Is San Marcos safe? Costa Rica travel risk
Is San Marcos safe right now? Checked 16 October 2026
San Marcos scores 51/100 on our travel risk index (Elevated). The US State Department rates Costa Rica Level 2 (Exercise Increased Caution, updated 2 Apr 2026); the UK has no advice against travel; Canada says: exercise a high degree of caution. No GDACS or USGS hazard events within 100 km in the last 14 days. CDC travel health notice: Level 2, Chikungunya in Costa Rica (30 Jul 2026). No change in government advice in the last 7 days.
San Marcos scores 51/100 (Elevated). The score combines security, crime and scams, health and medical access, natural hazards and current alerts measured for this location and Costa Rica (how it is calculated). The sections below are specific to San Marcos: nearest emergency and transport facilities, local climate normals, 5-year natural hazard history within 100 km.
Driven by: crime and scams (71/100) and natural hazards (69/100).
A score of 51 is higher than the scores of 69% of the 241 countries we cover.
Consult the Costa Rica travel risk page for nationwide security advisories, entry protocols, and consular warnings.
Territorial & Position Context
San Marcos belongs to Alajuela (Costa Rica), centered at coordinates 10.6204° N, 84.5120° W. Distance to San José is 89.9 km towards the SSE.
Alajuela
10.6204° N, 84.5120° W
Lowland
UTC
163,745
Critical Services & Regional Transit
Adjacent Localities in Costa Rica
Climate by Month
Hottest: May (29 °C avg high); Wettest: July (339 mm).
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 26° | 27° | 28° | 28° | 29° | 28° | 27° | 27° | 28° | 27° | 26° | 25° |
| Low °C | 20° | 20° | 20° | 21° | 22° | 22° | 22° | 22° | 22° | 21° | 21° | 21° |
| Rain mm | 183 | 109 | 73 | 96 | 222 | 306 | 339 | 325 | 306 | 320 | 303 | 296 |
Normals: San Marcos (0 km away).
Natural Hazard Calendar & History
5-Year Hazard Calendar (100 km Radius)
| Hazard | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Floods | 1 | — | — | — | — | 2 | 2 | 1 | 3 | 3 | 2 | 1 |
| Volcanoes | — | — | 1 | — | — | — | — | — | — | — | — | — |
| Earthquakes (M5.5+) | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Most flood events within 100 km of San Marcos happened in September and October (6 of 15 in five years).
Source: GDACS, USGS; five years to October 2026.
Significant Earthquakes (USGS M5.5+ within 150 km)
2 major seismic events recorded within 150 km over the past 5 years.
- Largest: M5.5 on 17 Apr 2024 (106 km away) — USGS details
CDC Traveler Health Notices for Costa Rica
- Level 1 - Hepatitis A in Costa Rica (Level 1, 18 Sep 2026)
- Level 2 - Chikungunya in Costa Rica (Level 2, 30 Jul 2026)
Source: U.S. Centers for Disease Control and Prevention (Public Domain).
For consular advice on women's safety, LGBT+ travel, and local laws, see the Costa Rica travel advice & laws.
Check the official entry requirements for your nationality before you travel. See the Costa Rica entry requirements.
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