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Coimbatore, India climate

BSh Hot semi-arid

Coimbatore has a mildly seasonal tropical climate (Hot semi-arid, Köppen BSh). The hottest month is April with an average daily high near 36°C, while the coldest is December averaging around 19°C at night. Precipitation totals about 642 mm a year and is strongly seasonal — October alone averages 182 mm while January barely receives 4 mm.

☀️ Summers

Very hot

Highs near 36°C in April.

About 191 days a year above 32 °C

❄️ Winters

Mild

Lows near 19°C in December.

🌧️ Rain

Moderate rainfall

About 642 mm of rain a year.

Wettest in October

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+0.3 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Coimbatore climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	33	36	36	35	33	32	32	33	32	30	30
Avg temp (°C)	25	27	29	30	29	28	27	27	28	27	26	25
Avg low (°C)	19	20	22	24	24	23	22	22	22	22	21	19
Precipitation (mm)	4	8	7	9	82	19	35	19	80	182	147	51

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	31	33	36	36	35	33
Avg temp (°C)	25	27	29	30	29	28
Avg low (°C)	19	20	22	24	24	23
Precipitation (mm)	4	8	7	9	82	19

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	32	32	33	32	30	30
Avg temp (°C)	27	27	28	27	26	25
Avg low (°C)	22	22	22	22	21	19
Precipitation (mm)	35	19	80	182	147	51

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	0.6	0.7	0.9	3	4	6	7	5	6	10	9	4
Days with high ≥ 32°C (days)	7	21	26	26	25	17	13	15	19	14	4	2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	0.6	0.7	0.9	3	4	6
Days with high ≥ 32°C (days)	7	21	26	26	25	17

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	7	5	6	10	9	4
Days with high ≥ 32°C (days)	13	15	19	14	4	2

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	38	33	35	55	67	81	87	85	78	74	66	51
Clear days (≤ 30% cloud)	14	16	16	6	3	0.8	0.2	0.2	0.6	2	5	10
Partly cloudy days (30–70%)	12	9	10	15	12	7	4	5	8	10	10	11
Cloudy days (≥ 70%)	4	3	5	9	16	22	27	25	21	19	16	10
Relative humidity (%)	68	56	52	62	74	83	86	86	85	85	84	79
Wind speed (km/h)	6.6	6.2	5.7	5.5	8.2	12.0	12.3	10.9	8.4	5.7	5.5	6.6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	38	33	35	55	67	81
Clear days (≤ 30% cloud)	14	16	16	6	3	0.8
Partly cloudy days (30–70%)	12	9	10	15	12	7
Cloudy days (≥ 70%)	4	3	5	9	16	22
Relative humidity (%)	68	56	52	62	74	83
Wind speed (km/h)	6.6	6.2	5.7	5.5	8.2	12.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	87	85	78	74	66	51
Clear days (≤ 30% cloud)	0.2	0.2	0.6	2	5	10
Partly cloudy days (30–70%)	4	5	8	10	10	11
Cloudy days (≥ 70%)	27	25	21	19	16	10
Relative humidity (%)	86	86	85	85	84	79
Wind speed (km/h)	12.3	10.9	8.4	5.7	5.5	6.6

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Coimbatore/peelamed, a weather station, about 10 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →