Jaco
Costa Rica
Long-term weather forecast
Long-term weather forecast
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May weather forecast and Climate
Jaco, Costa Rica

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  • The average high temperature in May: 31°C

Warmest months (with the highest average high temperature) are March and April (32°C).
Months with the lowest average high temperature are September, October, November and December (29°C).

  • The average low temperature in May: 24°C

Months with the highest average low temperature are March, April and May (24°C).
Coldest months (with the lowest average low temperature) are September, October, November and December (22°C).

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  • The average rainfall in May: 336mm

The wettest month (with the highest rainfall) is October (503mm).
The driest month (with the lowest rainfall) is January (0mm).

  • The average rainfall days in May: 17 days

Months with the highest number of rainy days are June, August and September (22 days).
Months with the lowest number of rainy days are February and March (7 days).

  • The average sea temperature in May: 29.3°C

The best month for swimming (with the highest average sea temperature) is March (29.4°C).
The coldest month (with the lowest average sea temperature) is November (27.8°C).

  • The average daylight in May: 13h

Months with the longest days are May, June and July (Average daylight: 13h).
Months with shortest days are January, February, March, April, August, September, October, November and December (Average daylight: 12h).

  • The average sunshine in May: 6h

Months with most sunshine are February, March and April (Average sunshine: 8h).
Months with least sunshine are September and October (Average sunshine: 5).

  • The average UV index in May: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).

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