Temperatures in January
It's hot in January in Guanacaste with an average temperature of 33°C. Temperatures this month range from a low of 33°C to a high of 36°C. At night, you can expect temperatures between 21°C and 23°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Guanacaste in January. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of January
The month of January starts in Guanacaste with hot temperatures, averaging around 34°C during the day and nights close to 23°C. You won’t see any precipitation in the first days of the month, it’s all sunny skies. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-January
By mid-January, the average daytime temperature drops to around 33°C, with nights close to 22°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
End of January
By the end of January, the average daytime temperature in Guanacaste will be around 34°C, with nights close to 22°C. No precipitation expected, with plenty of sunshine on the horizon. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Precipitation in January
In January, there is an average of 10 mm of precipitation, spread over 1 day. The wind speed is around 5 Bft, mostly coming from the East.
The average chance of precipitation is only 2% in January.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for Guanacaste. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Guanacaste in January |
UK | ||
|---|---|---|---|
 Average Temperature |
33°C | 8°C | |
 High Temp |
36°C | 9°C | |
| Low Temp |
33°C | 6°C | |
 Total Precipitation |
10 mm | 58 mm | |
| Rainy Days |
1 day | 9 days | |
December
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is January a good time to visit Guanacaste?
January is a fantastic month to be in Guanacaste for sunny weather. You’ll get high temperatures and little chance of rain this month.
Temperature records for Guanacaste in January
With 58°C, Guanacaste hit the highest temperature in the last 10 years in January 2018. The lowest daytime temperature in this month was 29°C in 2018. The extreme night temperatures ranged from a low of 16°C to a high of 27°C.
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Daily Temperature in January in Guanacaste
This chart shows the average daily temperatures, both day and night, for each day in January in Guanacaste, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in Guanacaste
The chart below shows the average daily precipitation in January for Guanacaste, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect about 1 day of rain in Guanacaste.
Daily UV Index in January in Guanacaste
This chart shows the average daily UV index in January 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.
Temperature in January in Guanacaste Over the Years
This chart shows the average temperature in January in Guanacaste, measured in degrees Celsius, over the past years.
Total Precipitation in January in Guanacaste Over the Years
This chart shows the average precipitation in January in Guanacaste, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in January for Guanacaste
Click on a specific day in January for detailed info on the typical weather on that day in Guanacaste. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Guanacaste
Have you been to Guanacaste in January?
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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.
Or check out the climate of Guanacaste for all months at once
