San José
May
Weather in San José for May 2025
Your guide to San José weather in May - trends and predictions
In general, the average temperature in San José at the beginning of May is 28 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 25.4 °C by the end of May.
San José experiences an exceptionally high level of rainfall in May, with more than 24 rainy days on average.
Is May a good time to visit San José? check out the best time to travel to San José page.
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6
Dry days
25
Rainy days
0
Snow days
27°/15°
Temperatures
6 km/h
Avg max wind
83 %
Avg humidity
San José in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 27° | 3 29° | 4  28° | |||
| 5  28° | 6  28° | 7 28° | 8 28° | 9  27° | 10 28° | 11 28° |
| 12 27° | 13 26° | 14 27° | 15 27° | 16 25° | 17 26° | 18 28° |
| 19 27° | 20 26° | 21 28° | 22 27° | 23 28° | 24 28° | 25 27° |
| 26 26° | 27 26° | 28 27° | 29 25° | 30 24° | 31 23° |
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Temperatures trend during May in San José
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Moderate or heavy rain shower | 28° /15° | 3.8 mm | 6 | |
| 2 May | Moderate or heavy rain shower | 27° /16° | 8.6 mm | 6 | |
| 3 May | Moderate or heavy rain shower | 29° /14° | 6.5 mm | 6 | |
| 4 May | Heavy rain at times | 28° /16° | 2.8 mm | 6 | |
| 5 May | Cloudy | 28° /16° | 3.4 mm | 6 | |
| 6 May | Overcast | 28° /15° | 1.1 mm | 6 | |
| 7 May | Cloudy | 28° /16° | 2 mm | 6 | |
| 8 May | Overcast | 28° /14° | 3 mm | 6 | |
| 9 May | Patchy rain possible | 27° /14° | 4.6 mm | 6 | |
| 10 May | Patchy rain possible | 28° /15° | 26.2 mm | 6 | |
| 11 May | Moderate or heavy rain shower | 28° /15° | 6.8 mm | 6 | |
| 12 May | Moderate or heavy rain shower | 27° /15° | 14.3 mm | 6 | |
| 13 May | Moderate or heavy rain shower | 26° /15° | 11.9 mm | 6 | |
| 14 May | Moderate or heavy rain shower | 27° /15° | 7.1 mm | 6 | |
| 15 May | Moderate or heavy rain shower | 27° /15° | 12.6 mm | 6 | |
| 16 May | Moderate or heavy rain shower | 25° /15° | 26.4 mm | 6 | |
| 17 May | Heavy rain at times | 26° /16° | 10.1 mm | 6 | |
| 18 May | Heavy rain at times | 28° /15° | 2.3 mm | 6 | |
| 19 May | Patchy rain possible | 27° /16° | 5.4 mm | 6 | |
| 20 May | Overcast | 26° /15° | 9.3 mm | 6 | |
| 21 May | Moderate rain at times | 28° /15° | 5.1 mm | 6 | |
| 22 May | Moderate or heavy rain shower | 27° /16° | 3.9 mm | 6 | |
| 23 May | Patchy rain possible | 28° /15° | 2.7 mm | 6 | |
| 24 May | Moderate or heavy rain shower | 28° /15° | 7.9 mm | 6 | |
| 25 May | Moderate or heavy rain shower | 27° /16° | 5.2 mm | 6 | |
| 26 May | Moderate or heavy rain shower | 26° /15° | 5.8 mm | 6 | |
| 27 May | Moderate or heavy rain shower | 26° /15° | 6.4 mm | 6 | |
| 28 May | Moderate or heavy rain shower | 27° /14° | 8.6 mm | 6 | |
| 29 May | Moderate or heavy rain shower | 25° /16° | 11.9 mm | 6 | |
| 30 May | Moderate or heavy rain shower | 24° /14° | 34.3 mm | 6 | |
| 31 May | Moderate or heavy rain shower | 23° /15° | 31 mm | 5 | |
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Important Notice
Our weather forecast for San José in May 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 May - FAQ
What are the expected maximum and minimum temperatures in San José during May?
During May, expect a variety of temperatures with highs around 27° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in San José during May?
Significant rainfall exceeding 490.5 mm is expected in San José during May, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San José during May?
The average wind speed in San José during May is 6 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to San José in May?
As you prepare for your trip to San José in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in San José, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
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