Weather forecast for 10 days
San Marcos, Costa Rica

Weather forecast for the weekend

Saturday, 14. Jun

Thunderstorms
05:14

17:58
CST
Thunderstorms
21°C / 16°C
  • Wind: 15km/h SSW
  • Humidity: 83%
  • Precip. probability: 94%
  • Precipitation: 29mm
  • UV index: 6
Tomorrow, on Saturday, 14th of June, rolling thunder and rain showers are also in the outlook.
Increased precipitation is forecasted. A slight temperature fluctuation is predicted, ranging from a high of an agreeable 21°C to a low of a comfortable 16°C.
Sunrise will be at 05:14 and sunset at 17:58; tomorrow's daylight will last for 12h and 43min.

Sunday, 15. Jun

Thunderstorms
05:14

17:58
CST
Thunderstorms
21°C / 16°C
  • Wind: 14km/h SSW
  • Humidity: 82%
  • Precip. probability: 94%
  • Precipitation: 9mm
  • UV index: 6
On Sunday, in San Marcos, expect thunderstorm activity to continue.
The chance of precipitation is high. However, the rainfall will be light. A narrow temperature span is expected, from a high of an agreeable 21°C to a low of an enjoyable 16°C.
Sunrise will be at 05:14 and sunset at 17:58; the daylight will last for 12h and 43min.

Frequently asked questions

What is the weather forecast for San Marcos for tomorrow?
Tomorrow, storm systems may continue to produce thunderstorms.
Will it rain tomorrow?
Substantial precipitation of 29mm is anticipated with a high probability.
What will be the highest temperature in San Marcos tomorrow?
Tomorrow, the highest temperature will be 21°C, while the lowest temperature will be 16°C.
The maximum temperature will be in line with the average highest temperature of°C in. Tomorrow, the lowest temperature will be also in line with the average low temperature.
When is the sunrise / sunset tomorrow?
On Saturday, in San Marcos, sunrise will be at 05:14 and sunset at 17:58 (CST).
How many hours of daylight will San Marcos have tomorrow?
In San Marcos, the length of the day tomorrow will be 12h and 43min.
What is the weather forecast for San Marcos for Sunday?
On Sunday, in San Marcos, expect thunderstorm activity to continue.
Will it rain on Sunday?
With a probability of 94%, light precipitation of 9mm is forecasted on Sunday.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 21°C, while the lowest temperature will be 16°C.
What is the weather forecast for San Marcos for the next ten days?
In San Marcos, rainy weather and thunderstorms are anticipated daily for the next ten days.
Will it rain in the next ten days in San Marcos?
With daily precipitation varying from a minimum of 1mm to a maximum of 31mm, rainfall is expected every day in San Marcos. With heavy precipitation of 31mm, Tuesday will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will range between 20°C and 23°C, while the minimum temperature will be between 15°C and 17°C.
What will be the warmest and the coldest days?
With a maximum temperature of 23°C, Thursday and next Friday will be the warmest days. Today is the coldest day, with a maximum temperature of 20°C.

Long-term weather forecast

Fri13.Jun
  • 20°C
  • 16°C
Thunderstorms
Thunderstorms
  • Wind: 15km/h SSW
  • Humidity: 86%
  • UV index: 6
  • Precip. probability: 96%
  • Precipitation: 1mm
  • 05:14 17:57 CST
Sat14.Jun
  • 21°C
  • 16°C
Thunderstorms
Thunderstorms
  • Wind: 15km/h SSW
  • Humidity: 83%
  • UV index: 6
  • Precip. probability: 94%
  • Precipitation: 29mm
  • 05:14 17:58 CST
Sun15.Jun
  • 21°C
  • 16°C
Thunderstorms
Thunderstorms
  • Wind: 14km/h SSW
  • Humidity: 82%
  • UV index: 6
  • Precip. probability: 94%
  • Precipitation: 9mm
  • 05:14 17:58 CST
Mon16.Jun
  • 21°C
  • 16°C
Thunderstorms
Thunderstorms
  • Wind: 15km/h SSW
  • Humidity: 84%
  • UV index: 5
  • Precip. probability: 95%
  • Precipitation: 15mm
  • 05:15 17:58 CST
Tue17.Jun
  • 21°C
  • 16°C
Thunderstorms
Thunderstorms
  • Wind: 13km/h SSW
  • Humidity: 82%
  • UV index: 7
  • Precip. probability: 89%
  • Precipitation: 31mm
  • 05:15 17:58 CST
Wed18.Jun
  • 22°C
  • 16°C
Thunderstorms
Thunderstorms
  • Wind: 14km/h SSE
  • Humidity: 77%
  • UV index: 9
  • Precip. probability: 80%
  • Precipitation: 16mm
  • 05:15 17:59 CST
Thu19.Jun
  • 23°C
  • 17°C
Thunderstorms
Thunderstorms
  • Wind: 15km/h SE
  • Humidity: 76%
  • UV index: 8
  • Precip. probability: 70%
  • Precipitation: 12mm
  • 05:15 17:59 CST
Fri20.Jun
  • 23°C
  • 16°C
Thunderstorms
Thunderstorms
  • Wind: 15km/h SE
  • Humidity: 75%
  • UV index: 6
  • Precip. probability: 61%
  • Precipitation: 8mm
  • 05:16 17:59 CST
Sat21.Jun
  • 22°C
  • 16°C
Thunderstorms
Thunderstorms
  • Wind: 14km/h SSE
  • Humidity: 79%
  • UV index: 6
  • Precip. probability: 60%
  • Precipitation: 13mm
  • 05:16 17:59 CST
Sun22.Jun
  • 21°C
  • 15°C
Thunderstorms
Thunderstorms
  • Wind: 13km/h SSE
  • Humidity: 80%
  • UV index: 8
  • Precip. probability: 60%
  • Precipitation: 24mm
  • 05:16 18:00 CST
Looking ahead, rainy weather and thunderstorms are anticipated daily.
Rainfall is predicted day-to-day, with daily precipitation varying from a minimal 1mm to a maximum of 31mm.
The maximum temperature will be almost identical in the coming days. The maximum temperature will vary between 20°C and 23°C, while the lowest nighttime temperatures will be also relatively consistent, as the minimum temperature will fluctuate between 15°C and 17°C.
The warmest days in San Marcos, Costa Rica, will be Thursday and next Friday, with a maximum of 23°C; today is the coldest day, with a maximum temperature of 20°C.
Updated: Jun 13, 2025 @ 08:51:06 UTC
Published by: Weather Atlas | About Us
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