San José Province · Costa Rica
San José in January
In January, San José averages a daytime high of 28 °C and a night-time low of 20 °C, with about 7 mm of rain over the month. By the measure used here it is one of the most comfortable months to visit; they run December to March.
- Average high
- 28 °C
- Average low
- 20 °C
- Rain in the month
- 7 mm
- Daylight on 15 Jan
- 11 h 40 min
- Comfortable month
- Yes
- Places to stay
- 113
When to go
How January compares with the rest of the year in San José
January is tied for the 4th warmest month in San José by average daytime high; across the year the highs run from 27 °C to 30 °C and the lows from 19 °C to 21 °C. By day, January is 1 °C warmer than December, and February is 1 °C warmer than January.
January brings 7 mm of rain, less than the monthly average of 184 mm (2206 mm a year); it is tied for the driest month.
On 15 January the sun is up for about 11 h 40 min, against 11 h 30 min at the shortest and 12 h 40 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 28 °C | 20 °C | 7 mm | Yes |
| February | 28 °C | 20 °C | 7 mm | Yes |
| March | 29 °C | 20 °C | 23 mm | Yes |
| April | 30 °C | 21 °C | 93 mm | |
| May | 29 °C | 21 °C | 317 mm | |
| June | 28 °C | 21 °C | 284 mm | |
| July | 28 °C | 21 °C | 236 mm | |
| August | 28 °C | 20 °C | 266 mm | |
| September | 27 °C | 20 °C | 341 mm | |
| October | 27 °C | 20 °C | 436 mm | |
| November | 27 °C | 19 °C | 175 mm | |
| December | 27 °C | 19 °C | 22 mm | Yes |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is January a good time to visit San José?
Yes, by the measure used here: in January the average high of 28 °C is between 18 °C and 29 °C and the 7 mm of rain is under 80 mm. The comfortable months in San José are December to March.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
Public holidays in Costa Rica in January
Nationwide public holidays; shops and offices may close on these dates.
When to go
Destinations near San José that are comfortable in January
Within 300 km, nearest first, by the same measure.
Where to stay
Where to stay in San José
This guide lists 113 places to stay in San José: 1 chain property with its details and own websites, and 112 hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 11; 1–3 km, 29; 3–10 km, 25; 10 km or more, 48.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; public holidays from python-holidays (MIT); places to stay from each operator's own public pages and Wikidata. How this guide is made.