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When to go · Atenas

Atenas in September

Avoid month. Listed as a month to avoid: Apr–Oct (warmer, occasional afternoon rain).

Key facts

Verdict
Avoid
Temperature
27°C (81°F) / 18°C (64°F)
average high / low
Rain days
7
Crowds
Low
Costa Rica overall
Prices
Low
Costa Rica overall

Verdict

AvoidBest and avoid months for Atenas

Listed as a month to avoid: Apr–Oct (warmer, occasional afternoon rain).

Is another month better than September?

September is rated avoid. These months rate higher:

Weather in September

Long-term averages
  • AtenasHighs around 27 °C (81 °F), lows around 18 °C (64 °F), rain on about 7 days

Crowds and prices

Crowds · Costa Rica overall
Low
Prices · Costa Rica overall
Low

Costa Rica overall: Wettest on the Pacific; driest on the Caribbean — switch sides.

Compare two months

Weather, crowds and prices for any two months in Atenas, side by side.

  • Verdict

    Sep: Avoid

    Jan: Great (better)

  • Daytime high

    Sep: 27 °C (81 °F)

    Jan: 27 °C (81 °F)

  • Night low

    Sep: 18 °C (64 °F)

    Jan: 16 °C (61 °F)

  • Rain days

    Sep: 7

    Jan: 2 (better)

  • Crowds

    Sep: Low

    Jan: High

  • Prices

    Sep: Low

    Jan: High

  • Festivals listed

    Sep: 0

    Jan: 0

September: Listed as a month to avoid: Apr–Oct (warmer, occasional afternoon rain).

January: Inside Atenas's best window: Jan–Mar.

Atenas: figures are long-term averages from this guide, not a forecast.

What to pack

Nothing unusual for the weather this month.

Build the full packing list for your trip →

Across Costa Rica in September →