When to go · Guatemala

When to go to Retalhuleu

Twelve months of averages for Retalhuleu, and what they say about when to go.

When to go

What the averages say

Mean daily highs and lows and the month's rain, averaged over 2001 to 2020.

On these averages, Retalhuleu has a mean high between 18°C and 32°C and under 150 mm of rain in November to April.

Of those months, it is also dry (under 50 mm of rain) and not humid in March.

Wet months (150 mm of rain or more): May to October.
Humid months (a high of 25°C or more with relative humidity of 70% or more): May to February.
The warmest month is April (31°C) and the coolest October (28°C). The wettest is September (377 mm) and the driest February (6 mm); about 2,101 mm of rain falls in a year.

How these sentences are worded

Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.

Retalhuleu: highs, lows and rainHighLowRain

The year at a glance

Mild to warm and dry
Mild to warm, humid or showery
Hot
Cool
Wet
Cold

JanMild–warm, mixed
FebMild–warm, mixed
MarMild–warm, dry
AprMild–warm, mixed
MayWet
JunWet
JulWet
AugWet
SeptWet
OctWet
NovMild–warm, mixed
DecMild–warm, mixed

Month by month

Every month in Retalhuleu

The whole year, with humidity, cloud and the sunlight reaching the ground.

Climate in Retalhuleu by month: mean daily high and low, rain, and what the month is like
Month	High	Low	Rain	Humidity	Cloud	Sunlight (kWh/m²/day)	High in Dubai	What it is like
January	28°C	21°C	7 mm	75%	32%	5.2	23°C	Mild to warm, humid or showery
February	29°C	21°C	6 mm	71%	36%	5.6	24°C	Mild to warm, humid or showery
March	30°C	22°C	23 mm	68%	44%	5.8	27°C	Mild to warm and dry
April	31°C	23°C	75 mm	69%	56%	5.6	31°C	Mild to warm, humid or showery
May	30°C	24°C	276 mm	78%	77%	5.1	35°C	Wet
June	28°C	23°C	342 mm	83%	82%	5	37°C	Wet
July	29°C	23°C	264 mm	82%	74%	5.6	39°C	Wet
August	29°C	23°C	319 mm	83%	78%	5.4	39°C	Wet
September	28°C	23°C	377 mm	85%	83%	4.9	37°C	Wet
October	28°C	23°C	329 mm	86%	73%	4.7	34°C	Wet
November	28°C	22°C	73 mm	81%	48%	5	29°C	Mild to warm, humid or showery
December	28°C	21°C	10 mm	77%	33%	5	25°C	Mild to warm, humid or showery

The Dubai column is Dubai's mean daily high, for comparison.

Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.

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Plan a trip to Retalhuleu More about Retalhuleu When to go

Month

High

Low

Rain

Humidity

Cloud

Sunlight (kWh/m²/day)

High in Dubai

What it is like

January

28°C

21°C

7 mm

75%

32%

5.2

23°C

Mild to warm, humid or showery

February

29°C

21°C

6 mm

71%

36%

5.6

24°C

Mild to warm, humid or showery

March

30°C

22°C

23 mm

68%

44%

5.8

27°C

Mild to warm and dry

April

31°C

23°C

75 mm

69%

56%

5.6

31°C

Mild to warm, humid or showery

May

30°C

24°C

276 mm

78%

77%

5.1

35°C

Wet

June

28°C

23°C

342 mm

83%

82%

37°C

Wet

July

29°C

23°C

264 mm

82%

74%

5.6

39°C

Wet

August

29°C

23°C

319 mm

83%

78%

5.4

39°C

Wet

September

28°C

23°C

377 mm

85%

83%

4.9

37°C

Wet

October

28°C

23°C

329 mm

86%

73%

4.7

34°C

Wet

November

28°C

22°C

73 mm

81%

48%

29°C

Mild to warm, humid or showery

December

28°C

21°C

10 mm

77%

33%

25°C

Mild to warm, humid or showery