What’s the climate like in San Isidro?
The current climate of San Isidro features average monthly temperatures ranging from highs of 32°C during the day to lows of 29°C. The average yearly temperature is around 31°C. At night, temperatures in the colder months average around 23°C and in the warmer months around 26°C.
The highest temperature recorded in San Isidro in recent years was 35°C in September 2023. The lowest daytime temperature recorded was 23°C in February 2022.
On average, San Isidro receives 2362 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
The hurricane season in San Isidro runs from June to November.
Best time to visit San Isidro?
The best time to visit San Isidro for pleasant to warm weather is January through October and December. There might be some rain during this period, but the temperatures are just right for exploring San Isidro.
Climate Table of San Isidro
The climate table of San Isidro shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. max (°C) | 29 | 29 | 29 | 30 | 31 | 32 | 32 | 32 | 32 | 32 | 31 | 30 |
| Temp. min (°C) | 24 | 24 | 24 | 24 | 25 | 26 | 27 | 27 | 27 | 26 | 25 | 24 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| Precipitation (mm) | 185 | 217 | 131 | 205 | 195 | 134 | 257 | 246 | 125 | 187 | 369 | 111 |
| UV Index | 3 | 6 | 7 | 5 | 5 | 7 | 7 | 7 | 7 | 5 | 6 | 6 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 31°C
- Highest temperature: 32°C in June, July, August, September and October
- Lowest temperature: 29°C in January, February and March
- Precipitation: 2362 mm per year, averaging 197 mm per month
- Driest months: 111 mm in December, 125 mm in September and 131 mm in March
- Wettest months: 369 mm in November, 257 mm in July and 246 mm in August
Table of Contents
Average Temperature per Month in San Isidro
This graph shows the average maximum temperatures per month in San Isidro, Puerto Rico. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in San Isidro
This graph shows how much precipitation San Isidro, Puerto Rico, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in San Isidro
This graph shows the average UV index per month in San Isidro, Puerto Rico. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in San Isidro
This graph shows the average yearly temperature in San Isidro, Puerto Rico. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in San Isidro
This chart shows the total yearly precipitation in San Isidro, Puerto Rico, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in San Isidro
Have you been to San Isidro?
Share your weather experiences in San Isidro.
Average Weather in San Isidro by Month
Click on a month below to see detailed weather info for San Isidro. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
