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)81°F (27°C) / 18°C (64°F)64°F (18°C)
- average high / low
- Rain days
- 7
- Crowds
- Low
- Costa Rica overall
- Prices
- Low
- Costa Rica overall
Verdict
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
- AtenasHighs around 27 °C (81 °F), lows around 18 °C (64 °F), rain on about 7 daysHighs around 81 °F (27 °C), lows around 64 °F (18 °C), 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)81 °F (27 °C)
Jan: 27 °C (81 °F)81 °F (27 °C)
Night low
Sep: 18 °C (64 °F)64 °F (18 °C)
Jan: 16 °C (61 °F)61 °F (16 °C)
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.