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Castries vs New Orleans

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Comparing Castries change · New Orleans change

Bottom line

Castries is the warmer of the two — about 5°C on the annual average; Castries is the wetter, with 321 mm more rain a year, and Castries the sunnier.

Warmer Castries 5°C on the year

Wetter Castries 321 mm more a year

Sunnier Castries 6 pp less cloud

Colder winters New Orleans 17°C colder nights

How the seasons compare

The differences between Castries and New Orleans, in everyday terms.

Summers

New Orleans has much hotter summers

Castries: Warm
New Orleans: Hot

Winters

Castries has far milder winters

Castries: Stays warm
New Orleans: Cool

Rain & snow

Castries is wetter

Castries: Very wet
New Orleans: Very wet

Sky

Castries is sunnier

Castries: Fairly sunny
New Orleans: Partly cloudy

Month-by-month charts

Temperature

Castries is the warmer of the two — about 5°C on the annual average.

Precipitation

Castries is the wetter — about 321 mm more across the year.

Clear skies

Castries has the clearer skies — the higher line.

Exact monthly numbers

Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.

Avg high (°C) Varies through the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Castries	27	27	27	28	28	28	28	29	29	29	28	27
New Orleans	18	20	24	27	31	34	34	34	32	28	23	19
Difference	-9	-6	-3	—	+3	+5	+6	+6	+3	—	-5	-8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Castries	27	27	27	28	28	28
New Orleans	18	20	24	27	31	34
Difference	-9	-6	-3	—	+3	+5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Castries	28	29	29	29	28	27
New Orleans	34	34	32	28	23	19
Difference	+6	+6	+3	—	-5	-8

Avg low (°C) Castries runs higher most of the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Castries	26	25	25	26	27	27	27	28	28	28	27	26
New Orleans	8	10	13	17	21	24	25	25	23	18	13	9
Difference	-18	-15	-12	-9	-6	-3	-2	-3	-5	-9	-15	-17

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Castries	26	25	25	26	27	27
New Orleans	8	10	13	17	21	24
Difference	-18	-15	-12	-9	-6	-3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Castries	27	28	28	28	27	26
New Orleans	25	25	23	18	13	9
Difference	-2	-3	-5	-9	-15	-17

Precipitation (mm) Varies through the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Castries	113	76	66	90	114	134	216	291	224	246	243	149
New Orleans	126	105	117	127	137	187	223	173	145	91	96	115
Difference	+12	+29	+51	+37	+23	+54	+7	-119	-79	-155	-147	-35

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Castries	113	76	66	90	114	134
New Orleans	126	105	117	127	137	187
Difference	+12	+29	+51	+37	+23	+54

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Castries	216	291	224	246	243	149
New Orleans	223	173	145	91	96	115
Difference	+7	-119	-79	-155	-147	-35

Cloud cover (%) Varies through the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Castries	38	39	42	49	52	59	50	46	51	51	46	41
New Orleans	59	59	55	53	48	53	58	56	48	41	46	59
Difference	+21	+21	+13	+4	-4	-6	+9	+10	-3	-10	—	+19

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Castries	38	39	42	49	52	59
New Orleans	59	59	55	53	48	53
Difference	+21	+21	+13	+4	-4	-6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Castries	50	46	51	51	46	41
New Orleans	58	56	48	41	46	59
Difference	+9	+10	-3	-10	—	+19

Relative humidity (%) Varies through the year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Castries	76	75	75	76	77	79	79	79	79	79	79	77
New Orleans	82	82	81	79	77	77	77	77	78	78	79	82
Difference	+6	+7	+6	+3	-1	-2	-1	-2	-1	-1	—	+5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Castries	76	75	75	76	77	79
New Orleans	82	82	81	79	77	77
Difference	+6	+7	+6	+3	-1	-2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Castries	79	79	79	79	79	77
New Orleans	77	77	78	78	79	82
Difference	-1	-2	-1	-1	—	+5

How both climates are changing

Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Castries trends → · New Orleans trends →

Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).

Methodology & sources

Castries

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 10 years of daily observations at LE Lamentin, a weather station, about 66 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.

New Orleans

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at New Orleans Audubon (NOAA GHCN station USW00012930), about 7 km from the city centre.

How we build these numbers →

← change Castries · change New Orleans → · Castries page · New Orleans page