Blantyre weather in May

In May, Blantyre has daytime highs averaging 23 °C, nights around 14 °C, with 4.0 wet days. Figures are 1991–2020 climate normals.

  1. Jan 22°
  2. Feb 22°
  3. Mar 21°
  4. Apr 20°
  5. May 18°
  6. Jun 17°
  7. Jul 16°
  8. Aug 18°
  9. Sep 21°
  10. Oct 23°
  11. Nov 24°
  12. Dec 23°

Daily temperatures through May

10° 19° 27° 18152229
Daily high Daily low Day of month on the horizontal axis. Highs peak at 24.6 °C and lows bottom out at 12.6 °C.

How May develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

Days Avg high Avg low Chance of rain
1–10 May 23.7 °C 14.4 °C 16 %
11–20 May 23.1 °C 13.7 °C 14 %
21–31 May 22.9 °C 13.3 °C 10 %
0% 50% 100% 1 5 10 15 20 25 30
Chance of a wet day (over 1 mm) by date in May. Wettest date over the 30 years: May 8, at 27 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure Typical May Share of the month
Days above 25 °C 6.1 of 31 20 %
Days above 30 °C 0.03 of 31 0 %
Days below 0 °C 0 of 31 0 %
Days with more than 1 mm rain 4.0 of 31 13 %

Conditions in May

MeasureAverage
Mean temperature 18 °C
Record high (1991–2020) 30 °C
Record low (1991–2020) 8.5 °C
Relative humidity 72 %
Wind speed 13 km/h
Cloud cover 35 %

Where Blantyre ranks in May

Ranking Position Value
Places with the best weather in Africa in May 12th of 50 96/100
Places with the best weather in the world in May 24th of 50 96/100

May compared with the months around it

Month Avg high Rainfall Cloud
March 25.3 °C 156 mm 64 %
April 24.3 °C 49 mm 46 %
May 23.2 °C 14 mm 35 %
June 21.5 °C 12 mm 36 %
July 20.9 °C 15 mm 40 %

See all twelve months for Blantyre

QuestionsMay in Blantyre, answered

How warm is Blantyre in May?

Daily highs average 23 °C and nights fall to about 14 °C, a spread of 9.5 °C between afternoon and dawn. That makes May the 9th warmest month of the year here.

Does it rain much in Blantyre in May?

May averages 14 mm of rain, spread over about 4 of the 31 days — 13 % of the month. Cloud cover averages 35 % of the sky.

How long are the days in May?

Blantyre averages 11 hours between sunrise and sunset in May. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.