Best time to go to San Isidro Average weather of San Isidro, Costa Rica

When is the best time to go to San Isidro?

When is the best time to go to San Isidro? Here's some information to help you in your decision:

The best months for good weather in San Isidro are January, February, March and December
On average, the warmest months are January, February, March, April, May and December
The rainiest months are May, June, July, August, September and October

Annual weather in San Isidro

For full information about the climate and weather in San Isidro a specific month, click on the corresponding line below:

Month			Our opinion
January	65°F/83°F	4.1in	perfect weather	San Isidro in january
February	67°F/85°F	2.5in	perfect weather	San Isidro in february
March	67°F/85°F	3.7in	good weather	San Isidro in march
April	67°F/83°F	12.2in	tolerable weather	San Isidro in april
May	65°F/79°F	37.3in	very bad weather	San Isidro in may
June	63°F/79°F	37.9in	very bad weather	San Isidro in june
July	63°F/79°F	33.5in	very bad weather	San Isidro in july
August	65°F/79°F	35in	very bad weather	San Isidro in august
September	67°F/77°F	34.6in	very bad weather	San Isidro in september
October	67°F/77°F	38.3in	very bad weather	San Isidro in october
November	67°F/77°F	20.6in	very bad weather	San Isidro in november
December	67°F/79°F	7.1in	good weather	San Isidro in december

Weather and climate in San Isidro

San Isidro enjoys an equatorial (or tropical rainforest) climate in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in San Isidro is 79°F (ranging from 77°F in october to 85°F in march). Annual rainfall is 266.4in, with a minimum of 2.5in in february and a maximum of 38.3in in october.

From january to february the climate is good. At lunchtime, it's 85°F in average and, in february, 4 days of rain are expected.
Between the months of march and april the climate is passable, but still OK. The temperature rises to 83°F.
Between may and november the climate is very unfavorable. the thermometer goes up to 77°F°C and it rains about 73% of the time in november.
In december the climate is passable, but still OK. By early evening, the temperature averages 59°F and you can expect to have 7.1in of rainfall/month during this period.

Charts: temperature and rainfall in San Isidro

In the charts below, you can see the following seasonal norms for the city of San Isidro: the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Humidity

Peak visitor numbers and tourist seasons in San Isidro

Find out when San Isidro has its high tourist season (the period when the influx of tourists is highest) and off-peak tourist season using our data and figures.

Tourist seasons in San Isidro

Very low season in San Isidro
The months with the lowest number of tourists are: May, June, September and October.
Low season in San Isidro
The months with low numbers of tourists are: April, July, August and November.
High season in San Isidro
The number of visitors to San Isidro is high in: February and March.
Peak season in San Isidro
The largest number of tourists visiting San Isidro is during: January and December.

Figure: Visitor index for San Isidro month by month

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Best time for low prices in San Isidro

Average prices of hotels in San Isidro month by month

Generally, October is the month with the lowest hotel prices in San Isidro. So this is a great time to save on your holiday! In contrast, January is statistically the most expensive month of the year for hotels.