New Amsterdam climate — normals and trends
New Amsterdam (Guyana) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.0 °C and it receives 2,468 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is September (27.1 °C on average) and the coldest is January (25.2 °C). Rainfall peaks in June.
New Amsterdam averages 0 frost days, 9 hot days (≥ 30 °C) and 292 rainy days per year.
New Amsterdam has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.8 °C (on 1 October 2023) and the coldest 21.3 °C (on 21 July 1975).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
New AmsterdamEast Berbice-Corentyne
- coords
- 6.25°, -57.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.0°C
Average daily high
27.8°C
Average daily low
24.6°C
Annual rainfall
2,468mm
Sunshine / day
10.8h
Mean relative humidity
84%
Average peak wind
17.2km/h
Seasonal range
1.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
292 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.5 °C
Average feels-like low
28.1 °C
Average peak gust
29.6 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.57 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
32.8 °C
1 October 2023
Coldest day
21.3 °C
21 July 1975
Wettest day
165 mm
6 April 2010
Windiest day
32.2 km/h
7 May 2023
Strongest gust
51.8 km/h
27 April 2010
Hottest feels-like
39.9 °C
27 September 2023
Coldest feels-like
23.0 °C
21 July 1975
Sunniest day
12.0 h
12 March 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 28.0 °C | +1.1 °C | 216 mm | +16 mm |
| Feb | 27.5 °C | +0.6 °C | 181 mm | +44 mm |
| Mar | 27.9 °C | +0.6 °C | 170 mm | +46 mm |
| Apr | 28.0 °C | +0.4 °C | 280 mm | +95 mm |
| May | 27.9 °C | +0.3 °C | 592 mm | +257 mm |
| Jun | 28.0 °C | +0.5 °C | 603 mm | +209 mm |
| Jul | 28.7 °C | +0.8 °C | 271 mm | -30 mm |
| Aug | 29.2 °C | +0.6 °C | 165 mm | -11 mm |
| Sep | 30.1 °C | +1.0 °C | 44 mm | -45 mm |
| Oct | 30.2 °C | +1.2 °C | 54 mm | -48 mm |
| Nov | 28.8 °C | +0.4 °C | 229 mm | +45 mm |
| Dec | 28.1 °C | +0.8 °C | 249 mm | +8 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of New Amsterdam?
New Amsterdam has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.0 °C and it receives 2,468 mm of precipitation per year.
What is the hottest day ever recorded in New Amsterdam?
The hottest day measured in New Amsterdam between 1940 and 2025 was 1 October 2023, reaching 32.8 °C.
What is the coldest day in New Amsterdam?
The coldest day measured in New Amsterdam between 1940 and 2025 was 21 July 1975, at 21.3 °C.
Does it snow in New Amsterdam?
Almost never: New Amsterdam sees virtually no snow, with about 0 frost days per year.
Has the climate of New Amsterdam warmed?
Yes: New Amsterdam warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in New Amsterdam?
The wettest day measured in New Amsterdam between 1940 and 2025 was 6 April 2010, with 165 mm of rain in 24 hours.
What was the windiest day in New Amsterdam?
The windiest day measured in New Amsterdam between 1940 and 2025 was 7 May 2023, with winds reaching 32.2 km/h.
What is the warmest month in New Amsterdam?
The warmest month in New Amsterdam is September (27.1 °C on average); the coldest is January (25.2 °C).
How much does it rain in New Amsterdam?
New Amsterdam receives on average 2,468 mm of precipitation per year, spread over about 292 rainy days.
Is it sunny in New Amsterdam?
New Amsterdam gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in New Amsterdam?
Yes: New Amsterdam has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in New Amsterdam?
In New Amsterdam, between 1940 and 2025, the highest apparent temperature reached 39.9 °C on 27 September 2023, and the lowest was 23.0 °C on 21 July 1975.
Compare New Amsterdam with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around New Amsterdam