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San José, Costa Rica

9.9328, -84.0796  ·  updated 05 Sep 2026, 04:13 UTC  ·  composite signal 50.6/100
50.6Composite /100
HIGHTsunami Risk
38Air Quality
23kmNearest Volcano
0Wildfire Hotspots
8.8UV Index
0.0Kp Index
1Quakes 7d
Seismic activity map for San José, Costa Rica

7-day weather outlook — conditions across the region

7-day weather forecast map for San José, Costa Rica

7-day forecast — temperature, precipitation & wind

7-day wind & rain chance

Global baseline

Signal — Current Conditions

22.0°C

Overcast · feels 24.0°C · humidity 77%

Signal — Wind

5.8 km/h

Gusts to 14.4 km/h · direction 95°

Signal — Pressure & Sun

1014 hPa

Sunrise 05:27 · Sunset 17:43

Signal — Sky & Visibility

95% cloud

Visibility 17.2 km · dew point 17.9°C

Signal — Earthquake

98.3 / 100

1761 events considered (30yr, 300km radius)

Nearest M5.5+: 7 km ESE of Atenas, Costa Rica (25.7 km, M5.9)

Signal — Flood / Terrain

3 / 100

Elevation 1167 m · slope 1.5°

Signal — Economic Impact

$1,400 / yr expected

Based on country average estimate property value ($194,400)

Signal — Wildfire (24h)

0 hotspots

None detected within ~55km

Signal — Air Quality

38 AQI

Dominant pollutant: pm25 · San Cristobal, Medellín, Colombia

Signal — UV Index

8.8 (Very High)

Today's peak UV, Open-Meteo

Signal — Tsunami Risk

HIGH

Based on largest nearby earthquake magnitude (30yr history)

Signal — Nearest Volcano

23 km

Barva (Complex) · last erupted -6050

8,018 people live within 10km of Barva · 3,399,329 within 100km
Tectonic setting: Subduction zone / Continental crust (> 25 km)

One of three massive volcanoes close to the capital city of San José, Volcán Barva (Barba) is a complex volcano with multiple peaks and flank vents. Three peaks visible from the Central Valley give it the common local name of Las Tres Marías. The voluminous andesitic-to-dacitic Tiribí Tuff, exposed in the Central Valley, was erupted about 322,000 years ago. The summit area is dominated by a 2 x 3 …

Full Smithsonian GVP profile →

Nearest other major location: Alajuela, Costa Rica (17 km)

Next 24 hours — hourly detail

Next 24 hours — pressure & humidity

Seismic activity analysis (30-day, 500km)

30-Day Event Count

6

0.2/day · Below normal activity (z=-2.83)

Last 7 Days

1 events

17% of this month's activity happened this week

Largest Event

M4.9

Avg M4.35 · min M3.6 · σ 0.5

Energy Released

790 t TNT

Cumulative seismic energy, 30 days (Gutenberg-Richter)

Depth Profile

19.2 km avg

0.0% shallow (<10km) · range 10–40.3 km

Underwriting Signal

40.8/100

Recommended tier: Basic

95% Confidence Range

1.2–10.8

Statistically expected event count for this window

Projected: 73.0 events/yr · 0.1% chance of M5+ within 1 year · 0.0% chance of M6+ within 5 years · 0.0% chance of M7+ within 10 years

Same statistical model as your Risk Evidence Report (USGS FDSN, 30-day/500km window)

Recent significant earthquakes (30yr, 300km)
M7.6 — 11 km ENE of Hojancha, Costa Rica 136 km, 35 km deep
M6.9 — 42 km S of Quepos, Costa Rica 99 km, 20 km deep
M6.6 — 22 km ESE of Punta de Burica, Panama 269 km, 20 km deep
M6.6 — 15 km N of Belén, Nicaragua 273 km, 135 km deep
M6.6 — 32 km W of San Juan del Sur, Nicaragua 271 km, 27 km deep
M6.5 — 18 km W of Parrita, Costa Rica 64 km, 19.4 km deep

USGS FDSN

Space weather (planetary signal)

Signal — Solar Wind

355 km/s (Calm)

Magnetic field: 5.1 nT (Unsettled)

Signal — Geomagnetic (Kp)

0.0 / 9

Quiet — planetary K-index

Signal — Solar Flare

B4.1

Current GOES X-ray flux class

Solar wind speed and magnetic field strength indicate current space weather activity. Elevated or storm-level readings can disrupt satellites, GPS accuracy, and power grids. This is a planetary-scale signal, not specific to this location — typical quiet conditions run under 400 km/s wind speed and under 5 nT magnetic field.

Source: NOAA SWPC (planetary signal, same for every location)

Sources: USGS (earthquakes), Open-Elevation (terrain), Open-Meteo (weather). Illustrative estimate, not a certified engineering or actuarial assessment.

Active regional alerts (GDACS, within 750km)
Green flood alert in Costa Rica 74 km away

Global Disaster Alert and Coordination System (GDACS)

No country-specific deep dive built yet for Costa Rica. Global baseline data above still reflects real, live USGS and elevation data for this exact coordinate.

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