San José climate

San José Weather in July

NASA POWER reanalysis for the half-degree grid cell around San José, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 28°C on July 1 to 28°C on July 31, and lows from 20°C to 20°C. Normal precipitation for the month is 149 mm over about 23 wet days.

July day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at San José, in °C, with the record for each date.1520253035151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

July at a glance

Average high
28°C
Average low
20°C
Precipitation
149 mm
Reanalysis high
35°CJul 27, 1994
Reanalysis low
17°CJul 21, 2005
Daylight
13 h 00 min to 12 h 47 min
Cloud cover
73%
Humidity
85%
Dew point
20°C
Wind
5.8 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Jul 128°C20°C33°C 199418°C 199975%
Jul 228°C20°C33°C 199418°C 200074%
Jul 328°C20°C34°C 199419°C 200074%
Jul 428°C20°C33°C 199518°C 199274%
Jul 528°C20°C34°C 199519°C 199375%
Jul 628°C20°C32°C 199618°C 199975%
Jul 728°C20°C33°C 199418°C 199175%
Jul 828°C20°C33°C 199618°C 199375%
Jul 928°C20°C31°C 199419°C 200474%
Jul 1028°C20°C33°C 199419°C 200374%
Jul 1128°C20°C32°C 199419°C 199275%
Jul 1228°C20°C33°C 199418°C 200976%
Jul 1328°C20°C31°C 199518°C 199375%
Jul 1428°C20°C32°C 199418°C 200074%
Jul 1528°C20°C31°C 199518°C 201174%
Jul 1628°C20°C32°C 199519°C 199274%
Jul 1728°C20°C30°C 201519°C 200873%
Jul 1828°C20°C31°C 199419°C 199473%
Jul 1928°C20°C30°C 201918°C 200772%
Jul 2028°C20°C32°C 199418°C 201071%
Jul 2128°C20°C33°C 199417°C 200571%
Jul 2228°C20°C32°C 199418°C 201071%
Jul 2328°C20°C31°C 199418°C 199172%
Jul 2428°C20°C31°C 201817°C 200871%
Jul 2528°C20°C32°C 199419°C 199270%
Jul 2628°C20°C33°C 199419°C 199270%
Jul 2728°C20°C35°C 199419°C 200070%
Jul 2828°C20°C34°C 199419°C 199270%
Jul 2928°C20°C31°C 199519°C 201270%
Jul 3028°C20°C32°C 199419°C 200070%
Jul 3128°C20°C30°C 201519°C 200070%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at San José, in percent.0204060801102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

July 1
sunrise 5:29 AM, sunset 6:29 PM
July 31
sunrise 5:38 AM, sunset 6:25 PM

Every day of July: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.