Guanacaste Province (Liberia)
September
Weather in Guanacaste Province for September 2027
Your guide to Guanacaste Province weather in September - trends and predictions
In general, the average temperature in Guanacaste Province at the beginning of September is 30.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.1 °C by the end of September.
Guanacaste Province experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 389.9 mm.
Is September a good time to visit Guanacaste Province? check out the best time to travel to Guanacaste Province page.
Temperatures
Rain 🌧️
More
3
Dry days
27
Rainy days
0
Snow days
30°/23°
Temperatures
12 km/h
Avg max wind
82 %
Avg humidity
Guanacaste Province Weather September
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What’s the Weather Like in Guanacaste Province This September?
Discover the average temperatures and weather trends across Guanacaste Province’s cities this September.
Temperatures trend during September in Guanacaste Province
See the weather trend as well as the moving average line
September weather in Guanacaste Province day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy light rain with thunder | 31° /23° | 8 mm | 6 | |
| 2 Sept. |  Moderate rain | 31° /23° | 17.8 mm | 6 | |
| 3 Sept. |  Moderate or heavy rain shower | 31° /23° | 8.8 mm | 6 | |
| 4 Sept. |  Light rain | 31° /23° | 9.3 mm | 7 | |
| 5 Sept. | Moderate rain | 31° /23° | 10.4 mm | 5 | |
| 6 Sept. | Moderate rain | 30° /23° | 16.7 mm | 6 | |
| 7 Sept. |  Torrential rain shower | 30° /23° | 31 mm | 6 | |
| 8 Sept. | Moderate or heavy rain shower | 30° /23° | 8.5 mm | 7 | |
| 9 Sept. | Torrential rain shower | 31° /23° | 12.7 mm | 8 | |
| 10 Sept. | Moderate or heavy rain shower | 31° /23° | 6.1 mm | 6 | |
| 11 Sept. | Moderate rain | 31° /23° | 11.1 mm | 6 | |
| 12 Sept. | Moderate or heavy rain shower | 31° /23° | 7.6 mm | 7 | |
| 13 Sept. | Moderate rain | 31° /23° | 18.3 mm | 6 | |
| 14 Sept. | Moderate or heavy rain shower | 31° /23° | 6.6 mm | 6 | |
| 15 Sept. | Light rain | 30° /23° | 7.8 mm | 6 | |
| 16 Sept. | Light rain | 31° /23° | 4.6 mm | 7 | |
| 17 Sept. | Moderate rain | 31° /23° | 12.4 mm | 7 | |
| 18 Sept. | Moderate rain | 31° /23° | 11.5 mm | 5 | |
| 19 Sept. | Moderate rain | 30° /23° | 18.2 mm | 5 | |
| 20 Sept. | Moderate rain | 29° /23° | 13.7 mm | 5 | |
| 21 Sept. | Moderate rain | 28° /22° | 20.8 mm | 5 | |
| 22 Sept. | Moderate rain | 29° /23° | 12.9 mm | 6 | |
| 23 Sept. | Moderate rain | 30° /22° | 11.1 mm | 6 | |
| 24 Sept. | Light rain | 30° /23° | 8.8 mm | 6 | |
| 25 Sept. | Heavy rain | 29° /23° | 28.7 mm | 5 | |
| 26 Sept. | Moderate rain | 29° /23° | 13.2 mm | 5 | |
| 27 Sept. | Moderate rain | 28° /22° | 16.5 mm | 5 | |
| 28 Sept. | Light rain | 29° /23° | 8.1 mm | 5 | |
| 29 Sept. | Moderate rain | 29° /23° | 14 mm | 5 | |
| 30 Sept. | Moderate rain | 30° /23° | 14.8 mm | 6 | |
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Important Notice
Our weather forecast for Guanacaste Province in September 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 Province forecast closer to your planned date for the most up-to-date weather information.
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Guanacaste Province in September - FAQ
What are the expected maximum and minimum temperatures in Guanacaste Province during September?
During September, expect a variety of temperatures with highs around 30° and lows near 23°, suitable for diverse activities and preferences.
How much rainfall should be expected in Guanacaste Province during September?
Significant rainfall exceeding 389.9 mm is expected in Guanacaste Province during September, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Guanacaste Province during September?
The average wind speed in Guanacaste Province during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Guanacaste Province
Explore the daily rainfall trends and prepare for Guanacaste Provinces September weather 💧
Typically, Guanacaste Province has 27 rainy days in September with a total of 389.9 mm of rainfall.
UV exposure in Guanacaste Province during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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