Say climate

Say Weather in September

1991-2020 means of the daily record at Niamey Aero (GHCN NG000001052), 48 km from Say

Average highs run from 33°C on September 1 to on September 30, and lows from 24°C to 26°C. Normal precipitation for the month is 96 mm over about 21 wet days.

September day by day

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

Normal daily high and low temperature at Say, in °C, with the record for each date.15202530354045151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
35°C
Precipitation
96 mm
Record high
42°CSep 22, 2013
Record low
18°CSep 28, 1996
Daylight
12 h 22 min to 12 h 01 min
Cloud cover
54%
Humidity
76%
Dew point
22°C
Wind
8.3 km/h

Every day of the month

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

DateNormal highNormal lowRecord highRecord lowChance wet
Sep 133°C24°C39°C 202119°C 197488%
Sep 233°C39°C 200019°C 195587%
Sep 334°C24°C39°C 200020°C 196286%
Sep 434°C24°C39°C 199020°C 195084%
Sep 533°C38°C 198319°C 196084%
Sep 634°C38°C 201120°C 196782%
Sep 734°C41°C 200320°C 195382%
Sep 834°C39°C 198720°C 195581%
Sep 934°C24°C39°C 194120°C 194380%
Sep 1035°C25°C38°C 194120°C 200779%
Sep 1135°C25°C39°C 194420°C 198677%
Sep 1235°C39°C 194020°C 196476%
Sep 1335°C39°C 199720°C 194774%
Sep 1438°C 199120°C 195872%
Sep 1535°C40°C 199120°C 197370%
Sep 1635°C41°C 198420°C 201068%
Sep 1734°C25°C41°C 198719°C 196766%
Sep 1825°C40°C 200519°C 198964%
Sep 1935°C40°C 194120°C 197863%
Sep 2035°C25°C40°C 198020°C 194360%
Sep 2136°C25°C39°C 198020°C 196757%
Sep 2236°C25°C42°C 201320°C 194754%
Sep 2336°C26°C41°C 194120°C 195851%
Sep 2436°C25°C41°C 194120°C 200149%
Sep 2537°C40°C 194421°C 198846%
Sep 2637°C25°C41°C 194220°C 195045%
Sep 2725°C42°C 202320°C 195744%
Sep 2837°C25°C41°C 194218°C 199644%
Sep 2926°C41°C 194120°C 196842%
Sep 3026°C42°C 194122°C 195741%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Say, in percent.0204060801001102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+1).

September 1
sunrise 6:39 AM, sunset 7:01 PM
September 30
sunrise 6:40 AM, sunset 6:41 PM

Every day of September: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station NG000001052, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.