San José in June

In June, San José averages 26°C (79°F) during the day and 17°C (63°F) at night, with frequent rain — about 22 days of the month see precipitation (248 mm total).

High season

Conditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.

June offers comfortable temperatures in San José, with some rain to plan around.

26°C
Avg high
17°C
Avg low
22
Rain days
248 mm
Rainfall

How June compares to the rest of the year in San José

4th
warmest month of the 12
4th
wettest month of the 12
14%
of yearly rainfall falls in June
12 h 42 min
daylight on the 15th

June is in the middle of the year for warmth in San José (4th of 12) and moderately rainy compared to the rest of the year (4th of 12). Daytime temperature runs 1°C above the annual average (25°C). June runs roughly the same as May (26°C) and cools 1°C in July (25°C).

June sunrise & sunset in San José

🌅
Sunrise (15th)
5:15 AM
🌇
Sunset (15th)
5:57 PM
Day length
12 h 42 min

Times shown for San José local time (America/Costa_Rica), calculated for the 15th of June. They shift by a few minutes day to day across the month.

Photography light in San José — June

Golden-hour and blue-hour windows for the 15th of June, in San José's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
4:15 AM – 4:55 AM
🌄 Golden hour (AM)
4:55 AM – 5:55 AM
🌇 Golden hour (PM)
5:17 PM – 6:17 PM
🌆 Blue hour (PM)
6:17 PM – 6:57 PM
Milky Way galactic core
Good
Galactic core is up but lower on the horizon; head well outside city limits for a clean view.

📅 When to book — San José in June

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on June's tier (High season) and San José's popularity.

✈ Flights — lead time
2-3 months
Prices are above off-season but not the absolute peak. Tuesday/Wednesday departures are usually cheaper than weekend ones.
🏨 Lodging — lead time
2-3 months
Wide selection still available at this lead time. Premium properties book first; consider 'last-minute deal' availability at 2-week mark if your dates are flexible.

Crowds & pricing — June in San José

High season

This is a busy month in San José — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.

Why this tier: comfortable tourism weather

Sun & mosquito risk — June in San José

☀️ UV Index (noon, 15th)
12.5
Extreme
Stay indoors during midday hours; SPF 50+ even briefly outside, UPF clothing, wide-brim hat, sunglasses essential.
🦟 Mosquito risk
●●●●●
Severe
Severe mosquito season with active disease transmission risk. DEET 30%+, picaridin 20%, long sleeves day and night, treated nets, and check CDC/WHO travel advisories before going.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

📊 Right now vs typical — San José in June

Actual avg (last 30 days)
24.9°C
77°F
Typical June avg high
26°C
79°F · 30-yr baseline
Anomaly
▼ -1.1°C
cooler

The past 30 days in San José have been running 1.1°C cooler than the typical June average.

Comparison window 2026-05-20 → 2026-06-19 (19 days of observed data). Single-month windows are noisy — strong signals here flag a real anomaly; small ones (<1°C) are within typical year-to-year variation.

San José in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 24°C / 75°F 15°C / 59°F 6 mm 1
February 25°C / 77°F 15°C / 59°F 8 mm 1
March 26°C / 79°F 16°C / 61°F 18 mm 2
April 27°C / 81°F 17°C / 63°F 65 mm 7
May 26°C / 79°F 17°C / 63°F 226 mm 19
June 26°C / 79°F 17°C / 63°F 248 mm 22
July 25°C / 77°F 17°C / 63°F 211 mm 21
August 26°C / 79°F 17°C / 63°F 241 mm 23
September 26°C / 79°F 17°C / 63°F 305 mm 24
October 25°C / 77°F 17°C / 63°F 300 mm 25
November 25°C / 77°F 16°C / 61°F 145 mm 14
December 24°C / 75°F 15°C / 59°F 41 mm 4

Other cities with similar June weather

🌍 See the full ranked list of climate twins for San José in June →

Frequently asked questions

How hot is San José in June?

In June, San José averages a high of 26°C (79°F) and a low of 17°C (63°F) — generally warm.

Does it rain a lot in San José in June?

June is quite rainy in San José, with about 22 rainy days on average.

Is June a good time to visit San José?

June is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for San José in June?

Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full June packing list for San José for a complete, climate-based checklist.

Open San José on the interactive map

Check the live 10-day forecast and sunrise/sunset.