Our verdict
The best time to visit San Carlos is January-March
In the height of summer, temperatures in San Carlos can reach a maximum of 40℃ (104℉). The weather at night in the winter, which is around January-time, can get down to a minimum of 15℃ (58℉).
The longest days between sunrise and sunset in San Carlos are usually in May, so if you want to get the most out of your daytime activities, be sure to plan your visit around this time. You don’t want to get wet on your holiday, do you? Well if you’re trying to avoid the rain, then steer clear of San Carlos in October. Head over there in March instead if you want to increase your chances of not being rained on.
Keep reading to learn more about the best times to go to San Carlos, including detailed weather information and tools to help you find and book great deals on your travel.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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San Carlos seasons
Before you continue, it’s important to know when the seasons are in San Carlos as they might be different to yours depending on where in the world you’re travelling from. San Carlos is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in San Carlos
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in San Carlos for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
San Carlos climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in San Carlos for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
San Carlos in January
- Average temperature: 21℃ (70℉)
- Average high temperature: 27℃ (80℉)
- Average low temperature: 16℃ (61℉)
- Average humidity: 84%
- Average sunny days: 13 days
- Average rainfall: 81mm (3") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in January, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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San Carlos in February
- Average temperature: 23℃ (73℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 17℃ (63℉)
- Average humidity: 79%
- Average sunny days: 15 days
- Average rainfall: 50mm (2") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in February, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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San Carlos in March
- Average temperature: 24℃ (76℉)
- Average high temperature: 32℃ (89℉)
- Average low temperature: 18℃ (65℉)
- Average humidity: 71%
- Average sunny days: 18 days
- Average rainfall: 49mm (2") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in March, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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San Carlos in April
- Average temperature: 28℃ (82℉)
- Average high temperature: 36℃ (96℉)
- Average low temperature: 21℃ (70℉)
- Average humidity: 63%
- Average sunny days: 15 days
- Average rainfall: 69mm (3") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in April, make sure you pack t-shirts, shorts and sun protection for the day, and maybe a very thin sweater for the evenings if you're a cold frog.
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San Carlos in May
- Average temperature: 28℃ (83℉)
- Average high temperature: 35℃ (96℉)
- Average low temperature: 23℃ (73℉)
- Average humidity: 66%
- Average sunny days: 12 days
- Average rainfall: 93mm (4") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in May, make sure you pack t-shirts, shorts and sun protection for the day, and maybe a very thin sweater for the evenings if you're a cold frog.
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San Carlos in June
- Average temperature: 27℃ (80℉)
- Average high temperature: 33℃ (91℉)
- Average low temperature: 22℃ (72℉)
- Average humidity: 80%
- Average sunny days: 9 days
- Average rainfall: 175mm (7") over 21 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in June, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
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San Carlos in July
- Average temperature: 26℃ (79℉)
- Average high temperature: 33℃ (91℉)
- Average low temperature: 21℃ (71℉)
- Average humidity: 77%
- Average sunny days: 15 days
- Average rainfall: 78mm (3") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in July, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
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San Carlos in August
- Average temperature: 26℃ (79℉)
- Average high temperature: 33℃ (91℉)
- Average low temperature: 21℃ (70℉)
- Average humidity: 80%
- Average sunny days: 12 days
- Average rainfall: 101mm (4") over 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in August, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
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San Carlos in September
- Average temperature: 25℃ (78℉)
- Average high temperature: 31℃ (89℉)
- Average low temperature: 21℃ (70℉)
- Average humidity: 85%
- Average sunny days: 7 days
- Average rainfall: 132mm (5") over 23 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in September, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
San Carlos in October
- Average temperature: 24℃ (76℉)
- Average high temperature: 30℃ (86℉)
- Average low temperature: 20℃ (68℉)
- Average humidity: 85%
- Average sunny days: 6 days
- Average rainfall: 176mm (7") over 23 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in October, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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San Carlos in November
- Average temperature: 23℃ (73℉)
- Average high temperature: 28℃ (83℉)
- Average low temperature: 18℃ (65℉)
- Average humidity: 85%
- Average sunny days: 10 days
- Average rainfall: 104mm (4") over 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in November, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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San Carlos in December
- Average temperature: 22℃ (71℉)
- Average high temperature: 27℃ (81℉)
- Average low temperature: 17℃ (63℉)
- Average humidity: 84%
- Average sunny days: 14 days
- Average rainfall: 80mm (3") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to San Carlos in December, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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