Point Forecast: San Juan PR  18.41N 66.08W (Elev. 16 ft)	Last Update: 4:59 am AST Jun 12, 2026

[hide menu]

Weather Elements Weather/Precipitation Fire Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Dispersion Index Davis Stability Index Low Visibility Occurrence Risk Index

48-Hour Period Starting: 10am Fri, Jun 12 202611am Fri, Jun 12 202612pm Fri, Jun 12 20261pm Fri, Jun 12 20262pm Fri, Jun 12 20263pm Fri, Jun 12 20264pm Fri, Jun 12 20265pm Fri, Jun 12 20266pm Fri, Jun 12 20267pm Fri, Jun 12 20268pm Fri, Jun 12 20269pm Fri, Jun 12 202610pm Fri, Jun 12 202611pm Fri, Jun 12 202612am Sat, Jun 13 20261am Sat, Jun 13 20262am Sat, Jun 13 20263am Sat, Jun 13 20264am Sat, Jun 13 20265am Sat, Jun 13 20266am Sat, Jun 13 20267am Sat, Jun 13 20268am Sat, Jun 13 20269am Sat, Jun 13 202610am Sat, Jun 13 202611am Sat, Jun 13 202612pm Sat, Jun 13 20261pm Sat, Jun 13 20262pm Sat, Jun 13 20263pm Sat, Jun 13 20264pm Sat, Jun 13 20265pm Sat, Jun 13 20266pm Sat, Jun 13 20267pm Sat, Jun 13 20268pm Sat, Jun 13 20269pm Sat, Jun 13 202610pm Sat, Jun 13 202611pm Sat, Jun 13 202612am Sun, Jun 14 20261am Sun, Jun 14 20262am Sun, Jun 14 20263am Sun, Jun 14 20264am Sun, Jun 14 20265am Sun, Jun 14 20266am Sun, Jun 14 20267am Sun, Jun 14 20268am Sun, Jun 14 20269am Sun, Jun 14 202610am Sun, Jun 14 202611am Sun, Jun 14 202612pm Sun, Jun 14 20261pm Sun, Jun 14 20262pm Sun, Jun 14 20263pm Sun, Jun 14 20264pm Sun, Jun 14 20265pm Sun, Jun 14 20266pm Sun, Jun 14 20267pm Sun, Jun 14 20268pm Sun, Jun 14 20269pm Sun, Jun 14 202610pm Sun, Jun 14 202611pm Sun, Jun 14 202612am Mon, Jun 15 20261am Mon, Jun 15 20262am Mon, Jun 15 20263am Mon, Jun 15 20264am Mon, Jun 15 20265am Mon, Jun 15 20266am Mon, Jun 15 20267am Mon, Jun 15 20268am Mon, Jun 15 20269am Mon, Jun 15 202610am Mon, Jun 15 202611am Mon, Jun 15 202612pm Mon, Jun 15 20261pm Mon, Jun 15 20262pm Mon, Jun 15 20263pm Mon, Jun 15 20264pm Mon, Jun 15 20265pm Mon, Jun 15 20266pm Mon, Jun 15 20267pm Mon, Jun 15 20268pm Mon, Jun 15 20269pm Mon, Jun 15 202610pm Mon, Jun 15 202611pm Mon, Jun 15 202612am Tue, Jun 16 20261am Tue, Jun 16 20262am Tue, Jun 16 20263am Tue, Jun 16 20264am Tue, Jun 16 20265am Tue, Jun 16 20266am Tue, Jun 16 20267am Tue, Jun 16 20268am Tue, Jun 16 20269am Tue, Jun 16 202610am Tue, Jun 16 202611am Tue, Jun 16 202612pm Tue, Jun 16 20261pm Tue, Jun 16 20262pm Tue, Jun 16 20263pm Tue, Jun 16 20264pm Tue, Jun 16 20265pm Tue, Jun 16 20266pm Tue, Jun 16 20267pm Tue, Jun 16 20268pm Tue, Jun 16 20269pm Tue, Jun 16 2026

Date	06/12														06/13
Hour (AST)	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09
Temperature (°F)	88	89	89	90	90	90	89	87	85	83	82	81	81	80	79	79	78	78	78	80	82	84	86	87
Dewpoint (°F)	75	75	75	75	75	75	74	74	73	74	74	74	74	74	74	74	74	74	74	74	74	74	74	74
Heat Index (°F)	97	99	100	101	101	99	98	95	92	90	88	87	86	84	83	79	78	78	78	84	88	91	94	96
Surface Wind (mph)	11	14	15	17	17	17	15	14	13	10	9	9	8	8	8	9	9	9	9	9	10	11	13	14
Wind Dir	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE
Gust			20	22	23	22	20
Sky Cover (%)	40	40	28	28	28	40	40	40	50	50	50	30	30	30	19	19	19	26	26	26	26	26	26	26
Precipitation Potential (%)	20	20	8	8	8	20	20	20	30	30	30	10	10	10	4	4	4	6	6	6	6	6	6	6
Relative Humidity (%)	67	64	63	62	62	61	62	64	69	73	76	78	80	82	83	84	86	87	86	81	76	72	68	65
Rain	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date															06/14
Hour (AST)	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09
Temperature (°F)	89	90	90	91	91	90	90	88	85	84	83	82	81	80	79	79	78	78	78	80	81	83	85	86
Dewpoint (°F)	74	74	74	74	74	74	73	73	73	73	74	73	73	73	73	73	73	73	73	73	73	73	73	73
Heat Index (°F)	97	99	100	101	101	100	98	95	92	90	89	87	86	84	83	82	78	78	78	84	86	89	91	93
Surface Wind (mph)	15	16	17	18	20	18	16	15	14	13	11	10	10	9	9	9	8	8	8	8	9	10	11	14
Wind Dir	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
Gust	20	21	23	24		23	21
Sky Cover (%)	26	26	28	28	28	40	40	40	0	0	0	0	0	0	30	30	30	30	30	30	27	27	27	27
Precipitation Potential (%)	6	6	8	8	8	20	20	20	0	0	0	0	0	0	10	10	10	10	10	10	7	7	7	7
Relative Humidity (%)	62	60	59	58	58	58	59	62	67	71	74	76	78	80	81	83	84	85	85	80	76	71	68	66
Rain	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Marine Weather Hydrology Climate Data Caribbean Weather Tropics NCDC Local Satellite Graphical