Rio Grande Weather in January
Thinking of visiting Rio Grande in January? Expect high temperatures reaching 28°C (82°F) during the day, dropping to 23°C (73°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Rio Grande in January
You can expect rain on roughly 20 days based on historical data, averaging 65 mm (2.6 in) for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.
Temperature in Rio Grande in January
January in Rio Grande is generally perfect, with days reaching 28°C (82°F) and nights settling around 23°C (73°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights remain mild at 23°C (73°F), making evenings a pleasant time to be outdoors.
Sunshine in Rio Grande in January
The city usually sees around 238 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Wind Speed in Rio Grande in January
Average wind speeds reach 3 m/s (6 knots) in January, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.
Average water temperature in January
With water at 26°C (79°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April and December typically offer the best weather for Rio Grande.
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 Rio Grande's climate page.
Rio Grande Temperature in January
Min Temperature
23°C (73°F)
Max Temperature
28°C (82°F)
Water Temperature
26°C (79°F) *
Chance of Rain
66%
Precipitation
65 mm (2.6 in)
Rainy days
20 days
Humidity
74% *
Windspeed
3 m/s (6 knots) *
Sunshine
238 hours *
Percentage Sunshine
70% *
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Rio Grande typically stay consistent throughout January, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Rio Grande in January
Browse day-by-day weather records for Rio Grande spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rio Grande historical weather extremes in January
According to our 49 years of weather records for Rio Grande, the following extremes were recorded between 1976 and 2025.
- The hottest January day on record in Rio Grande reached 33°C (91°F) (January 23, 2018).
- The lowest daytime temperature in January was 23°C (73°F), recorded on January 28, 2006.
- Rio Grande registered its coldest January night on January 20, 2000, with temperatures dropping to 17°C (63°F).
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 →
perfect weather
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tolerable
unpleasant
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What to Wear in Rio Grande 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. Expect water temperatures of around 26°C (79°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Rio Grande 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 Rio Grande's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Rio Grande climate overview or explore weather in Puerto Rico.
