December
Weather in San Salvador for December 2025
Your guide to San Salvador weather in December - trends and predictions
Until now, December 2025 in San Salvador is slightly cooler than the historical average by -1.5 °C.
The forecast for the next days in San Salvador predicts temperatures to be around 29 °C, close to the historical average.
In general, the average temperature in San Salvador at the beginning of December is 27.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 28.9 °C by the end of December.
With an average of 5 rainy days, San Salvador experiences minimal rainfall in December.
Temperatures
Rain 🌧️
26
Dry days
5
Rainy days
0
Snow days
29°/17°
Temperatures
9 km/h
Avg max wind
74 %
Avg humidity
San Salvador Weather December
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Temperatures trend during December in San Salvador
See the weather trend as well as the moving average line
December weather in San Salvador day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy rain possible | 28° /18° | 0 mm | 6 | |
| 2 Dec. |  Partly cloudy | 27° /18° | 0.6 mm | 7 | |
| 3 Dec. | Patchy rain possible | 27° /19° | 0 mm | 7 | |
| 4 Dec. | Patchy rain possible | 28° /18° | 0.1 mm | 7 | |
| 5 Dec. | Patchy rain possible | 27° /18° | 1.7 mm | 6 | |
| 6 Dec. | Patchy rain possible | 28° /18° | 0.5 mm | 6 | |
| 7 Dec. |  Sunny | 27° /18° | 3 mm | 6 | |
| 8 Dec. |  Mist | 28° /18° | 4.2 mm | 6 | |
| 9 Dec. | Mist | 29° /18° | 2.8 mm | 7 | |
| 10 Dec. | Patchy rain possible | 30° /18° | 0.2 mm | 6 | |
| 11 Dec. | Partly cloudy | 30° /19° | 1.8 mm | 7 | |
| 12 Dec. | Partly cloudy | 29° /18° | 0 mm | 7 | |
| 13 Dec. | Sunny | 28° /18° | 0.2 mm | 7 | |
| 14 Dec. | Sunny | 29° /19° | 0 mm | 2 | |
| 15 Dec. | Sunny | 29° /19° | 0 mm | 2 | |
| 16 Dec. | Sunny | 28° /19° | 0 mm | 2 | |
| 17 Dec. | Patchy rain possible | 29° /18° | 0.4 mm | 2 | |
| 18 Dec. | Sunny | 29° /19° | 0 mm | 0 | |
| 19 Dec. | Patchy rain possible | 29° /19° | 0.9 mm | 5 | |
| 20 Dec. | Sunny | 29° /20° | 0 mm | 6 | |
| 21 Dec. | Sunny | 29° /20° | 0 mm | 6 | |
| 22 Dec. | Sunny | 29° /19° | 0 mm | 6 | |
| 23 Dec. | Sunny | 29° /18° | 0 mm | 6 | |
| 24 Dec. | Sunny | 30° /18° | 0 mm | 6 | |
| 25 Dec. | Sunny | 29° /18° | 0 mm | 6 | |
| 26 Dec. | Sunny | 28° /18° | 0 mm | 6 | |
| 27 Dec. | Partly cloudy | 29° /19° | 0 mm | 6 | |
| 28 Dec. | Sunny | 29° /19° | 1.2 mm | 7 | |
| 29 Dec. | Patchy rain possible | 30° /18° | 6.3 mm | 7 | |
| 30 Dec. | Patchy rain possible | 28° /18° | 4.3 mm | 7 | |
| 31 Dec. | Partly cloudy | 29° /17° | 2.5 mm | 7 | |
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Important Notice
Our weather forecast for San Salvador in December 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 San Salvador forecast closer to your planned date for the most up-to-date weather information.
Change Month
San Salvador in December - FAQ
What are the expected maximum and minimum temperatures in San Salvador during December?
During December, expect a variety of temperatures with highs around 29° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Salvador during December?
Expect minimal rainfall in San Salvador during December, with a total of 18.9 mm over approximately 5 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in San Salvador during December?
The average wind speed in San Salvador during December is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in San Salvador
Explore the daily rainfall trends and prepare for San Salvadors December weather 💧
Typically, San Salvador has 5 rainy days in December with a total of 18.9 mm of rainfall.
UV exposure in San Salvador during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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