When is the best time to go to San Juan
The chart above shows the best time of year to visit San Juan, Peru. 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 Juan
San Juan weather by month
Please note our recommendations for when to visit San Juan 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 |
|---|---|---|---|
| 18°C | 94mm | 5.1hrs | 13.2hrs |
January in San Juan is generally a little damp with the temperature being mild.
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 San Juan.
January is in the summer in San Juan and is typically the coldest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 8°C (46°F) is normal.
On average January is the driest month of the year in San Juan with around 94mm 3.7 inches of rain making it a a little damp 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 5.1 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 17°C | 103mm | 4.8hrs | 13hrs |
February in San Juan is generally damp with the temperature being mild.
Based on weather alone, this is probably a time of year to avoid going to San Juan for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
February is in the summer in San Juan and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around 19°C (67°F), whilst at night 8°C (46°F) is normal.
On average February is the 2nd driest month of the year in San Juan with around 103mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.8 hours of sunshine per day.
San Juan weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 17°C | 126mm | 4.5hrs | 12.8hrs |
The weather in March in San Juan is characteristically mild and wet.
Based on weather alone, this is probably a time of year to avoid going to San Juan for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
March is in the fall / autumn in San Juan and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around 19°C (67°F), whilst at night 8°C (46°F) is normal.
On average March is the 3rd driest month of the year in San Juan with around 126mm 5 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.5 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 81mm | 5.2hrs | 12.7hrs |
San Juan's weather in April is typically mild and a little damp in nature.
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit San Juan.
April is in the fall / autumn in San Juan and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 20°C (67°F), whilst at night 7°C (45°F) is normal.
On average April is the 4th driest month of the year in San Juan with around 81mm 3.2 inches of rain making it a a little damp 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 5.2 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 38mm | 6.5hrs | 12.5hrs |
May is a reasonably dry month in San Juan and the temperature is generally mild.
It is perhaps a good month to visit San Juan, with some particularly good weather at this time of year.
May is in the fall / autumn in San Juan and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 7°C (44°F) is normal.
On average May is the 5th driest month of the year in San Juan with around 38mm 1.5 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 6.5 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 15mm | 6.8hrs | 13.2hrs |
June is a dry month in San Juan and the temperature is generally mild.
It is perhaps the perfect month to visit San Juan, with some particularly good weather at this time of year.
June is in the winter in San Juan and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a cool 20°C (68°F), whilst at night 6°C (43°F) is normal.
On average June is the 6th driest month of the year in San Juan with around 15mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 11mm | 7.5hrs | 13hrs |
July in San Juan is generally dry with the temperature being mild.
It is perhaps the perfect month to visit San Juan, with some inordinately good weather at this time of year.
July is in the winter in San Juan and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 20°C (67°F), whilst at night 6°C (42°F) is normal.
On average July is the 6th wettest month of the year in San Juan with around 11mm 0.4 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.5 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 14mm | 6.8hrs | 12.8hrs |
The weather in August in San Juan is characteristically mild and dry.
It is perhaps the perfect month to visit San Juan, with some inordinately good weather at this time of year.
August is in the winter in San Juan and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 20°C (69°F), whilst at night 7°C (44°F) is normal.
On average August is the 5th wettest month of the year in San Juan with around 14mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 38mm | 5.5hrs | 12.7hrs |
San Juan's weather in September is typically mild 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 a good time to visit San Juan.
September is in the spring in San Juan and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 7°C (45°F) is normal.
On average September is the 4th wettest month of the year in San Juan with around 38mm 1.5 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 5.5 hours of sunshine per day.
San Juan weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 94mm | 5.5hrs | 12.5hrs |
October is a a little damp month in San Juan and the temperature is generally mild.
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 San Juan.
October is in the spring in San Juan and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 7°C (45°F) is normal.
On average October is the 3rd wettest month of the year in San Juan with around 94mm 3.7 inches of rain making it a a little damp 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 5.5 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 19°C | 74mm | 6.6hrs | 13.2hrs |
San Juan's weather in November is typically mild and reasonably dry in nature.
It is perhaps a good month to visit San Juan, with some very good weather at this time of year.
November is in the spring in San Juan and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 7°C (45°F) is normal.
On average November is the 2nd wettest month of the year in San Juan with around 74mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
San Juan weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 81mm | 5.8hrs | 13hrs |
December in San Juan is generally a little damp with the temperature being mild.
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit San Juan.
December is in the summer in San Juan and is typically the warmest month of the year. Daytime maximum temperatures average around 20°C (69°F), whilst at night 7°C (45°F) is normal.
On average December is the wettest month of the year in San Juan with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
Other monthly averages
San Juan weather stats
| Hottest month: | November | 20.2°C 68.4°F |
|---|---|---|
| Driest month: | July | 11mm 0.4ins |
| Sunniest month: | July | 7.5hrs |
| Coldest month: | July | 19.3°C 66.7°F |
| Wettest month: | March | 126mm 5ins |
| Warmest sea: | February | 23.1°C 73.6°F |
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