Say weather in October

In October, Say sees average daytime highs of 37°C and overnight lows near 25°C, with 12 mm of rain across 3.1 wet days and about 11.7 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 36°C in the first days to 37°C by the end. The sky is clear or mostly clear about 58% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of October to 11 h 30 min by month's end. Set against the rest of the year, October is Say's 5th-clearest and 11th-windiest month. For the whole year in context, see Say's year-round climate.

Daytime high
37°
4th warmest
Overnight low
25°
8th coldest
Rainfall
12 mm
3.1 wet days
Daylight
11 h 42 min
6:44 AM – 6:27 PM
Cloud cover
40%
5th clearest
Wind
9 km/h
11th windiest
Solar energy
6.17 kWh/m²
Travel score
2.0
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 36°C in the first days to 37°C by the end.

A typical October day in Say reaches about 37°C in the afternoon and slips back to 25°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 39°C. Set against its neighbours, October runs about 3°C warmer than September and on par with November.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13625
23625
33625
43625
53625
63625
73625
83625
93625
103625
113725
123725
133725
143725
153725
163725
173725
183725
193725
203725
213725
223724
233724
243724
253724
263724
273724
283723
293723
303723
313723

How October really feels in Say

Once humidity and wind are folded in, October averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
17 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Say weather by month

How October compares with the rest of the year at a glance. October is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 17°0011.35.6
Feb35° / 20°00.111.63.5
Mar39° / 24°20.411.91.0
Apr41° / 27°3112.30.0
May40° / 29°123.212.60.3
Jun37° / 27°306.812.81.9
Jul33° / 25°7813.212.73.1
Aug32° / 24°15217.612.43.4
Sep33° / 25°609.312.13.3
Oct37° / 25°123.111.72.0
Nov36° / 20°0011.42.6
Dec33° / 18°0011.24.8

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 26%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37426
47327
57327
67327
77327
87228
97228
107228
117228
127129
137228
147228
157228
167426
177426
187426
197426
207525
217525
227624
237525
247525
257525
267525
277525
287525
297525
307426
317426

Chance of precipitation in October

Any precipitation

Say gets around 12 mm of rain over 3.1 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 17% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
117
216
316
416
516
616
716
816
915
1015
1114
1213
1313
1412
1511
1610
179
189
198
207
216
225
235
244
253
263
272
282
292
302
311

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the oppressive band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 63% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100218773
201320742
301322722
401423702
501525672
601626661
712728611
812829591
913930561
10231030541
11241231501
12341331481
13351532451
14461631420
15571731390
16781831360
17891930330
1810102029300
1912112128270
2015122127250
2118132126220
2221132125200
2324142124180
2427142123150
2530152021130
2634152020110
2738151918100
284215181780
294615171570
304915161450
315415151240

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 54 min at the start of October to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over October. Sunrise moves from 6:43 AM to 6:48 AM, and sunset from 6:36 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:436:36
211.96:436:35
311.96:436:35
411.86:436:34
511.86:436:33
611.86:436:33
711.86:436:32
811.86:436:31
911.86:446:31
1011.86:446:30
1111.86:446:30
1211.76:446:29
1311.76:446:28
1411.76:446:28
1511.76:446:27
1611.76:446:27
1711.76:456:26
1811.76:456:26
1911.76:456:25
2011.76:456:25
2111.66:456:24
2211.66:466:24
2311.66:466:23
2411.66:466:23
2511.66:466:22
2611.66:476:22
2711.66:476:22
2811.66:476:21
2911.66:476:21
3011.56:486:20
3111.56:486:20

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.17 kWh/m².

For context, solar energy here swings from a low near 5.47 kWh/m² to a high of 6.97 kWh/m² in April across the year — October's 6.17 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in October

Hazard calendar for Say

In seasonPeak

In October, Say sits inside its dust season. The full year is below, with each hazard's peak months called out.

Say sees seasonal dust haze (January–July), heaviest in March.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Say?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.0
Sightseeing
8th-best month of the year
5.3
Beach & pool
8th-best month of the year

October is a weaker month for outdoor sightseeing in Say.

What to pack for Say in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Say sees daytime highs around 37°C and nights near 25°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

UV index in Say in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Say peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 18UV 13Dec 13UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr10Extreme
May10Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Say in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Say is worst in February — around 89 µg/m³ PM2.5 (unhealthy), about 6.0× the cleanest month (August, 15 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 1888 µg/m³Aug 1415 µg/m³
PM2.5 (µg/m³)Level
Jan78Unhealthy
Feb89Unhealthy
Mar85Unhealthy
Apr61Unhealthy
May35Moderate
Jun26Moderate
Jul17Moderate
Aug15Moderate
Sep20Moderate
Oct40Poor
Nov61Unhealthy
Dec71Unhealthy
Location & terrain

Where is Say?

Say sits at 13.1°N, 2.4°E, 181 m above sea level, in Niger. The nearest listed city is Kollo, 23 km away.

BaléyaraDiapaga

Topography around Say

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Say.

Within 3 km, the terrain around Say has only modest variations in elevation — a maximum elevation change of 48 m around an average of 185 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 93 m; within 80 km, only modest variations in elevation — a maximum elevation change of 124 m.

The land around Say is covered by grassland (28%) and cropland (27%) within 3 km, grassland (60%) within 16 km, and grassland (61%) within 80 km.

3 km
48 m
16 km
93 m
80 km
124 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Kollo 23 km · Youri Kourtéré 29 km · Niamey 54 km · Birnin Gaouré 59 km · Torodi 62 km · Dosso 90 km · Baléyara 99 km · Diapaga 130 km

Niger travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / B / C / D / E / F
220 V · 50 Hz
Prices
≈ 36% of US
price level, 2025
GDP per capita
$775
2025
Happiness
4.9 / 10
World Happiness, 2025
Homicide rate
4.4
per 100k, 2012
Road deaths
25.5
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 96%ethnic religionist 4%Christian 0%agnostics and other 0%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Say (13.1007°, 2.3689°, elevation 181 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).