How warm is it in Monemvasia in September?

Daytime highs averaged 26.8 °C, night-time lows 24.1 °C. The highest value of the past 10 years was 31.8 °C (1 Sep 2020), the lowest 18.1 °C (27 Sep 2018).

How often does it rain in Monemvasia in September?

On average there were 4.5 rain days (at least 1 mm) with 22.5 mm of precipitation in total.

How warm is the sea in Monemvasia in September?

The sea temperature averaged 25.5 °C (open-sea point approx. 3 km from the town).

Holiday Weather Rewind

Destinations Method & data

Loading weather data…

We are fetching the daily values for every year. The first time, this takes a few seconds.

Monemvasia weather in September: temperature & rain

Photo: Katsikas pantelis · CC BY-SA 4.0

🇬🇷 Weather in Monemvasia in September

This is what the weather in Monemvasia (Peloponnese, Greece) was like in September over the years 2017–2026.

Key facts at a glance

Prevailing weather: Sunny

Avg. daytime high

26.8 °C

26.4 °C – 27.7 °C

Avg. night-time low

24.1 °C

23.4 °C – 24.9 °C

Avg. rain days in period

4.5

15 % of days · ≥ 1.0 mm

Avg. precipitation in period

22.5 mm

7.1 mm – 56.2 mm

Avg. cloud cover

22 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

25.5 °C

Sea measuring point approx. 3 km from the location

Extremes: Highest temperature 31.8 °C (1 Sep 2020) · Lowest temperature 18.1 °C (27 Sep 2018) · Avg. daily peak wind 27 km/h

Weather mix of all days

199Sunny
28Partly cloudy
4Cloudy
35Light rain
10Rain

Summary

On average 26.8 °C during the day and 24.1 °C at night.
On average 4.5 rain days (Rain day = at least 1.0 mm of precipitation) with 22.5 mm of precipitation in total.
The sea averaged 25.5 °C.
Prevailing weather: Sunny.
Warmest year: 2024 (avg. 27.7 °C), coolest: 2021 (avg. 26.4 °C).
Wettest year: 2023 (56.2 mm), driest: 2019 (7.1 mm).
Extremes: 31.8 °C on 1 Sep 2020 and 18.1 °C on 27 Sep 2018.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max26.7°Avg. min24.5°
Rain days
6 Rain days
Precipitation
24.6 mm
Avg. cloud cover
–
Sea temperature
26.1 °C
Max 29.9 °C · Min 20.6 °C
2025
Avg. max26.9°Avg. min24.4°
Rain days
2 Rain days
Precipitation
9.2 mm
Avg. cloud cover
17 % cloudy
Sea temperature
25.4 °C
Max 30.1 °C · Min 21.2 °C
2024
Avg. max27.7°Avg. min24.9°
Rain days
7 Rain days
Precipitation
15.8 mm
Avg. cloud cover
27 % cloudy
Sea temperature
26.7 °C
Max 30.6 °C · Min 22.6 °C
2023
Avg. max26.4°Avg. min23.8°
Rain days
10 Rain days
Precipitation
56.2 mm
Avg. cloud cover
38 % cloudy
Sea temperature
25.3 °C
Max 29.1 °C · Min 21.9 °C
2022
Avg. max26.7°Avg. min23.8°
Rain days
2 Rain days
Precipitation
7.6 mm
Avg. cloud cover
20 % cloudy
Sea temperature
25.6 °C
Max 30.5 °C · Min 20.8 °C
2021
Avg. max26.4°Avg. min23.7°
Rain days
3 Rain days
Precipitation
9.0 mm
Avg. cloud cover
22 % cloudy
Sea temperature
25.0 °C
Max 31.0 °C · Min 20.2 °C
2020
Avg. max27.3°Avg. min24.6°
Rain days
6 Rain days
Precipitation
43.3 mm
Avg. cloud cover
16 % cloudy
Sea temperature
25.5 °C
Max 31.8 °C · Min 21.4 °C
2019
Avg. max26.7°Avg. min24.1°
Rain days
1 Rain days
Precipitation
7.1 mm
Avg. cloud cover
15 % cloudy
Sea temperature
25.3 °C
Max 29.5 °C · Min 21.0 °C
2018
Avg. max26.8°Avg. min24.1°
Rain days
5 Rain days
Precipitation
35.0 mm
Avg. cloud cover
24 % cloudy
Sea temperature
26.0 °C
Max 30.4 °C · Min 18.1 °C
2017
Avg. max26.4°Avg. min23.4°
Rain days
3 Rain days
Precipitation
17.2 mm
Avg. cloud cover
16 % cloudy
Sea temperature
24.7 °C
Max 31.3 °C · Min 19.5 °C

Frequently asked questions

How warm is it in Monemvasia in September?: Daytime highs averaged 26.8 °C, night-time lows 24.1 °C. The highest value of the past 10 years was 31.8 °C (1 Sep 2020), the lowest 18.1 °C (27 Sep 2018).
How often does it rain in Monemvasia in September?: On average there were 4.5 rain days (at least 1 mm) with 22.5 mm of precipitation in total.
How warm is the sea in Monemvasia in September?: The sea temperature averaged 25.5 °C (open-sea point approx. 3 km from the town).

Check your exact travel dates

Choose your travel period – we show the weather for exactly those days.

Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis); Sea measuring point approx. 3 km from the location (36.700, 23.090)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)