading out to Bunaken should note the real weather risk isn't rain but wind - a few posters mentioned choppy seas grounding dive boats on windier days, more than any rain shower would.
SulawesiDiveTraveler · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Manado's card on the map.

Manado climate normals — August

Daytime high34°C / 93°F🔥 sweltering
Nighttime low23°C / 73°F
Feels like (high)40°C / 104°F
Sea temperature30°C / 86°F♨️ bath-warm
Rainfall213 mm / 8.4 in⛈ soaked
Rainy days20 days
Humidity85%💦 very humid
Dew point23°C / 73°F
Sunshine10.3 h/day
Daylight12.2 h
Wind9 km/h / 6 mph
Air quality (US AQI)33🍃 good

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

Crowds in Manado 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.

BusyTomohon flower festival, school holidays in 4 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Manado'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).

Fair weatherManado's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in Manado in August

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

  • Hazard

    Lokon and Soputan alerts

    1 Jan – 31 DecVolcanic activityClosures

    Two of Indonesia's busier volcanoes sit within an hour of the city and the agency raises their status several times a decade, closing the Tomohon crater walks and occasionally dusting the airport. Source ↗

  • Season

    Calmest months for Bunaken

    1 May – 30 Sep · usuallyDive season

    The drier stretch either side of midyear is when the crossing out to Bunaken is flattest and the wall dives are at their clearest. Boats go year-round; these are the weeks they go easily.

  • Festival

    Tomohon flower festival

    5–14 Aug · usuallyMajor festivalCrowded

    Floats packed with chrysanthemums are pulled the length of Tomohon in the hills above the city, in the first half of August. It is a day trip up and a slow drive back down. Source ↗

What's on around the world in August →

Where is Manado?

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Manado in August — FAQ

Is August a good time to visit Manado?
August in Manado: sweltering, soaked, with clean air — a gamble, with 20 rainy days. It ranks #2 of 12 months for Manado on SeasonMap's comfort score (58/100).
What is the weather like in Manado in August?
In August, Manado averages a daily high of 33.9°C and a low of 22.8°C, with about 213.1 mm of rain over roughly 19.5 rainy days.
What is the air quality in Manado in August?
Manado has a mean US Air Quality Index of about 33 in August.