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Climate guideThirty-year normals for Say
Say climate by month
Hot semi-arid · BShBest Jan–Feb · Dec
Annual mean29°day and night
Seasonal swing10°warmest vs coolest
Precipitation519 mm85 wet days a year
13.10° N, 2.37° EElevation 181 mUTC+1 · West Africa Time
When to goSay · weather score
Best timeJan–Feb · Dec
October: high / low37° / 24°
iSummary
What the weather is like
Say has a hot semi-arid climate (Köppen BSh): little rain, large day–night swings and strong sunshine.
The warmest month is April, when afternoons average 41° and nights 26°. January is the coolest month, with highs of 32° and lows of 16°. The difference between the warmest and the coolest month is about 10°.
About 519 mm of precipitation falls in an average year. August is the wettest month (172 mm, 26 wet days) and January the driest (0 mm, 0 wet days). Cloud cover ranges from 12% in January to 39% in August.
Compared with Niamey, the capital, Say is 0.4° warmer on a April afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 41° · April
- Coldest nights
- 16° · January
- Wettest month
- August
- Driest month
- January
- Clearest skies
- January · 12% cloud
- Longest day
- 12 h 54 min
- Shortest day
- 11 h 22 min
iiCharts
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columnsTemperature curve
Average high, lowDaylight
Hours between sunrise and sunset on the 15th of each monthiiiData table
Climate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 32° | 35° | 38° | 41° | 40° | 38° | 34° | 32° | 34° | 37° | 36° | 33° |
| Average low | 16° | 19° | 22° | 26° | 28° | 27° | 25° | 24° | 25° | 24° | 20° | 17° |
| Precipitation | 0 mm | 0 mm | 1 mm | 5 mm | 24 mm | 78 mm | 142 mm | 172 mm | 85 mm | 12 mm | 0 mm | 0 mm |
| Wet days (≥1 mm) | 0 | 0 | 0 | 0.7 | 3.3 | 11.5 | 21.3 | 26.2 | 18.7 | 3.7 | 0 | 0 |
| Cloud cover | 12% | 14% | 23% | 29% | 28% | 23% | 33% | 39% | 29% | 21% | 17% | 16% |
| Daylight | 11h 26 | 11h 43 | 12h 03 | 12h 25 | 12h 44 | 12h 54 | 12h 50 | 12h 34 | 12h 13 | 11h 51 | 11h 32 | 11h 22 |
| Month score | 71 | 59 | 58 | 56 | 50 | 31 | 27 | 33 | 28 | 49 | 58 | 67 |
ivMonth by month
Say in every month
January71
32° / 16°
0 mm · 0 wet days
February59
35° / 19°
0 mm · 0 wet days
March58
38° / 22°
1 mm · 0 wet days
April56
41° / 26°
5 mm · 0.7 wet day
May50
40° / 28°
24 mm · 3.3 wet days
June31
38° / 27°
78 mm · 11.5 wet days
July27
34° / 25°
142 mm · 21.3 wet days
August33
32° / 24°
172 mm · 26.2 wet days
September28
34° / 25°
85 mm · 18.7 wet days
October49
37° / 24°
12 mm · 3.7 wet days
November58
36° / 20°
0 mm · 0 wet days
December67
33° / 17°
0 mm · 0 wet days