Drought in Guanica Municipio, PR: 0.8 years in 10 since 2000

0.8 years in 10

Guanica Municipio, PR: 2 of 26 full years had 13+ weeks in drought. Less drought-prone than most US counties.

20002025

Drought years: 2019 (27 wk) and 2022 (20 wk). Not a single drought week in 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011, 2012, 2013, 2018, 2024 and 2025.

A regular lawn is fine here; plan for the odd dry year

Real droughts are rare here. A smart controller that skips watering after rain covers the odd dry year.

You can keep a regular lawn. Worth doing: a rain-sensing or smart controller, and deeper, less frequent watering if Aug turns dry.

Drought has been more common in 2016-2025 (2 years in 10) than in 2000-2015 (0 in 10).

Against the rest of PR

19th most drought-prone of 78 PR counties; the PR middle is 0.4 in 10. Closest on the list: Guayanilla Municipio (0.8 in 10) and Juncos Municipio (0.8 in 10). Driest in PR: Salinas Municipio (2.7 in 10). Least drought: Mayaguez Municipio (0 in 10).

When in the year it hits

Most often in Aug (14% of weeks), then Jul (13%) and Apr (11%). Least in Nov (4%). May to September averages 10%.

7 Jan
8 Feb
9 Mar
11 Apr
4 May
10 Jun
13 Jul
14 Aug
10 Sep
7 Oct
4 Nov
5 Dec

The worst year: 2019

2019: 27 weeks in drought, peaking at D2 severe. Across 1,401 weekly maps: 8.4% of all weeks at D1 or worse, 2.6% at D2, 0.9% at D3, never any D4. Longest unbroken spell: 23 weeks, May 21, 2019 to Oct 22, 2019.

Lately

Last drought year: 2022, 20 weeks. 2016-2025: 2 in 10, against 0 in 10 for 2000-2015, drier lately. So far in 2026: 21 of 44 weeks in drought, through Nov 3, 2026.