Nafplio (Peloponnese) weather in August

August in Nafplio: sweltering, dry — fine if you can take 35°C afternoons.

Updated September 2026 · climate normals from ERA5 reanalysis

Nafplio🇬🇷 Greece · Greece & Cyprus · City76
  1. 72Jan
  2. 77Feb
  3. 85Mar
  4. 94Apr
  5. 92May
  6. 80Jun
  7. 69Jul
  8. 76Aug
  9. 83Sep
  10. 93Oct
  11. 84Nov
  12. 74Dec

#9 of 12 months in Nafplio · #799 of 1413 destinations to visit in August · comfort 76/100 (tier B)

Days
34°C
Nights
24°C
Wet days
2
Sun
12.5 h
Humidity
49%
Daylight
14 h
Nafplio, Greece
Photo: Enrique · Pexels

Traveller notes on Nafplio in August

Other months in Nafplio

Forum posters describe early November in Nafplio as still warm enough for some visitors to swim from the town beach, with daytime temperatures typically in the high teens to low 20sC on dry, clear days, though evenings cool quickly once the sun sets early. Posters are direct that rain remains a real possibility roughly a third of the time during a November stay, even as T-shirt weather stays entirely plausible on a good day. Posters note conditions vary meaningfully across the Peloponnese, generally colder and wetter further from the coast than a seaside town like Nafplio. Posters confirm hotels, restaurants and attractions all stay open in November, with archaeological sites specifically recommended this time of year thanks to thinner crowds. Posters generally rate November as mild, variable but genuinely pleasant for a Nafplio visit, real rain risk balanced against real chances of warm, sunny days.
Tripadvisor community · November · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe early May as somewhat unpredictable - warm by day (low-to-mid 20sC) but cooler come evening, with a real chance of a cloudy or rainy day mixed into an otherwise good stretch. Mid-May is generally rated the sweeter spot: good, settled weather without summer's more intense heat, ideal for sightseeing around Nafplio's old town and nearby archaeological sites. Sea swimming is possible but the water itself is still notably cool this early in the season, cooler than a July or August visit would offer. Posters note Nafplio stays lively year-round thanks to its sizeable resident population and steady weekend visitor traffic from other parts of Greece, so it never feels like an empty off-season town even in spring.
Tripadvisor community · May · 1 month ago · Read more on Tripadvisor ↗

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Nafplio climate normals — August

Daytime high34°C / 93°F🔥 sweltering
Nighttime low24°C / 74°F
Feels like (high)35°C / 95°F
Sea temperature28°C / 83°F♨️ bath-warm
Rainfall14 mm / 0.6 in☀️ dry
Rainy days2 days
Humidity49%🍃 comfortable
Dew point16°C / 61°F
Sunshine12.5 h/day
Daylight13.6 h
Wind13 km/h / 8 mph
Air quality (US AQI)52🙂 moderate

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

Crowds in Nafplio 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.

Peak crowdsAthenian weekends, Summer holidays in Greece, school holidays in 7 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Nafplio'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 weatherNafplio's best weather comes in April, May and October — separate windows, not one continuous season.

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Best weatherFair weatherToughest weather

What's on in Nafplio in August

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

  • Season

    Athenian weekends

    1 Mar – 15 NovDay-tripper crushCrowded

    Two hours from Athens on the new road, which makes this the capital's weekend town: Saturday nights in the old quarter are booked and Sunday lunch queues. Midweek it is a different, slower place.

  • Season

    Sea warm enough

    15 Jun – 15 Oct · usually

    The town beach at Arvanitia is a slab of rock rather than sand; the swimming is at Karathona round the headland or at Tolo. The Argolic Gulf is sheltered and calm most days.

  • Hazard

    Midsummer heat on Palamidi

    1 Jul – 25 AugExtreme heat

    The staircase up to the Palamidi fortress is close to a thousand steps with no shade on it, and the site shuts in the early afternoon in summer. Go at opening or take the road up. Source ↗

What's on around the world in August →

Nearby, and something's on

Within 300 km of Nafplio — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Nafplio?

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Nafplio in August — FAQ

Is August a good time to visit Nafplio?
August in Nafplio: sweltering, dry — fine if you can take 35°C afternoons. It ranks #9 of 12 months for Nafplio on SeasonMap's comfort score (76/100).
What is the weather like in Nafplio in August?
In August, Nafplio averages a daily high of 34°C and a low of 23.6°C, with about 14.4 mm of rain over roughly 2.4 rainy days.
What is the air quality in Nafplio in August?
Nafplio has a mean US Air Quality Index of about 52 in August.

Within 300 km: Athens' Athens Epidaurus Festival on 1 Jun – 29 Aug, and Zakynthos' Loggerhead nesting in Laganas Bay on 1 May – 31 Oct.