Chilaw climate

Chilaw Weather in July

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

Average highs run from 29°C on July 1 to 29°C on July 31, and lows from 25°C to 25°C. Normal precipitation for the month is 69 mm over about 16 wet days.

July day by day

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

Normal daily high and low temperature at Chilaw, in °C, with the record for each date.22242628303234151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

July at a glance

Average high
29°C
Average low
25°C
Precipitation
69 mm
Reanalysis high
32°CJul 8, 2019
Reanalysis low
24°CJul 11, 2001
Daylight
12 h 33 min to 12 h 27 min
Cloud cover
82%
Humidity
84%
Dew point
24°C
Wind
23.4 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 129°C25°C31°C 200524°C 199456%
Jul 229°C25°C31°C 199624°C 200856%
Jul 329°C25°C30°C 200224°C 199356%
Jul 429°C25°C31°C 201924°C 200958%
Jul 529°C25°C31°C 200224°C 199458%
Jul 629°C25°C31°C 199824°C 199356%
Jul 729°C25°C32°C 201924°C 199555%
Jul 829°C25°C32°C 201924°C 199356%
Jul 929°C25°C31°C 199724°C 199356%
Jul 1029°C25°C31°C 200224°C 199256%
Jul 1129°C25°C31°C 201924°C 200155%
Jul 1229°C25°C32°C 201924°C 200155%
Jul 1329°C25°C31°C 199724°C 199954%
Jul 1429°C25°C31°C 199724°C 200153%
Jul 1529°C25°C31°C 200024°C 200152%
Jul 1629°C25°C31°C 201724°C 199152%
Jul 1729°C25°C31°C 201924°C 199251%
Jul 1829°C25°C31°C 200024°C 199350%
Jul 1929°C25°C31°C 200024°C 199349%
Jul 2029°C25°C31°C 201724°C 199249%
Jul 2129°C25°C32°C 200024°C 199350%
Jul 2229°C25°C31°C 200024°C 199451%
Jul 2329°C25°C31°C 201924°C 200650%
Jul 2429°C25°C31°C 200924°C 199349%
Jul 2529°C25°C32°C 201724°C 199348%
Jul 2629°C25°C31°C 201724°C 202048%
Jul 2729°C25°C31°C 201724°C 200148%
Jul 2829°C25°C31°C 201924°C 200148%
Jul 2929°C25°C31°C 201924°C 200148%
Jul 3029°C25°C31°C 201924°C 200148%
Jul 3129°C25°C31°C 201924°C 200147%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Chilaw, in percent.02040601102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+5:30).

July 1
sunrise 5:58 AM, sunset 6:31 PM
July 31
sunrise 6:04 AM, sunset 6:31 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.