Detailed local forecast

48-Hour Forecast for San Juan, Puerto Rico

Hourly temperature, rain, wind, humidity, UV index, visibility, and atmospheric conditions for the next 48 hours.

Last updated Sep 4, 9:05 AM -04:00

Temperature Range 80°F – 93°F Next 48 hours

Feels Like 80°F – 106°F Apparent range

Precipitation 50% 0.01 in total

Humidity 77% 48-hour average

Pressure 30.00 inHg Current

Wind 5.8 mph E Gusts to 16.4 mph

Dew Point 77°F Current

Visibility 6.2 mi Current

Cloud Cover 37% Current

UV Index 11.5 very high 48-hour peak

Sunrise 6:10 AM Local time

Sunset 6:36 PM AST UTC-04:00

Local time in San Juan

48-Hour Hourly Forecast

Scroll horizontally to compare every hour

Forecast	Today — Fri, Sep 4															Tomorrow — Sat, Sep 5																								Sunday — Sun, Sep 6
Time	Now	10 AM	11 AM	12 PM	1 PM	2 PM	3 PM	4 PM	5 PM	6 PM	7 PM	8 PM	9 PM	10 PM	11 PM	12 AM	1 AM	2 AM	3 AM	4 AM	5 AM	6 AM	7 AM	8 AM	9 AM	10 AM	11 AM	12 PM	1 PM	2 PM	3 PM	4 PM	5 PM	6 PM	7 PM	8 PM	9 PM	10 PM	11 PM	12 AM	1 AM	2 AM	3 AM	4 AM	5 AM	6 AM	7 AM	8 AM
Weather
Temperature °F	86	86	87	89	90	90	91	91	89	87	85	85	84	83	83	82	82	81	80	80	80	80	83	87	89	90	91	93	93	92	92	91	89	87	85	85	84	83	82	82	82	80	80	80	80	80	81	83
Feels Like °F	97	97	98	101	102	103	104	103	102	100	96	97	95	92	92	91	91	88	86	85	80	80	93	100	102	103	104	106	106	105	105	104	102	100	97	98	95	92	91	91	91	86	85	80	80	80	86	90
Precip %	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	7%	13%	0%	0%	0%	0%	0%	0%	6%	35%	32%	32%	27%	22%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	31%	14%	50%	30%	18%	11%	6%
Rain in	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.01	0.00	0.00	0.00	0.00
Wind mph	5.4	7	10.8	13.1	14.8	16.7	17.3	16.4	16	13.7	11.3	10.1	9.2	7.9	6.7	6.4	6.6	6.2	5.5	5.5	5.4	5.1	5.1	6.7	8.1	9.8	12.9	15.4	16.3	16.6	16.5	15.7	14.4	12.2	10	8.8	8.6	8	7.3	6.3	6.5	6.1	5.2	5.7	5.9	5.7	4.7	6.2
Gust mph	8.5	10	11.7	13.2	14.4	15.8	16	15.2	14.9	14.4	14.3	13.3	12.2	10.8	10	9.1	9.6	9	7.7	7.5	8	7.5	7.7	10.5	11.7	12.8	14	15.7	16.4	16.4	16.2	15.4	14	13.4	13.3	12.4	12.8	12.3	11.2	9.6	9.1	10.2	8	8.5	8.9	9	8.3	10.3
Wind Direction	ESE	E	ENE	E	E	E	E	E	E	E	ESE	ESE	ESE	ESE	ESE	SE	SE	SE	SE	SE	SE	SE	SE	ESE	ESE	E	E	E	E	E	E	E	E	ESE	ESE	ESE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SSE	SE
Humidity %	75	74	71	66	63	63	62	63	68	73	78	79	80	82	84	85	86	86	87	87	87	88	86	79	72	65	63	63	63	63	63	65	68	73	77	80	82	83	84	85	86	87	87	87	87	86	83	76
Pressure inHg	30.00	30.00	30.00	29.97	29.94	29.94	29.91	29.88	29.91	29.91	29.94	29.94	29.97	29.97	29.97	29.97	29.94	29.91	29.91	29.91	29.91	29.91	29.94	29.94	29.94	29.94	29.94	29.94	29.91	29.88	29.85	29.85	29.88	29.88	29.91	29.94	29.94	29.94	29.94	29.94	29.91	29.91	29.91	29.91	29.91	29.91	29.94	29.94
Dew Point °F	77	77	77	76	76	73	74	74	75	76	76	75	75	75	75	75	75	75	75	75	75	75	75	75	75	74	74	74	74	74	74	75	75	75	75	75	76	75	75	75	75	75	75	75	75	75	74	74
Cloud Cover %	37	39	47	59	71	84	51	63	70	64	58	62	85	77	75	77	64	57	100	76	83	79	83	79	98	96	98	99	99	99	80	76	83	88	90	92	83	91	88	85	87	87	67	62	44	57	64	60
Visibility mi	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2
UV Index	3.8	6.9	9.5	11.3	11.5	9.5	6.4	3.3	1.1	0.2	0	0	0	0	0	0	0	0	0	0	0	0	0.3	1.3	3.5	6.3	8.5	9.6	10.3	6.5	3.5	2.3	1	0.2	0	0	0	0	0	0	0	0	0	0	0	0	0.2	1.1

Best Time Outdoors

Sun, 6 AM

80°F · Rain 18% · Wind 5.7 mph

Rain Window

Sat, 4 AM – 6 AM

Peak chance 35% · 0.00 in

Strongest Winds

Fri, 3 PM

Sustained 17.3 mph · Gust 16 mph · E

Overnight Low

Sat, 6 AM

Low 80°F · Feels like 80°F

Weather Forecast for San Juan, Puerto Rico

The next 48 hours in San Juan, Puerto Rico currently range from 80°F to 93°F. Rain chances peak at 50%, with 0.01 in of precipitation forecast. The strongest expected wind is 17.3 mph.

What is the weather forecast for San Juan for the next 48 hours?

The next 48 hours in San Juan, Puerto Rico currently range from 80°F to 93°F. Rain chances peak at 50%, with 0.01 in of precipitation forecast. The strongest expected wind is 17.3 mph.

Will it rain in San Juan during the next 48 hours?

Rain is possible, with a peak hourly chance of 50% and 0.01 in currently forecast.

What will be the highest temperature in San Juan?

The highest hourly temperature currently forecast is 93°F.

When will winds be strongest in San Juan?

Sustained 17.3 mph · Gust 16 mph · E

Current Conditions

86°F Clouds Feels like 97°F

Humidity: 75%
Wind: 5.8 mph E
UV Index: 3.8 moderate

Location Details

San Juan, Puerto Rico

Latitude: 18.4655° N
Longitude: 66.1057° W
Timezone: AST (UTC-04:00)
Units: Imperial

Air Quality

10 Good

Primary pollutant: PM2.5
Concentration: 1.9 µg/m³
OpenWeather AQI: 1 / 5

Weather Alerts

Weather alertSep 4, 10:00 AM – Sep 4, 5:00 PM

View alerts on the weather dashboard