Rosetta climate

Rosetta Weather in September

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

Average highs run from 30°C on September 1 to 28°C on September 30, and lows from 25°C to 23°C. Normal precipitation for the month is 0 mm over about 0 wet days.

September day by day

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

Normal daily high and low temperature at Rosetta, in °C, with the record for each date.2025303540151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

September at a glance

Average high
30°C
Average low
24°C
Precipitation
0 mm
Reanalysis high
37°CSep 16, 2002
Reanalysis low
20°CSep 24, 1997
Daylight
12 h 48 min to 11 h 54 min
Cloud cover
22%
Humidity
66%
Dew point
19°C
Wind
16.6 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
Sep 130°C25°C33°C 200223°C 19950%
Sep 230°C25°C33°C 200323°C 19910%
Sep 330°C25°C32°C 201422°C 19910%
Sep 430°C25°C33°C 201423°C 19970%
Sep 530°C24°C35°C 199623°C 19910%
Sep 630°C24°C32°C 201023°C 19950%
Sep 730°C24°C32°C 201522°C 20030%
Sep 830°C24°C33°C 201522°C 20030%
Sep 930°C24°C33°C 201622°C 20030%
Sep 1030°C24°C34°C 201622°C 19960%
Sep 1130°C24°C33°C 200322°C 19960%
Sep 1230°C24°C34°C 201723°C 19920%
Sep 1330°C24°C33°C 201322°C 19910%
Sep 1430°C24°C32°C 200221°C 19910%
Sep 1530°C24°C35°C 200221°C 20040%
Sep 1630°C24°C37°C 200221°C 20040%
Sep 1729°C24°C34°C 199322°C 20040%
Sep 1829°C24°C33°C 202022°C 20040%
Sep 1929°C24°C33°C 201322°C 20040%
Sep 2029°C24°C35°C 199622°C 19920%
Sep 2129°C24°C34°C 200522°C 19920%
Sep 2229°C24°C35°C 201522°C 19920%
Sep 2329°C24°C32°C 201521°C 19921%
Sep 2429°C24°C35°C 199620°C 19971%
Sep 2529°C24°C34°C 200821°C 19971%
Sep 2629°C23°C33°C 201021°C 19971%
Sep 2729°C23°C34°C 201022°C 20071%
Sep 2829°C23°C34°C 200621°C 19971%
Sep 2929°C23°C35°C 200621°C 19921%
Sep 3028°C23°C34°C 201021°C 19972%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Rosetta, in percent.00.511.521102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+3).

September 1
sunrise 6:34 AM, sunset 7:22 PM
September 30
sunrise 6:51 AM, sunset 6:45 PM

Every day of September: 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.