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Dominican Republic weather

Weather in San Juan for January 2027

Your guide to San Juan weather in January - trends and predictions

    Temperatures

  • In general, the average temperature in San Juan at the beginning of January is 27.2 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 28.8 °C by the end of January.

    • Rain 🌧️

  • With an average of 2 rainy days, San Juan experiences minimal rainfall in January.

    • More

  • Is January a good time to visit San Juan? check out the best time to travel to San Juan page.

Average dry days
29
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/16°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
73 %
Avg humidity

San Juan Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
25°
2
Patchy rain possible
27°
3
Patchy rain possible
28°
4
Patchy rain possible
27°
5
Patchy rain possible
27°
6
Partly cloudy
27°
7
Partly cloudy
28°
8
Sunny
28°
9
Patchy rain possible
29°
10
Sunny
29°
11
Partly cloudy
29°
12
Patchy rain possible
29°
13
Patchy rain possible
29°
14
Patchy rain possible
30°
15
Sunny
29°
16
Patchy rain possible
29°
17
Partly cloudy
28°
18
Sunny
30°
19
Patchy rain possible
30°
20
Mist
30°
21
Patchy light drizzle
30°
22
Patchy rain possible
29°
23
Patchy rain possible
28°
24
Patchy rain possible
28°
25
Partly cloudy
28°
26
Sunny
30°
27
Partly cloudy
29°
28
Light rain
28°
29
Mist
29°
30
Patchy rain possible
29°
31
Light rain shower
28°

Temperatures trend during January in San Juan

See the weather trend as well as the moving average line

January weather in San Juan day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
1 Jan. Light rain
Light rain
 25° /18° 3.5 mm 5
2 Jan. Patchy rain possible
Patchy rain possible
 27° /16° 0.2 mm 5
3 Jan. Patchy rain possible
Patchy rain possible
 28° /15° 0.1 mm 6
4 Jan. Patchy rain possible
Patchy rain possible
 27° /16° 0.2 mm 5
5 Jan. Patchy rain possible
Patchy rain possible
 27° /15° 0.2 mm 5
6 Jan. Partly cloudy
Partly cloudy
 27° /14° 0.1 mm 6
7 Jan. Partly cloudy
Partly cloudy
 28° /17° 0.2 mm 6
8 Jan. Sunny
Sunny
 28° /15° 0 mm 6
9 Jan. Patchy rain possible
Patchy rain possible
 29° /17° 0 mm 6
10 Jan. Sunny
Sunny
 29° /16° 0 mm 6
11 Jan. Partly cloudy
Partly cloudy
 29° /15° 0 mm 6.4
12 Jan. Patchy rain possible
Patchy rain possible
 29° /15° 0.3 mm 6
13 Jan. Patchy rain possible
Patchy rain possible
 29° /17° 0.1 mm 6
14 Jan. Patchy rain possible
Patchy rain possible
 30° /18° 0 mm 6
15 Jan. Sunny
Sunny
 29° /17° 0 mm 6
16 Jan. Patchy rain possible
Patchy rain possible
 29° /16° 0.2 mm 5
17 Jan. Partly cloudy
Partly cloudy
 28° /16° 0 mm 6.6
18 Jan. Sunny
Sunny
 30° /15° 0 mm 6.7
19 Jan. Patchy rain possible
Patchy rain possible
 30° /17° 0 mm 6.7
20 Jan. Mist
Mist
 30° /17° 0.1 mm 6
21 Jan. Patchy light drizzle
Patchy light drizzle
 30° /14° 1.3 mm 6.8
22 Jan. Patchy rain possible
Patchy rain possible
 29° /16° 0.1 mm 6.8
23 Jan. Patchy rain possible
Patchy rain possible
 28° /15° 1.2 mm 6
24 Jan. Patchy rain possible
Patchy rain possible
 28° /16° 0 mm 6
25 Jan. Partly cloudy
Partly cloudy
 28° /16° 0 mm 6
26 Jan. Sunny
Sunny
 30° /15° 0 mm 7
27 Jan. Partly cloudy
Partly cloudy
 29° /16° 0 mm 7
28 Jan. Light rain
Light rain
 28° /17° 5.4 mm 6
29 Jan. Mist
Mist
 29° /18° 0.8 mm 6
30 Jan. Patchy rain possible
Patchy rain possible
 29° /15° 0.3 mm 6
31 Jan. Light rain shower
Light rain shower
 28° /17° 0.8 mm 7
Next
Important Notice
Our weather forecast for San Juan in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Juan forecast closer to your planned date for the most up-to-date weather information.
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San Juan in January - FAQ

What are the expected maximum and minimum temperatures in San Juan during January?
During January, expect a variety of temperatures with highs around 29° and lows near 16°, suitable for diverse activities and preferences.

How much rainfall should be expected in San Juan during January?
Expect minimal rainfall in San Juan during January, with a total of 15.1 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.

What are the typical wind conditions in San Juan during January?
The average wind speed in San Juan during January is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

San Juan water temperatures in January

The average water temperature of the Caribbean Sea near San Juan in January is 26.7 °C. At the beginning of January temperatures are around 26.8 °C; by the end of the month they stay fairly steady and reach 26.6 °C.

What is the water temperature in San Juan in January?
The average water temperature in San Juan in January is 26.7 °C.
Can you swim in San Juan in January?
Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.

January rainfall patterns in San Juan

Explore the daily rainfall trends and prepare for San Juans January weather 💧
Typically, San Juan has 2 rainy days in January with a total of 15.1 mm of rainfall.

UV exposure in San Juan during January

Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
Provinces in San Juan
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San Juan de la Maguana
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