San José Weather in January
What's the weather like in San José (Lambayeque) in January 2026?
The climate in San José during January can be summarized as hot, humid and very dry.
January is in the summer in San José and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (85°F), whilst at night 20°C (68°F) is normal.
| Daytime temperature | 29.7°C 85.4°F |
|---|---|
| Nightly temperature | 20°C 67.9°F |
| Average temperature | 24.8°C 76.6°F |
| Daily sunshine | 7.5 hrs |
| Avg rainfall | 5 mm 0.2 ins |
| Rainy days | 3 days |
| Sea temperature | 21.9°C 71.4°F |
| Humidity | 74% |
| Windspeed | 18.4kph 11 mph |
On average January is the 3rd wettest month of the year in San José with around 5mm 0.2 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 7.5 hours of sunshine per day.
January temperatures in San José
January rainfall
January hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San José in January 2025.
Other monthly averages
Best places to visit in January
San José weather stats
| Hottest month: | February | 30.7°C 87.3°F |
|---|---|---|
| Driest month: | June | 1mm 0ins |
| Sunniest month: | April | 7.7hrs |
| Coldest month: | August | 23.6°C 74.5°F |
| Wettest month: | March | 17mm 0.7ins |
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