Fianarantsoa weather in September

In September, Fianarantsoa sees average daytime highs of 23°C and overnight lows near 12°C, with 9 mm of rain across 2.5 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 55% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Fianarantsoa's 1st-clearest and 1st-windiest month. For the whole year in context, see Fianarantsoa's year-round climate.

Daytime high: 23°; 8th warmest
Overnight low: 12°; 4th coldest
Rainfall: 9 mm; 2.5 wet days
Daylight: 11 h 54 min; 5:50 AM – 5:42 PM
Cloud cover: 36%; 1st clearest
Wind: 12 km/h; 1st windiest
Solar energy: 5.96 kWh/m²
Travel score: 8.3; out of 10

← August Fianarantsoa year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 24°C by the end.

A typical September day in Fianarantsoa reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	21	21	21	21	22	22	22	22	22	22	22	22	22	23	23	23	23	23	23	23	23	23	23	23	24	24	24	24	24	24
Avg low (°C)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	12	12	12	12	12	12	12	12	12	12	12	12	12	13	13

	Avg high (°C)	Avg low (°C)
1	21	11
2	21	11
3	21	11
4	21	11
5	22	11
6	22	11
7	22	11
8	22	11
9	22	11
10	22	11
11	22	11
12	22	11
13	22	11
14	23	11
15	23	11
16	23	12
17	23	12
18	23	12
19	23	12
20	23	12
21	23	12
22	23	12
23	23	12
24	23	12
25	24	12
26	24	12
27	24	12
28	24	12
29	24	13
30	24	13

Fianarantsoa weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 11th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	25° / 18°	287	22.8	13.2	4.7
Feb	25° / 18°	213	19.1	12.7	4.9
Mar	25° / 17°	146	16.7	12.2	5.8
Apr	24° / 15°	49	10.3	11.5	6.9
May	22° / 13°	24	5.4	11	7.5
Jun	20° / 11°	12	3.1	10.7	7.5
Jul	19° / 10°	15	3.5	10.8	7.2
Aug	20° / 10°	9	2.7	11.3	7.8
Sep	23° / 12°	9	2.5	11.9	8.3
Oct	25° / 14°	43	7.4	12.5	7.6
Nov	26° / 16°	95	12.6	13	6.3
Dec	26° / 17°	209	19.7	13.3	5.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 23%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	73	74	74	74	75	75	75	76	75	76	76	77	77	77	78	78	78	78	79	79	79	79	79	79	79	78	78	78	77	76
Cloudier (%)	27	26	26	26	25	25	25	24	25	24	24	23	23	23	22	22	22	22	21	21	21	21	21	21	21	22	22	22	23	24

	Clearer (%)	Cloudier (%)
1	73	27
2	74	26
3	74	26
4	74	26
5	75	25
6	75	25
7	75	25
8	76	24
9	75	25
10	76	24
11	76	24
12	77	23
13	77	23
14	77	23
15	78	22
16	78	22
17	78	22
18	78	22
19	79	21
20	79	21
21	79	21
22	79	21
23	79	21
24	79	21
25	79	21
26	78	22
27	78	22
28	78	22
29	77	23
30	76	24

Chance of precipitation in September

Any precipitation

Fianarantsoa gets around 9 mm of rain over 2.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 9% and peaks near 14% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	8	8	8	9	9	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	9	9	10	10	11	12	12	13	14

	Rain chance (%)
1	8
2	8
3	8
4	9
5	9
6	8
7	8
8	8
9	8
10	8
11	8
12	8
13	8
14	8
15	8
16	8
17	8
18	8
19	8
20	8
21	8
22	9
23	9
24	10
25	10
26	11
27	12
28	12
29	13
30	14

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 76% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	90	90	89	89	88	88	87	86	85	85	83	82	81	79	78	76	75	74	72	70	69	68	67	66	65	63	62	62	60	59
Comfortable (%)	10	10	11	11	12	12	13	14	15	15	17	18	19	21	22	24	25	26	28	29	30	31	32	33	34	35	36	36	37	38
Humid (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	2	2	2	3	3

	Dry (%)	Comfortable (%)	Humid (%)
1	90	10	0
2	90	10	0
3	89	11	0
4	89	11	0
5	88	12	0
6	88	12	0
7	87	13	0
8	86	14	0
9	85	15	0
10	85	15	0
11	83	17	0
12	82	18	0
13	81	19	0
14	79	21	0
15	78	22	0
16	76	24	0
17	75	25	0
18	74	26	0
19	72	28	0
20	70	29	1
21	69	30	1
22	68	31	1
23	67	32	1
24	66	33	1
25	65	34	1
26	63	35	2
27	62	36	2
28	62	36	2
29	60	37	3
30	59	38	3

Wind in September

Winds average 12 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	12	light breeze
2	12	light breeze
3	12	light breeze
4	12	light breeze
5	12	light breeze
6	12	light breeze
7	12	light breeze
8	12	light breeze
9	12	calm
10	12	calm
11	12	calm
12	12	calm
13	12	calm
14	12	calm
15	12	calm
16	12	calm
17	12	calm
18	12	calm
19	12	calm
20	12	calm
21	12	calm
22	12	calm
23	12	calm
24	12	calm
25	12	calm
26	12	calm
27	12	calm
28	12	calm
29	12	calm
30	12	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over September. Sunrise moves from 6:04 AM to 5:36 AM, and sunset from 5:38 PM to 5:46 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.6	11.6	11.6	11.6	11.6	11.7	11.7	11.7	11.7	11.8	11.8	11.8	11.8	11.8	11.9	11.9	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.0	12.1	12.1	12.1	12.1	12.2	12.2
Sunrise (AM)	6:04	6:03	6:02	6:01	6:01	6:00	5:59	5:58	5:57	5:56	5:55	5:54	5:53	5:52	5:51	5:50	5:49	5:48	5:47	5:46	5:45	5:44	5:43	5:42	5:41	5:40	5:39	5:38	5:37	5:36
Sunset (PM)	5:38	5:39	5:39	5:39	5:39	5:40	5:40	5:40	5:41	5:41	5:41	5:41	5:42	5:42	5:42	5:42	5:43	5:43	5:43	5:43	5:44	5:44	5:44	5:44	5:45	5:45	5:45	5:46	5:46	5:46

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.6	6:04	5:38
2	11.6	6:03	5:39
3	11.6	6:02	5:39
4	11.6	6:01	5:39
5	11.6	6:01	5:39
6	11.7	6:00	5:40
7	11.7	5:59	5:40
8	11.7	5:58	5:40
9	11.7	5:57	5:41
10	11.8	5:56	5:41
11	11.8	5:55	5:41
12	11.8	5:54	5:41
13	11.8	5:53	5:42
14	11.8	5:52	5:42
15	11.9	5:51	5:42
16	11.9	5:50	5:42
17	11.9	5:49	5:43
18	11.9	5:48	5:43
19	11.9	5:47	5:43
20	12.0	5:46	5:43
21	12.0	5:45	5:44
22	12.0	5:44	5:44
23	12.0	5:43	5:44
24	12.0	5:42	5:44
25	12.1	5:41	5:45
26	12.1	5:40	5:45
27	12.1	5:39	5:45
28	12.1	5:38	5:46
29	12.2	5:37	5:46
30	12.2	5:36	5:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.96 kWh/m².

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 6.69 kWh/m² in November across the year — September's 5.96 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.4	5.5	5.5	5.5	5.6	5.6	5.7	5.7	5.7	5.8	5.8	5.8	5.9	5.9	5.9	6.0	6.0	6.0	6.1	6.1	6.1	6.2	6.2	6.2	6.2	6.3	6.3	6.3	6.3	6.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	5.4	Bright
2	5.5	Bright
3	5.5	Bright
4	5.5	Bright
5	5.6	Bright
6	5.6	Bright
7	5.7	Bright
8	5.7	Bright
9	5.7	Bright
10	5.8	Bright
11	5.8	Bright
12	5.8	Bright
13	5.9	Bright
14	5.9	Bright
15	5.9	Bright
16	6.0	Bright
17	6.0	Intense
18	6.0	Intense
19	6.1	Intense
20	6.1	Intense
21	6.1	Intense
22	6.2	Intense
23	6.2	Intense
24	6.2	Intense
25	6.2	Intense
26	6.3	Intense
27	6.3	Intense
28	6.3	Intense
29	6.3	Intense
30	6.3	Intense

Planning a trip in September

Hazard calendar for Fianarantsoa

In seasonPeak

None of Fianarantsoa's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Fianarantsoa's monsoon runs December–March, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Fianarantsoa?

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

8.3

Sightseeing

1st-best month of the year

6.1

Beach & pool

2nd-best month of the year

September is one of the better times to visit Fianarantsoa for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Fianarantsoa in September

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

In September, Fianarantsoa sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Fianarantsoa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fianarantsoa peaks around February 12 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 6 (high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	15	16	13	11	8	6	7	8	10	12	13	15
Level	Extreme	Extreme	Extreme	Extreme	Very high	High	High	Very high	Very high	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	16	Extreme
Mar	13	Extreme
Apr	11	Extreme
May	8	Very high
Jun	6	High
Jul	7	High
Aug	8	Very high
Sep	10	Very high
Oct	12	Extreme
Nov	13	Extreme
Dec	15	Extreme

Air quality in Fianarantsoa in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Fianarantsoa is worst in October — around 22 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (February, 6 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	6	6	7	10	15	15	15	15	14	22	16	10
Level	Good	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good

	PM2.5 (µg/m³)	Level
Jan	6	Good
Feb	6	Good
Mar	7	Good
Apr	10	Good
May	15	Moderate
Jun	15	Moderate
Jul	15	Moderate
Aug	15	Moderate
Sep	14	Moderate
Oct	22	Moderate
Nov	16	Moderate
Dec	10	Good

Location & terrain

Where is Fianarantsoa?

Fianarantsoa sits at 21.5°S, 47.1°E, 1,117 m above sea level, in Madagascar. The nearest listed city is Ambalavao, 45 km away.

Topography around Fianarantsoa

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

Within 3 km, the terrain around Fianarantsoa has significant variations in elevation — a maximum elevation change of 297 m around an average of 1,148 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 503 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,372 m.

The land around Fianarantsoa is covered by cropland (33%), grassland (25%) and artificial surfaces (23%) within 3 km, grassland (62%) and cropland (29%) within 16 km, and grassland (63%) within 80 km.

3 km

297 m

cropland 33%

16 km

503 m

grassland 62%

80 km

2,372 m

grassland 63%

treesshrubsgrasslandcroplandartificial surfaces

← August Fianarantsoa year-round climate October →Best places to visit in September

September weather nearby: Ambalavao 45 km · Ifanadiana 59 km · Ikongo 60 km · Ikalamavony 62 km · Amboanjo 100 km · Ambositra 104 km · Ambatofinandrahana 104 km · Ivohibe 116 km

Madagascar travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / E; 220 V · 50 Hz
Prices: ≈ 31% of US; price level, 2025
GDP per capita: $599; 2025
Happiness: 4.2 / 10; World Happiness, 2025
Safe drinking water: 22%; of population, 2024
Road deaths: 29.2; per 100k/yr, 2019
Income group: Low; World Bank
English: Low; EF EPI 457
Religion

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 Fianarantsoa (-21.4527°, 47.0857°, elevation 1,117 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).

	Avg high (°C)	Avg low (°C)
1	21	11
2	21	11
3	21	11
4	21	11
5	22	11
6	22	11
7	22	11
8	22	11
9	22	11
10	22	11
11	22	11
12	22	11
13	22	11
14	23	11
15	23	11
16	23	12
17	23	12
18	23	12
19	23	12
20	23	12
21	23	12
22	23	12
23	23	12
24	23	12
25	24	12
26	24	12
27	24	12
28	24	12
29	24	13
30	24	13

	Clearer (%)	Cloudier (%)
1	73	27
2	74	26
3	74	26
4	74	26
5	75	25
6	75	25
7	75	25
8	76	24
9	75	25
10	76	24
11	76	24
12	77	23
13	77	23
14	77	23
15	78	22
16	78	22
17	78	22
18	78	22
19	79	21
20	79	21
21	79	21
22	79	21
23	79	21
24	79	21
25	79	21
26	78	22
27	78	22
28	78	22
29	77	23
30	76	24

	Rain chance (%)
1	8
2	8
3	8
4	9
5	9
6	8
7	8
8	8
9	8
10	8
11	8
12	8
13	8
14	8
15	8
16	8
17	8
18	8
19	8
20	8
21	8
22	9
23	9
24	10
25	10
26	11
27	12
28	12
29	13
30	14

	Dry (%)	Comfortable (%)	Humid (%)
1	90	10	0
2	90	10	0
3	89	11	0
4	89	11	0
5	88	12	0
6	88	12	0
7	87	13	0
8	86	14	0
9	85	15	0
10	85	15	0
11	83	17	0
12	82	18	0
13	81	19	0
14	79	21	0
15	78	22	0
16	76	24	0
17	75	25	0
18	74	26	0
19	72	28	0
20	70	29	1
21	69	30	1
22	68	31	1
23	67	32	1
24	66	33	1
25	65	34	1
26	63	35	2
27	62	36	2
28	62	36	2
29	60	37	3
30	59	38	3

	Avg high (°C)	Avg low (°C)
1	21	11
2	21	11
3	21	11
4	21	11
5	22	11
6	22	11
7	22	11
8	22	11
9	22	11
10	22	11
11	22	11
12	22	11
13	22	11
14	23	11
15	23	11
16	23	12
17	23	12
18	23	12
19	23	12
20	23	12
21	23	12
22	23	12
23	23	12
24	23	12
25	24	12
26	24	12
27	24	12
28	24	12
29	24	13
30	24	13

	Clearer (%)	Cloudier (%)
1	73	27
2	74	26
3	74	26
4	74	26
5	75	25
6	75	25
7	75	25
8	76	24
9	75	25
10	76	24
11	76	24
12	77	23
13	77	23
14	77	23
15	78	22
16	78	22
17	78	22
18	78	22
19	79	21
20	79	21
21	79	21
22	79	21
23	79	21
24	79	21
25	79	21
26	78	22
27	78	22
28	78	22
29	77	23
30	76	24

	Rain chance (%)
1	8
2	8
3	8
4	9
5	9
6	8
7	8
8	8
9	8
10	8
11	8
12	8
13	8
14	8
15	8
16	8
17	8
18	8
19	8
20	8
21	8
22	9
23	9
24	10
25	10
26	11
27	12
28	12
29	13
30	14

	Dry (%)	Comfortable (%)	Humid (%)
1	90	10	0
2	90	10	0
3	89	11	0
4	89	11	0
5	88	12	0
6	88	12	0
7	87	13	0
8	86	14	0
9	85	15	0
10	85	15	0
11	83	17	0
12	82	18	0
13	81	19	0
14	79	21	0
15	78	22	0
16	76	24	0
17	75	25	0
18	74	26	0
19	72	28	0
20	70	29	1
21	69	30	1
22	68	31	1
23	67	32	1
24	66	33	1
25	65	34	1
26	63	35	2
27	62	36	2
28	62	36	2
29	60	37	3
30	59	38	3

	Avg high (°C)	Avg low (°C)
1	21	11
2	21	11
3	21	11
4	21	11
5	22	11
6	22	11
7	22	11
8	22	11
9	22	11
10	22	11
11	22	11
12	22	11
13	22	11
14	23	11
15	23	11
16	23	12
17	23	12
18	23	12
19	23	12
20	23	12
21	23	12
22	23	12
23	23	12
24	23	12
25	24	12
26	24	12
27	24	12
28	24	12
29	24	13
30	24	13

	Clearer (%)	Cloudier (%)
1	73	27
2	74	26
3	74	26
4	74	26
5	75	25
6	75	25
7	75	25
8	76	24
9	75	25
10	76	24
11	76	24
12	77	23
13	77	23
14	77	23
15	78	22
16	78	22
17	78	22
18	78	22
19	79	21
20	79	21
21	79	21
22	79	21
23	79	21
24	79	21
25	79	21
26	78	22
27	78	22
28	78	22
29	77	23
30	76	24

	Rain chance (%)
1	8
2	8
3	8
4	9
5	9
6	8
7	8
8	8
9	8
10	8
11	8
12	8
13	8
14	8
15	8
16	8
17	8
18	8
19	8
20	8
21	8
22	9
23	9
24	10
25	10
26	11
27	12
28	12
29	13
30	14

	Dry (%)	Comfortable (%)	Humid (%)
1	90	10	0
2	90	10	0
3	89	11	0
4	89	11	0
5	88	12	0
6	88	12	0
7	87	13	0
8	86	14	0
9	85	15	0
10	85	15	0
11	83	17	0
12	82	18	0
13	81	19	0
14	79	21	0
15	78	22	0
16	76	24	0
17	75	25	0
18	74	26	0
19	72	28	0
20	70	29	1
21	69	30	1
22	68	31	1
23	67	32	1
24	66	33	1
25	65	34	1
26	63	35	2
27	62	36	2
28	62	36	2
29	60	37	3
30	59	38	3