The weather in April in Unión

It's hot in April in Unión with an average temperature of 31°C. Temperatures this month range from a low of 31°C to a high of 32°C. At night, you can expect temperatures between 21°C and 22°C.

April is a good month to be in Unión for sunny weather. You’ll have high temperatures and not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in April for Unión, 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 38°C in 2020, Unión reached the highest temperature in April over the past 10 years. The lowest daytime temperature in this month was 24°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 16°C to a highest value of 28°C.

Rainfall amount

In April, there is an average of 75 mm of precipitation, spread over 10 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Daily weather in April for Unión

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

1

31° / 21°

2

32° / 21°

3

32° / 21°

4

32° / 21°

5

31° / 21°

6

31° / 22°

7

31° / 22°

8

31° / 21°

9

31° / 22°

10

31° / 22°

11

31° / 22°

12

31° / 21°

13

31° / 21°

14

31° / 22°

15

31° / 21°

16

31° / 22°

17

31° / 21°

18

31° / 21°

19

31° / 21°

20

31° / 21°

21

31° / 21°

22

31° / 22°

23

31° / 22°

24

32° / 21°

25

31° / 21°

26

31° / 21°

27

31° / 21°

28

31° / 22°

29

31° / 22°

30

31° / 22°

Start of April

The month of April starts in Unión with hot temps, averaging around 32°C during the day and nights around 22°C.

Mid April

By mid-April, daytime temps drop to around 31°C, with nights around 22°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of April

By the end of April, the average daytime temperature in Unión is around 32°C, while nighttime temps are about 22°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

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

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

Temperature charts

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

Daily Temperature in April in Unión

Temperature in April in Unión over the years

Precipitation charts

These charts show the average amount of precipitation in April in Unión, 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 April in Unión

Total precipitation in April in Unión over the years

Daily UV index in April in Unión

This chart shows the average daily UV index in April in Unión, 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 Unión by month

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