San José Province Weather in May

Average temperatures, rainfall, sunshine and the best places to visit in San José Province, Costa Rica in May.

Planning a trip to San José Province, Costa Rica this May? Here's what you need to know about the weather:

What to Expect in San José Province in May

San José Province, Costa Rica is a region in Costa Rica. May in San José Province generally has temperatures that range from warm to very warm, with heavy precipitation.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is warm in La Ese at 24°C (75°F) to very warm in Carrillo at 30°C (86°F). Nighttime temperatures generally drop to 25°C (77°F) in Carrillo and 17°C (63°F) in La Ese.

For specific regional insights in San José Province, Costa Rica, refer to the map provided below.

Precipitation

In May, precipitation varies across different areas. From heavy rainfall in Puriscal with an average of 290 mm (11 in) to heavy rainfall in San Isidro with 582 mm (23 in).

Average sunshine

Sunshine is moderately available across various locations. In San José, you can expect around 183 hours of sunlight in May, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore San José Province by month

Best Places to Visit in San José Province in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across San José Province.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in San José Province

What is the weather like in May for some of the most popular destinations in San José Province, Costa Rica?

Temperature range in San José Province (May)

Precipitation variation in San José Province (May)

San José

In May San José generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 17°C (63°F) and heavy monthly rainfall. So on average the conditions are poor that month.

May
April
May
June
Max temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Min temperature
16°C (61°F)
17°C (63°F)
17°C (63°F)
Monthly sun hours
241 hours
183 hours
145 hours
Monthly rainfall
123 mm (4.8 in)
403 mm (16 in)
455 mm (18 in)
Monthly rainy days
11 days
19 days
24 days
Weather conditions

Heredia

In May Heredia generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 17°C (63°F) and heavy monthly rainfall. So on average the conditions are poor that month.

May
April
May
June
Max temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Min temperature
17°C (63°F)
17°C (63°F)
17°C (63°F)
Monthly sun hours
241 hours
183 hours
145 hours
Monthly rainfall
93 mm (3.7 in)
351 mm (14 in)
409 mm (16 in)
Monthly rainy days
11 days
20 days
24 days
Weather conditions

Carrillo

In May Carrillo generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

May
April
May
June
Max temperature
32°C (90°F)
30°C (86°F)
30°C (86°F)
Min temperature
25°C (77°F)
25°C (77°F)
24°C (75°F)
Monthly sun hours
255 hours
203 hours
156 hours
Monthly rainfall
92 mm (3.6 in)
359 mm (14 in)
394 mm (16 in)
Monthly rainy days
8 days
17 days
22 days
Weather conditions

Santa Ana

In May Santa Ana generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 18°C (64°F) and heavy monthly rainfall. So on average the conditions are poor that month.

May
April
May
June
Max temperature
27°C (81°F)
26°C (79°F)
25°C (77°F)
Min temperature
17°C (63°F)
18°C (64°F)
18°C (64°F)
Monthly sun hours
241 hours
183 hours
145 hours
Monthly rainfall
124 mm (4.9 in)
415 mm (16 in)
483 mm (19 in)
Monthly rainy days
10 days
19 days
24 days
Weather conditions

San Gerardo de Dota

In May San Gerardo de Dota generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 17°C (63°F) and heavy monthly rainfall. So on average the conditions are poor that month.

May
April
May
June
Max temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Min temperature
16°C (61°F)
17°C (63°F)
17°C (63°F)
Monthly sun hours
240 hours
190 hours
148 hours
Monthly rainfall
193 mm (7.6 in)
525 mm (21 in)
514 mm (20 in)
Monthly rainy days
12 days
20 days
24 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in San José Province, in Costa Rica.

In our records: Costa Rica May extremes

Notable May records observed across cities in Costa Rica in our climate database (1994 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest May day in Costa Rica reached 40°C (104°F) in Sámara on May 13, 1998.
  • In our records, the coldest May daytime high in Costa Rica was 19°C (66°F) in Puntarenas on May 29, 2008.

Popular cities in May

Day & night temperatures, rainfall and average weather in San José Province in May.

City Weather Day temp Night temp Rainfall
San José 25°C (77°F) 17°C (63°F) 403 mm (16 in)
Heredia 25°C (77°F) 17°C (63°F) 351 mm (14 in)
Carrillo 30°C (86°F) 25°C (77°F) 359 mm (14 in)
Santa Ana 26°C (79°F) 18°C (64°F) 415 mm (16 in)
San Gerardo de Dota 24°C (75°F) 17°C (63°F) 525 mm (21 in)
San Isidro 24°C (75°F) 18°C (64°F) 582 mm (23 in)

San José Province weather in May: frequently asked questions

What is the weather like in San José Province, Costa Rica in May?

Expect poor weather across San José Province, Costa Rica in May. The popular destination of San José averages 25°C (77°F) by day and 17°C (63°F) at night during this month.

What is the average temperature in San José Province, Costa Rica in May?

Average temperatures in San José Province, Costa Rica during May range from a nighttime low near 17°C (63°F) to a daytime high around 25°C (77°F) in San José.

Does San José Province, Costa Rica get a lot of rain in May?

Rainfall in San José Province, Costa Rica peaks during May. San José averages roughly 403 mm (16 in), so frequent and sometimes heavy showers are the norm.

Is May a Good Time to Visit San José Province, Costa Rica?

Given the typically poor weather conditions in San José, May may not be the ideal time to visit San José Province, Costa Rica.

Generally speaking, January, February and March provide perfect weather in San José. On the other hand, the months of May, June, July, August, September, October and November tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in San José Province.

Weather and climate has detailed information for every country in the world. Are you going to Costa Rica? Get detailed historical weather averages for many cities in Costa Rica.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.