Tulcán, Ecuador climate

As Tropical savanna (dry summer)

Tulcán has a remarkably steady warm-temperate climate (Tropical savanna (dry summer), Köppen As). The hottest month is August with an average daily high near 26°C, while the coldest is January averaging around 15°C at night. Precipitation totals about 1188 mm a year and is strongly seasonal — November alone averages 178 mm while August barely receives 17 mm.

☀️ All year

Warm

Daytime highs near 26°C most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 15°C.

🌧️ Rain

Wet

About 1188 mm of rain a year.

Wettest in November

⛅ Sky & trend

Often grey

Overcast skies dominate much of the year.

+0.9 °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

Tulcán climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	24	24	24	24	25	25	25	26	26	25	24	23
Avg temp (°C)	19	19	20	20	20	20	20	20	20	20	19	19
Avg low (°C)	15	15	15	15	15	15	15	15	15	15	15	15
Precipitation (mm)	116	80	148	152	127	56	27	17	57	126	178	104

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	24	24	24	24	25	25
Avg temp (°C)	19	19	20	20	20	20
Avg low (°C)	15	15	15	15	15	15
Precipitation (mm)	116	80	148	152	127	56

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	25	26	26	25	24	23
Avg temp (°C)	20	20	20	20	19	19
Avg low (°C)	15	15	15	15	15	15
Precipitation (mm)	27	17	57	126	178	104

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	8	11	12	11	7	5	3	5	11	13	11
Days with low ≤ 0°C (days)	0.2	0.2	0.2	0.4	0.1	0.0	0.1	0.2	0.0	0.3	0.2	0.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	9	8	11	12	11	7
Days with low ≤ 0°C (days)	0.2	0.2	0.2	0.4	0.1	0.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	5	3	5	11	13	11
Days with low ≤ 0°C (days)	0.1	0.2	0.0	0.3	0.2	0.5

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	77	82	85	84	83	76	73	72	77	82	84	78
Clear days (≤ 30% cloud)	0.1	0.0	0.0	—	0.0	—	0.2	0.1	0.0	—	0.1	0.2
Partly cloudy days (30–70%)	10	6	4	4	5	10	11	13	9	5	4	8
Cloudy days (≥ 70%)	21	22	27	26	26	20	19	18	21	26	25	22
Relative humidity (%)	85	84	84	84	82	79	77	75	76	81	85	85
Wind speed (mph)	2.8	2.5	2.3	2.1	1.9	2.3	2.6	2.8	2.3	2.6	3.0	2.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	77	82	85	84	83	76
Clear days (≤ 30% cloud)	0.1	0.0	0.0	—	0.0	—
Partly cloudy days (30–70%)	10	6	4	4	5	10
Cloudy days (≥ 70%)	21	22	27	26	26	20
Relative humidity (%)	85	84	84	84	82	79
Wind speed (mph)	2.8	2.5	2.3	2.1	1.9	2.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	73	72	77	82	84	78
Clear days (≤ 30% cloud)	0.2	0.1	0.0	—	0.1	0.2
Partly cloudy days (30–70%)	11	13	9	5	4	8
Cloudy days (≥ 70%)	19	18	21	26	25	22
Relative humidity (%)	77	75	76	81	85	85
Wind speed (mph)	2.6	2.8	2.3	2.6	3.0	2.8

Methodology & sources

Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Precipitation — 1991–2020 normals computed from 16 years of daily observations at Pasto/antonio Narin, a weather station, about 84 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 →