Guaynabo Municipio, Puerto Rico Hurricane History
Since 1852, 39 tropical cyclones have passed within 50 miles of Guaynabo Municipio, Puerto Rico — about one every 4.5 years. Of those, 18 were at hurricane strength at their closest approach. The most recent was Ernesto (2024), which passed 43 miles away on 14 August 2024.
Storm tracks within 50 miles
How strong they get
Key facts
- Most recentErnesto (2024) — 43 mi away, 14 August 2024
- Strongest stormUnnamed Storm (1928) — 140 kt (161 mph) at its strongest within 50 miles
- Closest pass on recordGert (1981) — 2.4 miles
- Closest major hurricane (Cat 3+)Maria (2017) — 11.5 miles
- Passes within 25 miles21 of 39
- Peak monthSeptember — 19 storms (49% of all)
- Most active year1916 — 2 storms
- Most active decade1970s and 2000s — 4 storms
- Major hurricanes (Cat 3+) within 50 mi7
- Record span1852–2024
When storms arrive
| J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 3 | 13 | 19 | 1 | 2 | 1 |
Activity by decade
| 1850s | 1860s | 1870s | 1880s | 1890s | 1900s | 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 2 | 0 | 3 | 1 | 3 | 2 | 3 | 2 | 3 | 0 | 4 | 3 | 2 | 4 | 3 | 2 |
Every tropical or subtropical cyclone within 50 miles
| Storm | Closest approach | Distance | Status | Wind |
|---|---|---|---|---|
| Ernesto (2024) | 14 Aug 2024 | 43.0 mi | TS / TD | 59 kt |
| Laura (2020) | 22 Aug 2020 | 42.3 mi | TS / TD | 45 kt |
| Karen (2019) | 24 Sep 2019 | 49.7 mi | TS / TD | 40 kt |
| Maria (2017) | 20 Sep 2017 | 11.5 mi | Cat 4 | 115 kt |
| Irene (2011) | 22 Aug 2011 | 2.8 mi | Cat 1 | 66 kt |
| Olga (2007) | 11 Dec 2007 | 11.0 mi | TS / TD | 39 kt |
| Jeanne (2004) | 15 Sep 2004 | 17.8 mi | TS / TD | 60 kt |
| Dean (2001) | 22 Aug 2001 | 49.6 mi | TS / TD | 49 kt |
| Debby (2000) | 22 Aug 2000 | 44.6 mi | Cat 1 | 65 kt |
| Georges (1998) | 21 Sep 1998 | 14.1 mi | Cat 2 | 95 kt |
| Marilyn (1995) | 16 Sep 1995 | 47.7 mi | Cat 2 | 95 kt |
| Hugo (1989) | 18 Sep 1989 | 22.9 mi | Cat 3 | 108 kt |
| Klaus (1984) | 7 Nov 1984 | 31.5 mi | TS / TD | 45 kt |
| Gert (1981) | 8 Sep 1981 | 2.4 mi | TS / TD | 48 kt |
| Frederic (1979) | 4 Sep 1979 | 16.9 mi | TS / TD | 45 kt |
| Claudette (1979) | 18 Jul 1979 | 5.7 mi | TS / TD | 30 kt |
| Christine (1973) | 4 Sep 1973 | 37.6 mi | TS / TD | 30 kt |
| Doria (1971) | 24 Aug 1971 | 34.5 mi | TS / TD | 25 kt |
| Betsy (1956) | 12 Aug 1956 | 19.3 mi | Cat 2 | 83 kt |
| Dolly (1953) | 8 Sep 1953 | 18.1 mi | TS / TD | 33 kt |
| Baker (1950) | 23 Aug 1950 | 37.4 mi | TS / TD | 34 kt |
| Unnamed Storm (1949) | 3 Sep 1949 | 38.4 mi | TS / TD | 37 kt |
| Unnamed Storm (1940) | 5 Aug 1940 | 49.9 mi | TS / TD | 40 kt |
| Unnamed Storm (1933) | 26 Jul 1933 | 47.0 mi | Cat 1 | 75 kt |
| Unnamed Storm (1932) | 27 Sep 1932 | 11.5 mi | Cat 3 | 100 kt |
| Unnamed Storm (1931) | 11 Sep 1931 | 12.1 mi | Cat 1 | 72 kt |
| Unnamed Storm (1928) | 13 Sep 1928 | 16.6 mi | Cat 4 | 133 kt |
| Unnamed Storm (1924) | 19 Aug 1924 | 49.4 mi | TS / TD | 40 kt |
| Unnamed Storm (1919) | 3 Sep 1919 | 48.3 mi | TS / TD | 42 kt |
| Unnamed Storm (1916) | 22 Aug 1916 | 18.3 mi | Cat 1 | 78 kt |
| Unnamed Storm (1916) | 13 Jul 1916 | 8.4 mi | TS / TD | 45 kt |
| Unnamed Storm (1901) | 12 Sep 1901 | 8.1 mi | TS / TD | 50 kt |
| Unnamed Storm (1899) | 8 Aug 1899 | 24.4 mi | Cat 4 | 118 kt |
| Unnamed Storm (1896) | 1 Sep 1896 | 43.6 mi | Cat 2 | 85 kt |
| Unnamed Storm (1893) | 17 Aug 1893 | 15.8 mi | Cat 3 | 97 kt |
| Unnamed Storm (1878) | 28 Nov 1878 | 28.6 mi | TS / TD | 60 kt |
| Unnamed Storm (1876) | 13 Sep 1876 | 17.7 mi | Cat 2 | 87 kt |
| Unnamed Storm (1867) | 29 Oct 1867 | 7.0 mi | Cat 2 | 83 kt |
| Unnamed Storm (1852) | 5 Sep 1852 | 39.1 mi | Cat 1 | 67 kt |
Post-tropical and extratropical passes
A further 1 system passed within 50 miles after losing tropical characteristics. These are excluded from the counts above because they were no longer tropical cyclones at their closest approach — but several were highly damaging, so they are listed here.
| Storm | Status | Closest approach | Distance | Wind |
|---|---|---|---|---|
| Noel (2007) | Remnant low | 26 Oct 2007 | 36.1 mi | 25 kt |
How Guaynabo Municipio, Puerto Rico compares
Among the 2,208 U.S. counties and county-equivalents that have recorded at least one tropical cyclone within 50 miles, Guaynabo Municipio, Puerto Rico ranks #351 — more exposed than 84.1% of them. Within Puerto Rico it ranks #36 of 78, against a territory average of 38.4 storms per municipio.
Notable storms
- Cat 5 Unnamed Storm (1928) passed 17 miles away on 13 September 1928 as a hurricane, reaching 140 kt (161 mph) while within 50 miles.
- Cat 4 Maria (2017) passed 11 miles away on 20 September 2017 as a hurricane, reaching 136 kt (157 mph) while within 50 miles.
- Cat 4 Unnamed Storm (1899) passed 24 miles away on 8 August 1899 as a hurricane, reaching 121 kt (139 mph) while within 50 miles.
- Cat 3 Unnamed Storm (1932) passed 11 miles away on 27 September 1932 as a hurricane, reaching 112 kt (129 mph) while within 50 miles.
23 of the 39 storms made a documented landfall somewhere along their track.
How often to expect a storm
A return interval of 4.5 years does not mean storms arrive on a schedule. It is simply 39 storms spread over the 174 years from 1852 to 2025. 2 separate years saw more than one storm pass within 50 miles while stretches of a decade or more have passed with none. The longest recorded quiet stretch was 15 years, between 1852 and 1867. It has been 1 year since the last one; 31 of the 36 gaps in this record were longer than that.
Common questions
How many hurricanes have hit Guaynabo Municipio, Puerto Rico?
18 tropical cyclones have passed within 50 miles of Guaynabo Municipio, Puerto Rico at hurricane strength since 1852. Counting all tropical cyclones — including tropical storms and depressions — the total is 39.
When was the last hurricane in Guaynabo Municipio, Puerto Rico?
Maria (2017), on 20 September 2017, passing 11 miles away — 9 years ago. The most recent tropical cyclone of any strength was Ernesto (2024) in 2024.
What was the strongest storm to affect Guaynabo Municipio, Puerto Rico?
Unnamed Storm (1928), which reached 140 kt (161 mph) while within 50 miles; its closest approach was 17 miles.
How often do hurricanes hit Guaynabo Municipio, Puerto Rico?
On average, one tropical cyclone passes within 50 miles every 4.5 years — 39 storms over the 174 years from 1852 to 2025, the end of the HURDAT2 record. That is a historical average, not a schedule or a forecast.
Nearby municipios
Guaynabo Municipio, Puerto Rico borders or sits close to 4 other municipios with a published storm record. San Juan Municipio, Puerto Rico has 44 on record.