Guanacaste, Costa Rica: What to pack, what to wear, and when to go [2022]

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Traveling to Guanacaste, Costa Rica? If you're planning to go to Guanacaste, below is some important information about when to go, what to wear, and what to pack.

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When to go to Guanacaste, Costa Rica

Based on the climate and weather in Guanacaste, the best time to go is December. See below for details.

Important esssentials for Guanacaste, Costa Rica

Here are some general tips on what to wear in Guanacaste, as well as several items to remember to pack when traveling there.

What to wear/what to pack for Guanacaste, Costa Rica by month

January

January in Guanacaste is scorchingly hot and very rainy. Temperatures average in the low 90s F (low 30s C) during the day. It rains about two thirds of the time.

What to wear/what to pack:

February

In February, Guanacaste is a scorcher and very rainy. Temperatures routinely are in the 90s F (mid 30s C) range.

At night, lows are in the low 60s F (low 20s C). This is also a rainy time for Guanacaste, with more than half of the days of the month having rain.

What to wear/what to pack:

March

March is blindingly hot and very rainy. Temperatures average in the 90s F (mid 30s C) during the day. It rains most days.

What to wear/what to pack:

April

If you visit Guanacaste during April, you might see that it is sweltering and extremely rainy. Temperatures tend to hover around the high 90s F (mid 30s C) during the day, while at night they can dip into the low 70s F (low 20s C).

In terms of precipitation, you can expect it to rain most days.

What to wear/what to pack:

May

Traveling to Guanacaste in May, you will notice that it is sizzling and extremely rainy. Expect it to rain most days. Daytime temperatures are in the low 90s F (mid 30s C).

What to wear/what to pack:

June

June in Guanacaste is really hot and extremely rainy. Temperatures average in the low 80s F (low 30s C) during the day. It rains most days.

What to wear/what to pack:

July

If you vacation in Guanacaste during July, you will probably see that it is constantly hot and extremely rainy. Temperatures tend to hover around the low 80s F (low 30s C) during the day, while at night they can dip into the low 70s F (low 20s C).

In terms of precipitation, you can expect it to rain most days.

What to wear/what to pack:

August

If you go to Guanacaste in August, you will notice that it can be very hot and extremely rainy. Expect it to rain most days. Daytime temperatures are in the low 80s F (low 30s C).

What to wear/what to pack:

September

September for Guanacaste can be sweltering and very rainy. Temperatures average in the high 80s F (low 30s C) during the day. It rains most days.

What to wear/what to pack:

October

October in Guanacaste can be sweltering and very rainy. The rain can amount to several inches/centimeters. During this time, temperatures average in the high 80s F (low 30s C).

What to wear/what to pack:

November

November is consistently hot and very rainy. Temperatures average in the high 80s F (low 30s C) during the day. It rains most days.

What to wear/what to pack:

December

In December, Guanacaste is consistently hot and very rainy. Temperatures routinely are in the low 90s F (low 30s C) range.

At night, lows are in the low 60s F (low 20s C). This is also a rainy time for Guanacaste, with more than half of the days of the month having rain.

What to wear/what to pack:

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