San José
January
Weather in San José for January 2026
Your guide to San José weather in January - trends and predictions
In general, the average temperature in San José at the beginning of January is 24.9 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 25.4 °C by the end of January.
The climate of San José in January is notably wet, with an average of 15 rainy days, and a total of 27.9 mm of precipitation.
Temperatures
Rain 🌧️
16
Dry days
15
Rainy days
0
Snow days
25°/12°
Temperatures
9 km/h
Avg max wind
80 %
Avg humidity
San José Weather January
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2 24° | 3 26° | 4  24° | |||
| 5  25° | 6  26° | 7 25° | 8 23° | 9 25° | 10 26° | 11 27° |
| 12 26° | 13 25° | 14 25° | 15 25° | 16 26° | 17 25° | 18 25° |
| 19 27° | 20 26° | 21 26° | 22 24° | 23 25° | 24 25° | 25 24° |
| 26 24° | 27 25° | 28 25° | 29 27° | 30 26° | 31 27° |
You can click on date
Access San José weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during January in San José
See the weather trend as well as the moving average line
January weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jan. | Patchy rain possible | 24° /12° | 2.6 mm | 6 | |
| 2 Jan. | Patchy rain possible | 24° /11° | 0.7 mm | 5 | |
| 3 Jan. | Light rain shower | 26° /12° | 1.1 mm | 6 | |
| 4 Jan. | Partly cloudy | 24° /12° | 1 mm | 6 | |
| 5 Jan. | Overcast | 25° /12° | 0.8 mm | 6 | |
| 6 Jan. | Cloudy | 26° /13° | 1.1 mm | 6 | |
| 7 Jan. | Cloudy | 25° /12° | 0.8 mm | 6 | |
| 8 Jan. | Patchy rain possible | 23° /13° | 1.6 mm | 5 | |
| 9 Jan. | Patchy rain possible | 25° /13° | 1 mm | 5 | |
| 10 Jan. | Cloudy | 26° /12° | 0.7 mm | 6 | |
| 11 Jan. | Patchy rain possible | 27° /12° | 0.8 mm | 6 | |
| 12 Jan. | Patchy rain possible | 26° /13° | 0.8 mm | 6 | |
| 13 Jan. | Overcast | 25° /12° | 1.1 mm | 6 | |
| 14 Jan. | Patchy rain possible | 25° /11° | 0.6 mm | 5 | |
| 15 Jan. | Patchy rain possible | 25° /11° | 1 mm | 5 | |
| 16 Jan. | Patchy rain possible | 26° /10° | 0.3 mm | 6 | |
| 17 Jan. | Patchy rain possible | 25° /12° | 0.6 mm | 6 | |
| 18 Jan. | Patchy rain possible | 25° /13° | 1.1 mm | 5 | |
| 19 Jan. | Overcast | 27° /12° | 0.8 mm | 6 | |
| 20 Jan. | Patchy rain possible | 26° /11° | 0.5 mm | 6 | |
| 21 Jan. | Patchy rain possible | 26° /11° | 0.6 mm | 6 | |
| 22 Jan. | Patchy rain possible | 24° /12° | 1.2 mm | 5 | |
| 23 Jan. | Patchy rain possible | 25° /13° | 0.9 mm | 6 | |
| 24 Jan. | Light rain shower | 25° /12° | 1 mm | 6 | |
| 25 Jan. | Patchy rain possible | 24° /13° | 1.2 mm | 6 | |
| 26 Jan. | Patchy rain possible | 24° /12° | 0.9 mm | 5 | |
| 27 Jan. | Overcast | 25° /12° | 0.6 mm | 6 | |
| 28 Jan. | Patchy rain possible | 25° /12° | 0.6 mm | 6 | |
| 29 Jan. | Patchy rain possible | 27° /11° | 0.4 mm | 6 | |
| 30 Jan. | Patchy rain possible | 26° /11° | 0.2 mm | 6 | |
| 31 Jan. | Partly cloudy | 27° /12° | 1.1 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for San José 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 José forecast closer to your planned date for the most up-to-date weather information.
San José in January - FAQ
What are the expected maximum and minimum temperatures in San José during January?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in San José during January?
In January, San José can expect light to moderate rainfall, totaling 27.9 mm across approximately 15 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in San José during January?
The average wind speed in San José during January is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in San José
Explore the daily rainfall trends and prepare for San Josés January weather 💧
UV exposure in San José during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
Provinces in San José
Select a province for an accurate weather forecast
Top locations in San José
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is San José?Get accurate weather forecasts for San José, located at latitude 9.933 and longitude -84.083. Stay updated with localized weather information tailored for San José.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.