Weather
When is the best time to visit San José?
Monthly averages. The current month is highlighted.
High and low temperature
Cold (high ≤ 8 °C)
Cool
Mild
Warm
Rain millimetres per month
The climate in numbers
Warmest month
30°
April
Coldest month
15°
January
Wettest month
296mm
September
Rain per year
1,668mm
Rainy days per year
133
| Month | High | Low | Rain | Rainy days | Daylight |
|---|---|---|---|---|---|
| January | 28.1 °C | 14.5 °C | 11 mm | 1.1 | 11.6 h |
| February | 29.3 °C | 14.5 °C | 14 mm | 1.4 | 11.8 h |
| March | 30.2 °C | 14.8 °C | 13 mm | 1.9 | 12.1 h |
| April | 30.4 °C | 15.4 °C | 68 mm | 6.8 | 12.4 h |
| May | 29.5 °C | 15.9 °C | 244 mm | 17.0 | 12.6 h |
| June | 29.0 °C | 16.0 °C | 221 mm | 18.0 | 12.7 h |
| July | 28.9 °C | 16.0 °C | 150 mm | 13.6 | 12.6 h |
| August | 28.8 °C | 15.6 °C | 201 mm | 16.0 | 12.4 h |
| September | 28.7 °C | 15.4 °C | 296 mm | 21.9 | 12.2 h |
| October | 28.3 °C | 15.2 °C | 290 mm | 19.2 | 11.9 h |
| November | 27.8 °C | 15.3 °C | 135 mm | 12.0 | 11.7 h |
| December | 28.0 °C | 15.0 °C | 25 mm | 3.9 | 11.5 h |
Plan your trip to San José
Tours in San José
Tours, tickets and activities to book ahead.
See tours
What to pack
What to wear in San José
Day28 °C
Night15 °C
Rain11 mm
January in San José: warm, with highs of 28 °C and lows of 15 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Warm layer Light sweater for the evening
-
Shoes Sandals or light sneakers
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for jacket.
- There are about 14 °C between midday and dawn. Wear layers you can take off.
- It rarely rains this month. You can leave the umbrella at home.
Day29 °C
Night15 °C
Rain14 mm
February in San José: warm, with highs of 29 °C and lows of 15 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Warm layer Light sweater for the evening
-
Shoes Sandals or light sneakers
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for jacket.
- There are about 15 °C between midday and dawn. Wear layers you can take off.
- It rarely rains this month. You can leave the umbrella at home.
Day30 °C
Night15 °C
Rain13 mm
March in San José: warm, with highs of 30 °C and lows of 15 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Warm layer Light sweater for the evening
-
Shoes Sandals or light sneakers
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for jacket.
- There are about 15 °C between midday and dawn. Wear layers you can take off.
- It rarely rains this month. You can leave the umbrella at home.
- Middays are very hot: wear light, breathable clothes and keep water at hand.
Day30 °C
Night15 °C
Rain68 mm
April in San José: warm, with highs of 30 °C and lows of 15 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Jacket Light windbreaker
-
Shoes Sandals or light sneakers
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer.
- There are about 15 °C between midday and dawn. Wear layers you can take off.
- Middays are very hot: wear light, breathable clothes and keep water at hand.
Day30 °C
Night16 °C
Rain244 mm
May in San José: warm, with highs of 30 °C and lows of 16 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Jacket Light windbreaker
-
Shoes Closed, water-resistant shoes
-
Accessory Folding umbrella
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer.
- There are about 14 °C between midday and dawn. Wear layers you can take off.
- It is one of the wettest months, with 244 mm. Bring something waterproof.
Day29 °C
Night16 °C
Rain221 mm
June in San José: warm, with highs of 29 °C and lows of 16 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Jacket Light windbreaker
-
Shoes Closed, water-resistant shoes
-
Accessory Folding umbrella
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer.
- There are about 13 °C between midday and dawn. Wear layers you can take off.
- It is one of the wettest months, with 221 mm. Bring something waterproof.
Day29 °C
Night16 °C
Rain150 mm
July in San José: warm, with highs of 29 °C and lows of 16 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Jacket Light windbreaker
-
Shoes Closed, water-resistant shoes
-
Accessory Folding umbrella
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer.
- There are about 13 °C between midday and dawn. Wear layers you can take off.
- It is one of the wettest months, with 150 mm. Bring something waterproof.
Day29 °C
Night16 °C
Rain201 mm
August in San José: warm, with highs of 29 °C and lows of 16 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Jacket Light windbreaker
-
Shoes Closed, water-resistant shoes
-
Accessory Folding umbrella
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer.
- There are about 13 °C between midday and dawn. Wear layers you can take off.
- It is one of the wettest months, with 201 mm. Bring something waterproof.
Day29 °C
Night15 °C
Rain296 mm
September in San José: warm, with highs of 29 °C and lows of 15 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Jacket Light windbreaker
-
Shoes Closed, water-resistant shoes
-
Accessory Folding umbrella
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer.
- There are about 13 °C between midday and dawn. Wear layers you can take off.
- It is one of the wettest months, with 296 mm. Bring something waterproof.
Day28 °C
Night15 °C
Rain290 mm
October in San José: warm, with highs of 28 °C and lows of 15 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Jacket Light windbreaker
-
Shoes Closed, water-resistant shoes
-
Accessory Folding umbrella
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer.
- There are about 13 °C between midday and dawn. Wear layers you can take off.
- It is one of the wettest months, with 290 mm. Bring something waterproof.
Day28 °C
Night15 °C
Rain135 mm
November in San José: warm, with highs of 28 °C and lows of 15 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Jacket Light windbreaker
-
Shoes Closed, water-resistant shoes
-
Accessory Folding umbrella
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer.
- There are about 13 °C between midday and dawn. Wear layers you can take off.
- It is one of the wettest months, with 135 mm. Bring something waterproof.
Day28 °C
Night15 °C
Rain25 mm
December in San José: warm, with highs of 28 °C and lows of 15 °C. Dress in layers.
-
Base layer Light cotton or linen T-shirts
-
Shoes Sandals or light sneakers
-
Accessory Sunglasses
-
Accessory Sunscreen
-
Accessory Cap or hat
No need for warm layer or jacket.
- There are about 13 °C between midday and dawn. Wear layers you can take off.
- It rarely rains this month. You can leave the umbrella at home.
Curious facts about San José
- It is the coolest of the 5 destinations we cover in Costa Rica: 22.1 °C average temperature over the year.
- It is the highest of the 5 destinations we cover in Costa Rica, at 1,161 metres above sea level.
- The weather is pleasant for walking around in December: not too hot, not too cold, and little rain.
- 84% of the year's rain falls between May and October.
- The temperature barely changes over the year: the average high goes from 28° to 30°.
Near San José
Nearby destinations
Straight-line distance and temperature in October.
Keep exploring
More destinations
-
New York City
United States
October: 18° / 11°
-
Barcelona
Spain
October: 23° / 15°
-
Paris
France
October: 17° / 10°
-
London
United Kingdom
October: 16° / 10°
-
Los Angeles
United States
October: 23° / 15°
-
Berlin
Germany
October: 14° / 7°
-
Amsterdam
Kingdom of the Netherlands
October: 15° / 8°
-
Istanbul
Turkey
October: 20° / 13°
-
Chicago
United States
October: 18° / 8°
-
Madrid
Spain
October: 20° / 11°
-
Sydney
Australia
October: 24° / 15°
-
Mexico City
Mexico
October: 23° / 13°