Puerto Rico Climate

The biggest climatic variations in Puerto Rico are between the mountainous areas (represented below by Barranquitas) and the coastal plains. In general, Puerto Rico’s weather is beautiful year-round.

Avg. Temp.(Low/ High), Precip.	January			April			July			October
	°C	°F	mm	°C	°F	mm	°C	°F	mm	°C	°F	mm
Arecibo	23.8	74.8	120.7	24.7	76.5	14.8	26.9	80.4	111.8	26.5	79.7	142.8
Barranquitas	20.2	68.4	83.9	21.7	71.1	105.7	23.7	74.7	99.9	23.2	73.8	216.4
Fajardo	24.3	75.7	94.1	25.6	78.1	106.2	27.7	81.9	147.5	27.0	80.6	215.1
Mayagüez	23.8	74.8	56.7	24.9	76.8	141.5	26.5	79.7	261.3	26.2	79.2	255.9
Ponce	24.4	75.9	25.3	25.6	78.1	54.3	27.7	81.9	67.2	26.9	80.4	150.8
San Juan	25.0	77.0	75.3	26.3	79.3	94.9	28.1	82.6	145	27.7	81.9	139.9

Measurements

Puerto Rico generally uses the metric system. The basic unit of length is the meter (m), which is divided into 100 centimeters (cm), or 1000 millimeters (mm). One thousand meters make up one kilometer (km). Fluids are measured in liters (L), each divided into 1000 milliliters (mL). A liter of pure water weighs one kilogram (kg), divided into 1000 grams (g), while 1000kg make up one metric ton.

1 In. = 25.4mm	1mm = 0.039 In.
1 ft.= 0.30m	1m = 3.28 ft.
1 yd. = 0.914m	1m = 1.09 yd.
1 mi. = 1.609km	1km = 0.62 mi.
1 oz. = 28.35g	1g = 0.035 oz.
1 lb. = 0.454kg	1kg = 2.205 lbs.
1 fl. oz. = 29.57ml	1ml = 0.034 fl. oz.
1 gal. = 3.785L	1L = 0.264 gal.