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Weather in Guanacaste for January 2026

Your guide to Guanacaste weather in January - trends and predictions

    Temperatures

  • In general, the average temperature in Guanacaste at the beginning of January is 29.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 31.6 °C by the end of January.

    • Rain 🌧️

  • Guanacaste experiences moderate rainfall in January, with an average of 6 rainy days and a total precipitation of 16.5 mm.

Average dry days
25
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/22°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Guanacaste Weather January

Move between months or click on a day
December
February
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Moderate or heavy rain shower
30°
2
Patchy rain possible
30°
3
Heavy rain at times
28°
4
Patchy rain possible
29°
5
Moderate rain at times
30°
6
Moderate rain at times
30°
7
Cloudy
31°
8
Patchy rain possible
29°
9
Overcast
28°
10
Patchy rain possible
30°
11
Sunny
31°
12
Sunny
32°
13
Sunny
31°
14
Moderate rain at times
30°
15
Sunny
31°
16
Patchy rain possible
30°
17
Patchy rain possible
29°
18
Cloudy
30°
19
Patchy rain possible
32°
20
Moderate rain at times
30°
21
Cloudy
31°
22
Moderate rain at times
30°
23
Overcast
30°
24
Moderate rain at times
31°
25
Patchy rain possible
30°
26
Overcast
31°
27
Overcast
32°
28
Overcast
32°
29
Partly cloudy
32°
30
Partly cloudy
32°
31
Partly cloudy
32°

Temperatures trend during January in Guanacaste

See the weather trend as well as the moving average line

January weather in Guanacaste day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
1 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /22° 4.9 mm 7
2 Jan. Patchy rain possible
Patchy rain possible
 30° /22° 0.7 mm 7
3 Jan. Heavy rain at times
Heavy rain at times
 28° /22° 1.7 mm 6
4 Jan. Patchy rain possible
Patchy rain possible
 29° /21° 0.4 mm 6
5 Jan. Moderate rain at times
Moderate rain at times
 30° /21° 0.9 mm 7
6 Jan. Moderate rain at times
Moderate rain at times
 30° /22° 1.7 mm 7
7 Jan. Cloudy
Cloudy
 31° /22° 0 mm 7
8 Jan. Patchy rain possible
Patchy rain possible
 29° /23° 0.1 mm 6
9 Jan. Overcast
Overcast
 28° /22° 0 mm 6
10 Jan. Patchy rain possible
Patchy rain possible
 30° /21° 0.4 mm 7
11 Jan. Sunny
Sunny
 31° /21° 0 mm 8
12 Jan. Sunny
Sunny
 32° /21° 0 mm 8
13 Jan. Sunny
Sunny
 31° /21° 0 mm 8
14 Jan. Moderate rain at times
Moderate rain at times
 30° /21° 1.1 mm 7
15 Jan. Sunny
Sunny
 31° /22° 0 mm 8
16 Jan. Patchy rain possible
Patchy rain possible
 30° /21° 0.1 mm 7
17 Jan. Patchy rain possible
Patchy rain possible
 29° /21° 0.5 mm 6
18 Jan. Cloudy
Cloudy
 30° /21° 0 mm 7
19 Jan. Patchy rain possible
Patchy rain possible
 32° /21° 0.2 mm 7
20 Jan. Moderate rain at times
Moderate rain at times
 30° /21° 1 mm 7
21 Jan. Cloudy
Cloudy
 31° /21° 0 mm 7
22 Jan. Moderate rain at times
Moderate rain at times
 30° /22° 1.4 mm 7
23 Jan. Overcast
Overcast
 30° /22° 0 mm 7
24 Jan. Moderate rain at times
Moderate rain at times
 31° /22° 0.8 mm 7
25 Jan. Patchy rain possible
Patchy rain possible
 30° /24° 0.6 mm 7
26 Jan. Overcast
Overcast
 31° /23° 0 mm 7
27 Jan. Overcast
Overcast
 32° /22° 0 mm 7
28 Jan. Overcast
Overcast
 32° /21° 0 mm 7
29 Jan. Partly cloudy
Partly cloudy
 32° /22° 0 mm 8
30 Jan. Partly cloudy
Partly cloudy
 32° /23° 0 mm 8
31 Jan. Partly cloudy
Partly cloudy
 32° /22° 0 mm 8
Next
Important Notice
Our weather forecast for Guanacaste in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Guanacaste forecast closer to your planned date for the most up-to-date weather information.
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Guanacaste in January - FAQ

What are the expected maximum and minimum temperatures in Guanacaste during January?
During January, expect a variety of temperatures with highs around 30° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Guanacaste during January?
Expect minimal rainfall in Guanacaste during January, with a total of 16.5 mm over approximately 6 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Guanacaste during January?
The average wind speed in Guanacaste during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

January rainfall patterns in Guanacaste

Explore the daily rainfall trends and prepare for Guanacastes January weather 💧

UV exposure in Guanacaste during January

Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️

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Get accurate weather forecasts for Guanacaste, located at latitude 10.767 and longitude -85.647. Stay updated with localized weather information tailored for Guanacaste.

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