When is the best time to go to Arenal
The chart above shows the best time of year to visit Arenal, Mexico. 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 Arenal
Arenal weather by month
Please note our recommendations for when to visit Arenal 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 |
|---|---|---|---|
| 23°C | 14mm | 7.3hrs | 11.8hrs |
The climate in Arenal during January can be summarized as mild and dry.
It is perhaps the perfect month to visit Arenal, with some extremely good weather at this time of year.
January is in the winter in Arenal and is typically the coldest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 8°C (47°F) is normal.
On average January is the driest month of the year in Arenal with around 14mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.3 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 6mm | 8.6hrs | 12.2hrs |
February in Arenal is generally very dry with the temperature being warm.
It is perhaps the perfect month to visit Arenal, with some surprisingly good weather at this time of year.
February is in the winter in Arenal and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 9°C (49°F) is normal.
On average February is the 2nd driest month of the year in Arenal 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 8.6 hours of sunshine per day.
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 7mm | 9hrs | 12.7hrs |
The weather in March in Arenal is characteristically warm and very dry.
It is perhaps the perfect month to visit Arenal, with some particularly good weather at this time of year.
March is in the spring in Arenal and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a comfortable 29°C (85°F), whilst at night 10°C (51°F) is normal.
On average March is the 3rd driest month of the year in Arenal with around 7mm 0.3 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 9 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 29°C | 9mm | 9.1hrs | 13.4hrs |
Arenal's weather in April is typically warm and very dry in nature.
It is perhaps a good month to visit Arenal, with some inordinately good weather at this time of year.
April is in the spring in Arenal and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a comfortable 32°C (90°F), whilst at night 13°C (55°F) is normal.
On average April is the 4th driest month of the year in Arenal with around 9mm 0.4 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 9.1 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 30°C | 28mm | 9.3hrs | 13.9hrs |
May is a dry month in Arenal and the temperature is generally hot.
It is perhaps a good month to visit Arenal, with some very good weather at this time of year.
May is in the spring in Arenal and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a comfortable 33°C (91°F), whilst at night 15°C (59°F) is normal.
On average May is the 5th driest month of the year in Arenal with around 28mm 1.1 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.3 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 28°C | 197mm | 7.5hrs | 11.8hrs |
The weather in June in Arenal is characteristically hot and wet.
Based on weather alone, this is probably a time of year to avoid going to Arenal for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
June is in the summer in Arenal and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 31°C (88°F), whilst at night 17°C (62°F) is normal.
On average June is the 6th driest month of the year in Arenal with around 197mm 7.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.5 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 247mm | 6.6hrs | 12.2hrs |
July in Arenal is generally very wet with the temperature being warm.
Based on weather alone, this is probably a time of year to avoid going to Arenal for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
July is in the summer in Arenal and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 16°C (61°F) is normal.
On average July is the 6th wettest month of the year in Arenal with around 247mm 9.7 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 6.6 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 212mm | 6.9hrs | 12.7hrs |
The weather in August in Arenal is characteristically warm, humid and very wet.
Based on weather alone, this is probably a time of year to avoid going to Arenal for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
August is in the summer in Arenal and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 16°C (61°F) is normal.
On average August is the 5th wettest month of the year in Arenal with around 212mm 8.4 inches of rain making it a very wet 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 6.9 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 152mm | 6.3hrs | 13.4hrs |
Arenal's weather in September is typically warm, humid and wet in nature.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Arenal.
September is in the fall / autumn in Arenal and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 16°C (61°F) is normal.
On average September is the 4th wettest month of the year in Arenal with around 152mm 6 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 62mm | 7.4hrs | 13.9hrs |
October is a reasonably dry, humid month in Arenal and the temperature is generally warm.
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 Arenal.
October is in the fall / autumn in Arenal and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 14°C (57°F) is normal.
On average October is the 3rd wettest month of the year in Arenal with around 62mm 2.4 inches of rain making it a reasonably 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 7.4 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 15mm | 8hrs | 11.8hrs |
The climate in Arenal during November can be summarized as warm and dry.
It is perhaps the perfect month to visit Arenal, with some extremely good weather at this time of year.
November is in the fall / autumn in Arenal and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (80°F), whilst at night 11°C (52°F) is normal.
On average November is the 2nd wettest month of the year in Arenal with around 15mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 23°C | 18mm | 6.6hrs | 12.2hrs |
December in Arenal is generally dry with the temperature being mild.
It is perhaps the perfect month to visit Arenal, with some particularly good weather at this time of year.
December is in the winter in Arenal and is typically the warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 9°C (48°F) is normal.
On average December is the wettest month of the year in Arenal with around 18mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
Other monthly averages
Arenal weather stats
| Hottest month: | May | 32.6°C 90.7°F |
|---|---|---|
| Driest month: | February | 6mm 0.2ins |
| Sunniest month: | March | 9hrs |
| Coldest month: | January | 24.6°C 76.3°F |
| Wettest month: | July | 247mm 9.7ins |
| Warmest sea: | August | 29.8°C 85.6°F |
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