The weather in June in Guanacaste

It's hot in June in Guanacaste with an average temperature of 32°C. Temperatures this month range from a low of 32°C to a high of 33°C. At night, you can expect temperatures between 23°C and 24°C.

Looking for sun? June isn’t a good month to be in Guanacaste. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in June for Guanacaste, Costa Rica. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 36°C in 2015, Guanacaste reached the highest temperature in June over the past 10 years. The lowest daytime temperature in this month was 26°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 18°C to a highest value of 28°C.

Rainfall amount

In June, there is an average of 220 mm of precipitation, spread over 20 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Daily weather in June for Guanacaste

Click on any day in June to get detailed info about the usual weather on that day in Guanacaste. Check out the historical temperatures and precipitation over the past 10 years on this day.

1

32° / 23°

2

33° / 23°

3

32° / 23°

4

32° / 24°

5

32° / 24°

6

33° / 24°

7

32° / 24°

8

32° / 23°

9

32° / 23°

10

32° / 23°

11

32° / 24°

12

32° / 24°

13

32° / 23°

14

32° / 23°

15

32° / 23°

16

32° / 23°

17

32° / 24°

18

32° / 24°

19

32° / 24°

20

32° / 24°

21

33° / 24°

22

32° / 24°

23

32° / 24°

24

33° / 24°

25

33° / 23°

26

32° / 24°

27

32° / 23°

28

33° / 24°

29

33° / 24°

30

33° / 24°

Start of June

The month of June starts in Guanacaste with hot temps, averaging around 33°C during the day and nights around 24°C.

Mid June

By mid-June, daytime temps drop to around 32°C, with nights around 24°C. There’s a high chance of precipitation during this time.

End of June

By the end of June, the average daytime temperature in Guanacaste is around 33°C, while nighttime temps are about 24°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Find affordable vacations to Guanacaste

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

The hurricane season in Guanacaste runs from June to November.

Check out the climate of Guanacaste for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in June in Guanacaste, Costa Rica. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in June in Guanacaste

Temperature in June in Guanacaste over the years

Precipitation charts

These charts show the average amount of precipitation in June in Guanacaste, Costa Rica. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in June in Guanacaste

Total precipitation in June in Guanacaste over the years

Daily UV index in June in Guanacaste

This chart shows the average daily UV index in June in Guanacaste, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

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Average weather in Guanacaste by month

Click on a month below to see detailed weather info for Guanacaste. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.