Isabela Weather in January
January in Isabela averages 28°C (82°F) during the day and 23°C (73°F) at night. The perfect conditions and moderate rainfall make it a solid month to visit.
Rainfall in Isabela in January
You can expect rain on around 19 days based on historical patterns, with 43 mm (1.7 in) average for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Isabela in January
January tends to be one of the perfect months in Isabela, with 28°C (82°F) in the afternoon and 23°C (73°F) overnight. This kind of day-to-night contrast is typical for this time of year. Nights are mild at around 23°C (73°F), which is comfortable for most people.If you're inclined towards comfortable temperatures and drier conditions, January is a good time to visit Isabela.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Puerto Rico, check out our Isabela's climate page.
Isabela Temperature in January
Min Temperature
23°C (73°F)
Max Temperature
28°C (82°F)
Chance of Rain
62%
Precipitation
43 mm (1.7 in)
Rainy days
19 days
Daily Historical Temperatures
50-year average (1977-2026)
Based on our historical records, temperatures in Isabela typically stay consistent throughout January, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in January
Historical weather for Isabela in January
Browse day-by-day weather records for Isabela spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Isabela historical weather extremes in January
According to our 25 years of weather records for Isabela, the following extremes were recorded between 2000 and 2025.
- On January 1, 2001, temperatures climbed to 33°C (91°F), marking the warmest January day on record.
- The coldest January day was on January 28, 2006, with a maximum of 24°C (75°F).
- Nighttime temperatures dropped to 13°C (55°F) on January 20, 2000, marking the coldest January night on record.
Best Places in Puerto Rico in January
Find out more about the weather in Puerto Rico and which places have the best travel conditions in this month. See all of Puerto Rico in January →
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What to Wear in Isabela in January
Warm temperatures in January make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Isabela in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Puerto Rico, check out our Isabela's climate page.
See the full Isabela climate overview or explore weather in Puerto Rico.
