When is the best time to go to San Antonio
The chart above shows the best time of year to visit San Antonio, Costa Rica. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in San Antonio
San Antonio weather by month
Please note our recommendations for when to visit San Antonio are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 0mm | 8.4hrs | 12.4hrs |
January is a very dry, humid month in San Antonio and the temperature is generally hot.
It is perhaps the perfect month to visit San Antonio, with some inordinately good weather at this time of year.
January is in the winter in San Antonio and is typically the coldest month of the year. Daytime maximum temperatures average around a muggy 27°C (81°F), whilst at night 19°C (67°F) is normal.
On average January is the driest month of the year in San Antonio with around 0mm 0 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 8.4 hours of sunshine per day.
San Antonio weather in January »
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 4mm | 8.9hrs | 12.5hrs |
February in San Antonio is generally very dry with the temperature being hot.
It is perhaps the perfect month to visit San Antonio, with some particularly good weather at this time of year.
February is in the winter in San Antonio and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 19°C (67°F) is normal.
On average February is the 2nd driest month of the year in San Antonio with around 4mm 0.2 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 8.9 hours of sunshine per day.
San Antonio weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 14mm | 8.7hrs | 12.8hrs |
The weather in March in San Antonio is characteristically hot, humid and dry.
It is perhaps the perfect month to visit San Antonio, with some particularly good weather at this time of year.
March is in the spring in San Antonio and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (83°F), whilst at night 20°C (67°F) is normal.
On average March is the 3rd driest month of the year in San Antonio with around 14mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.7 hours of sunshine per day.
San Antonio weather in March »
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 78mm | 8.2hrs | 13.1hrs |
San Antonio's weather in April is typically hot, humid and reasonably dry in nature.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit San Antonio.
April is in the spring in San Antonio and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 20°C (68°F) is normal.
On average April is the 4th driest month of the year in San Antonio with around 78mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
San Antonio weather in April »
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 264mm | 6.9hrs | 13.3hrs |
May is a very wet, humid month in San Antonio and the temperature is generally hot.
Based on weather alone, this is probably a time of year to avoid going to San Antonio for your holidays. The weather is often not a good and not conducive to spending time outdoors.
May is in the spring in San Antonio and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 20°C (68°F) is normal.
On average May is the 5th driest month of the year in San Antonio with around 264mm 10.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.9 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 263mm | 6.4hrs | 12.4hrs |
June in San Antonio is generally very wet with the temperature being hot.
Based on weather alone, this is probably a time of year to avoid going to San Antonio for your holidays. The weather is often not a good and not conducive to spending time outdoors.
June is in the summer in San Antonio and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 19°C (67°F) is normal.
On average June is the 6th driest month of the year in San Antonio with around 263mm 10.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 174mm | 6.4hrs | 12.5hrs |
July in San Antonio is generally wet with the temperature being hot.
Based on weather alone, this is probably a time of year to avoid going to San Antonio for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
July is in the summer in San Antonio and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 20°C (68°F) is normal.
On average July is the 6th wettest month of the year in San Antonio with around 174mm 6.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 250mm | 6.2hrs | 12.8hrs |
The weather in August in San Antonio is characteristically hot, humid and very wet.
Based on weather alone, this is probably a time of year to avoid going to San Antonio for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
August is in the summer in San Antonio and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 20°C (67°F) is normal.
On average August is the 5th wettest month of the year in San Antonio with around 250mm 9.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
San Antonio weather in August »
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 332mm | 5.9hrs | 13.1hrs |
San Antonio's weather in September is typically warm, humid and very wet in nature.
Based on weather alone, this is probably a time of year to avoid going to San Antonio for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
September is in the fall / autumn in San Antonio and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 19°C (67°F) is normal.
On average September is the 4th wettest month of the year in San Antonio with around 332mm 13.1 inches of rain making it a very wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
San Antonio weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 331mm | 5.9hrs | 13.3hrs |
October is a very wet, humid month in San Antonio and the temperature is generally warm.
Based on weather alone, this is probably a time of year to avoid going to San Antonio for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
October is in the fall / autumn in San Antonio and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (80°F), whilst at night 19°C (66°F) is normal.
On average October is the 3rd wettest month of the year in San Antonio with around 331mm 13 inches of rain making it a very wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
San Antonio weather in October »
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 115mm | 6.5hrs | 12.4hrs |
The weather in November in San Antonio is characteristically warm, humid and damp.
Based on weather alone, this is probably a time of year to avoid going to San Antonio for your holidays. The weather is often not a good and not conducive to spending time outdoors.
November is in the fall / autumn in San Antonio and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 19°C (67°F) is normal.
On average November is the 2nd wettest month of the year in San Antonio with around 115mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.5 hours of sunshine per day.
San Antonio weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 6mm | 7.6hrs | 12.5hrs |
December in San Antonio is generally very dry with the temperature being warm.
It is perhaps the perfect month to visit San Antonio, with some extremely good weather at this time of year.
December is in the winter in San Antonio and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 19°C (66°F) is normal.
On average December is the wettest month of the year in San Antonio with around 6mm 0.2 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
Other monthly averages
San Antonio weather stats
| Hottest month: | April | 28.6°C 83.5°F |
|---|---|---|
| Driest month: | January | 0mm 0ins |
| Sunniest month: | February | 8.9hrs |
| Coldest month: | October | 26.2°C 79.2°F |
| Wettest month: | September | 332mm 13.1ins |
| Warmest sea: | April | 29.5°C 85.1°F |
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